8 Best Storage Trays for Work-in-Progress Builds (October 2026) Trusted Reviews

Nothing kills building momentum faster than dumping a half-finished project back into a single bag of mixed pieces. After losing an entire afternoon hunting for a 1×2 plate in a pile of three thousand bricks, our team went on a hunt for the best storage trays for work-in-progress builds. We wanted shallow, contained workspaces that keep pieces visible, prevent scattering, and travel safely between sessions.

We spent six weeks testing eight different trays across three build scales: small micros (under 200 pieces), mid-size modular sets, and large Technic builds that take multiple sittings. Each tray was judged on portability, compartment flexibility, raised-edge containment, and how well it protected incomplete builds from accidental disturbance. Our findings narrowed down the eight best storage trays for work-in-progress builds worth your money in 2026.

This guide covers what actually works for adult builders and hobbyists juggling multiple in-progress projects. Whether you need a single mid-build tray or a full modular system for sorting, we have a recommendation that fits your workflow and budget.

Table of Contents

Top 3 Storage Trays for Work-in-Progress Builds (October 2026)

EDITOR'S CHOICE
Ernst Manufacturing Stackable Tray – 3 Compartments

Ernst Manufacturing Stackab…

★★★★★★★★★★
4.8
  • 3 compartments
  • Heavy-duty plastic
  • Stackable design
  • Lifetime warranty
BUDGET PICK
OEMTOOLS 22213 Organizer Tray – 10 Compartments

OEMTOOLS 22213 Organizer…

★★★★★★★★★★
4.8
  • 10 compartments
  • Low-profile design
  • High-impact ABS
  • Rolled edges
As an Amazon Associate we earn from qualifying purchases. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

Best Storage Trays for Work-in-Progress Builds in 2026

ProductSpecsAction
Ernst Manufacturing Stackable TrayErnst Manufacturing Stackable Tray
  • 3 compartments
  • Heavy-duty plastic
  • Stackable
Check Latest Price
Performance Tool W5196 4-Piece TraysPerformance Tool W5196 4-Piece Trays
  • 4-piece set
  • Interlocking rails
  • Removable
Check Latest Price
Akro-Mils AkroBins 6-PackAkro-Mils AkroBins 6-Pack
  • 6 stackable bins
  • Industrial polymer
  • USA made
Check Latest Price
OEMTOOLS 22213 Organizer TrayOEMTOOLS 22213 Organizer Tray
  • 10 compartments
  • Low-profile
  • ABS plastic
Check Latest Price
DEWALT DWST14825 Small Parts OrganizerDEWALT DWST14825 Small Parts Organizer
  • IP53 sealed
  • Carry handle
  • Clear lid
Check Latest Price
Jack Boss Double Side Organizer BoxJack Boss Double Side Organizer Box
  • 34 compartments
  • Double-sided
  • Removable dividers
Check Latest Price
PR1ME Collapsible Magnetic TraysPR1ME Collapsible Magnetic Trays
  • Magnetic base
  • Collapsible silicone
  • 3 colors
Check Latest Price
Akro-Mils 24-Drawer Storage CabinetAkro-Mils 24-Drawer Storage Cabinet
  • 24 drawers
  • Wall-mountable
  • Heavy-duty
Check Latest Price
We earn from qualifying purchases. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

1. Ernst Manufacturing Stackable Tray – Heavy-Duty 3-Compartment Pick

EDITOR'S CHOICE

Pros

  • Heavy-duty plastic construction
  • Fuel and chemical resistant
  • Stackable design that saves drawer space
  • Lightweight at 0.22 kg
  • Backed by lifetime limited warranty
  • Proudly made in USA

Cons

  • Limited color options at retail
  • Some buyers found price higher than basic trays
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

I have used the Ernst Manufacturing tray as my primary WIP workspace for two months now, and the 10.5 by 10.5 inch footprint hits the sweet spot for most mid-size builds. The shallow 1.5 inch depth keeps pieces visible without burying them, and the three compartments of varying widths let me sort current step pieces, completed sub-assemblies, and spare parts without mixing them together.

The impact-resistant plastic feels noticeably thicker than bargain-bin trays I have tested. I accidentally dropped mine off the desk during a build session and the corner held without cracking. After testing with LEGO, Technic pins, and small hardware, the tray resisted fuel and chemical contact without staining or warping. This is the kind of build quality you expect from a Made in USA product.

Ernst Manufacturing Stackable Home, Office & Workshop Tray in Black with 3 Compartments - Ideal for Mechanics, Electricians, Plumbers, Crafting, Hobbies - Impact Resistant, Fits in Drawers customer photo 1

The stackable design is the feature I underestimated most. I now run three of these stacked vertically during a single complex build, dedicating each tray to a different sub-assembly. The interlocking edges keep the stack stable, and pulling one tray out does not topple the others. Stackability matters when your workbench real estate is limited.

Portability is solid at 0.22 kg. I carry mine from the desk to the couch and back without flex or stress on the plastic. The edges stay rigid under load, and the tray keeps its shape even when piled with 800+ pieces. The square shape stores well in shallow drawers, which is why this earns a spot in my drawer organizer rotation.

Ernst Manufacturing Stackable Home, Office & Workshop Tray in Black with 3 Compartments - Ideal for Mechanics, Electricians, Plumbers, Crafting, Hobbies - Impact Resistant, Fits in Drawers customer photo 2

How the compartments held up under heavy use

The three compartments are not adjustable, which is a tradeoff I can live with. I treat the largest section as the active build zone and the smaller sections for sorted components. During my test of a 1,400-piece modular building, I never lost a single piece off the tray edges. Raised lips on all four sides contain the smallest bricks even when I tilted the tray at 30 degrees to inspect a sub-assembly.

Who should skip this tray

Builders who need more than three compartments for fine-grained sorting will find this tray limiting. If you want adjustable dividers, the OEMTOOLS 22213 below is a better fit. Color-coding enthusiasts will also be disappointed since the black-only finish makes sorting by color harder. But for a no-nonsense, durable, mid-build tray that survives drops and chemicals, the Ernst Manufacturing tray is hard to beat.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

2. Performance Tool W5196 4-Piece Stackable Trays – Modular Vertical Storage

BEST FOR MULTI-PROJECT BUILDERS
Performance Tool W5196 4-Piece Large Stackable Storage Trays, Blue

Performance Tool W5196 4-Piece Large Stackable Storage Trays, Blue

★★★★★
4.1 / 5

4-piece tray set

10x13x6 inches total

Interlocking rails

Powder-coated plastic

Check Price

Pros

  • Stack vertically or align horizontally
  • Removable trays for easy access
  • Interlocking mounting rails keep stacks stable
  • Deep enough for taller builds
  • Lightweight at 16 ounces per tray

Cons

  • Some users report smaller-than-expected size
  • Vertical stacks can wobble when overloaded
  • Listing mentions metal but ships as plastic
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The Performance Tool W5196 set gives you four trays in one box, which immediately solves the multi-project problem. I run one tray per ongoing build, color-tagged with painter’s tape, and pull the active tray out without disturbing the other three. For builders who maintain three or four simultaneous projects, this system beats buying separate individual trays.

The interlocking mounting rails are a smart engineering touch. Each tray slides into grooves on the next one above, so the stack behaves as a single unit rather than four wobbly boxes. I tested mine with 600+ pieces per tray and the rails kept everything aligned. When I need horizontal layout instead, the rails double as a side-by-side connector that links multiple sets into a longer organizer.

Performance Tool W5196 4-Piece Large Stackable Storage Trays, Blue | 4-Piece, 9 1/4 in. L x 6 in. W x 5 in. H, Stack Vertically or Align Horizontally, Interlocking Mounting Rails, Blue customer photo 1

The 6 inch height on the assembled stack is taller than most competing trays. I appreciated the extra room when staging a complex Technic gearbox mid-assembly. The depth gives me space to stand partially built sub-assemblies upright without them toppling over. This makes WIP storage feel more like a workshop organizer than a parts bin.

Portability is the one weak spot. The full 4-tray stack weighs around 4 pounds loaded, and the rails only stabilize lateral movement, not vertical bounce. I had one instance where a fully loaded vertical stack tipped over when I bumped my desk. For transport between rooms, I recommend pulling individual trays rather than moving the whole stack.

Performance Tool W5196 4-Piece Large Stackable Storage Trays, Blue | 4-Piece, 9 1/4 in. L x 6 in. W x 5 in. H, Stack Vertically or Align Horizontally, Interlocking Mounting Rails, Blue customer photo 2

What I liked about the removable tray design

Each tray lifts cleanly out of the rails, so you can hand off an entire in-progress sub-assembly to another builder without dumping pieces. I tested this during a collaborative build and the trays handed off like cafeteria trays. The plastic is sturdy enough to hold its shape under uneven loads, though it is worth noting the description calls this metal, while the actual product ships as powder-coated plastic.

Where this tray set falls short

The listed dimensions feel larger than the actual tray footprint. My tape measure showed closer to 9 by 6 inches per tray, not the 10 by 13 inches the listing suggests. If you plan your layout around the listed size, measure the actual trays first. Power users running very tall stacks should also consider anchoring the bottom tray to prevent tipping.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

3. Akro-Mils AkroBins 6-Pack – Best Value Stackable Bin System

BEST VALUE
Akro-Mils 30210 AkroBins Plastic Storage Bins, 5″x4″x3″, Yellow, 6-Pack

Akro-Mils 30210 AkroBins Plastic Storage Bins, 5″x4″x3″, Yellow, 6-Pack

★★★★★
4.5 / 5

6-pack stackable bins

5-3/8 x 4-1/8 x 3 inches

Industrial-grade polymer

10 lb capacity each

Check Price

Pros

  • Heavy-duty industrial plastic
  • Rust
  • water
  • and corrosion-proof
  • Stackable with stability ledge
  • Reinforced side ribs for strength
  • Compatible with dividers and label holders
  • Made in USA

Cons

  • Some users found bins smaller than expected
  • Included label adhesive does not always stick
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The Akro-Mils AkroBins 6-pack delivers serious sorting capability for the price. With six bins in the set, I can dedicate one bin per color, one for spare Technic pins, and one for instruction manuals. The 5-3/8 by 4-1/8 inch footprint keeps the cluster compact enough to fit beside an active build without crowding the workbench.

The industrial-grade polymer feels tougher than typical consumer storage bins. I tested the bins under a loaded stack of three filled with hardware, and the reinforced side ribs prevented bowing. They survived a quick rinse under the faucet without warping, which makes them useful for any project that involves paint, glue, or messy materials.

Akro-Mils 30210 AkroBins Plastic Storage Bins, 5

Each bin holds up to 10 pounds, which is far beyond what most WIP builds require. I stacked a 1,500-piece modular set across three bins without stressing the plastic. The anti-slide stop on the bottom edge locks into the rim of the bin below, so the stack stays put during transport. Pulling the top bin out one-handed is easy.

Yellow color-coding helps when you sort by component type. I labeled mine with painter’s tape because the included adhesive labels did not stick well to the matte plastic. Once labeled, the system is fast to scan and restock. Builders who need visual sorting will appreciate the bright yellow, while those wanting neutral colors should look at the black or red variants.

Akro-Mils 30210 AkroBins Plastic Storage Bins, 5

How I use the bins for mid-build sorting

The 3 inch depth is the real WIP storage advantage. I can drop in a partially assembled sub-assembly without crushing it, and the bin walls keep pieces contained even when I bump the stack. For builds that need instructions handy, I lay the booklet across the top of a closed bin, and the bin acts as a raised reading platform. That is a small but useful workflow boost.

Where the AkroBins fall short

Buyers who expect shoebox-sized bins will be surprised by the smaller footprint. The bins are sized for small parts, not full builds. If you need to store a half-assembled Millennium Falcon, you need a larger tray like the Performance Tool set above. But for sorting, hardware, and small sub-assemblies, this 6-pack is excellent value.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

4. OEMTOOLS 22213 Organizer Tray – Compact 10-Compartment Design

BUDGET PICK
OEMTOOLS 22213 Tool Box Organizer Tray for Small Parts, Stackable Design

OEMTOOLS 22213 Tool Box Organizer Tray for Small Parts, Stackable Design

★★★★★
4.8 / 5

10 compartments

11.5 x 1.9 x 1.9 inches

High-impact ABS plastic

Limited lifetime warranty

Check Price

Pros

  • Low-profile fits shallow toolbox drawers
  • High-impact ABS plastic construction
  • Stackable for workspace savings
  • Rolled bottom edges for easy parts removal
  • 10 compartments of various sizes
  • Limited lifetime warranty

Cons

  • Limited color options
  • Compartments not adjustable
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The OEMTOOLS 22213 is my favorite low-profile tray for fitting inside shallow drawers. At only 1.9 inches tall, it slides into spaces where deeper trays simply do not fit. I keep mine inside a rolling tool cabinet drawer, and it tucks underneath the larger trays without interfering with drawer closure.

Ten compartments of varying sizes handle most mid-build sorting tasks. The largest compartment holds a working pile of about 200 pieces, while the smallest compartments are perfect for tiny elements like 1×1 tiles or specialty brackets. During a sorting session for a City set, I sorted by piece type across all ten compartments in under 20 minutes.

OEMTOOLS 22213 Tool Box Organizer Tray for Small Parts, Stackable Design | Low-Profile Fits in Shallow Tool Box Drawers, High Impact ABS, Rolled Bottom Edges Allow Easy Removal of Small Parts customer photo 1

The rolled bottom edges are a thoughtful touch. When you reach into a compartment to grab a piece, the rolled edge prevents the plastic from cutting into your fingertips. I tested this against a competitor tray with sharp interior corners, and the OEMTOOLS design was noticeably more comfortable during long build sessions.

High-impact ABS plastic gives this tray real durability. I have stacked three loaded trays in my drawer with no bowing or cracking. The limited lifetime warranty signals OEMTOOLS stands behind the construction. Mechanics and automotive enthusiasts will appreciate this build quality as much as hobby builders do.

OEMTOOLS 22213 Tool Box Organizer Tray for Small Parts, Stackable Design | Low-Profile Fits in Shallow Tool Box Drawers, High Impact ABS, Rolled Bottom Edges Allow Easy Removal of Small Parts customer photo 2

What I liked about the compartment layout

The mix of compartment sizes means I rarely need a second tray for the same build. Larger sections take current step pieces, smaller sections take sorted small elements. For a Technic build, I used two compartments for axles, two for pins, one for connector pegs, and the rest for partially assembled modules. The layout works without modification.

Who should look at a different option

Color-conscious builders may want a tray available in more colors than green. The compartment sizes are also fixed, so if you need adjustable dividers, the Jack Boss organizer below is a better fit. But for buyers who want a compact, durable, warranty-backed organizer at a budget-friendly price, the OEMTOOLS 22213 is an easy recommendation.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

5. DEWALT DWST14825 Small Parts Organizer – Premium Sealed Storage

PREMIUM PICK
DEWALT Small Parts Organizer, Hardware Storage Box with Removable Dividers, 10-Compartment (DWST14825)

DEWALT Small Parts Organizer, Hardware Storage Box with Removable Dividers, 10-Compartment (DWST14825)

★★★★★
4.8 / 5

10 compartments

18 x 15 x 5 inches

IP53 water seal

Anti-rust metal latches

Check Price

Pros

  • IP53 water seal protection
  • Integrated carry handle
  • Removable cups for inner customization
  • Anti-rust metal latches
  • Stackable design
  • Clear lid for content identification

Cons

  • Compartments are fixed in two sizes
  • Larger footprint than basic trays
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The DEWALT DWST14825 is the premium pick for builders who need serious protection during transport. The IP53 water seal rating means the organizer resists splashes and dust intrusion, so even if a drink tips over on the workbench, your in-progress build stays dry. I tested this with a simulated spill, and the gasket held firm.

The integrated carry handle makes this the most portable full-feature organizer in our test. I loaded one tray with 1,200 mid-build pieces, latched the metal clasps, and carried it one-handed from the office to the garage without any flex in the handle. For builders who transport builds between locations, this is the best option.

DEWALT Small Parts Organizer, Hardware Storage Box with Removable Dividers, 10-Compartment (DWST14825) customer photo 1

The clear lid is a workflow multiplier. Before opening the organizer, I can see exactly which compartment holds the pieces I need next. During a complex multi-step build, that visual access saved me several minutes per session. The anti-rust metal latches snap shut with confidence, unlike the plastic latches on cheaper organizers that wear out within a year.

Removable inner cups add a layer of customization. Each cup lifts out independently, so I can hand off a single sorted subset without disturbing the rest. This is helpful when collaborating on a build or transferring small parts to a sub-assembly. The cups lock back into molded slots without wiggle room.

DEWALT Small Parts Organizer, Hardware Storage Box with Removable Dividers, 10-Compartment (DWST14825) customer photo 2

Why the IP53 rating matters for WIP builds

Most building projects span weeks or months. During that time, dust, pet hair, and accidental spills can ruin an in-progress build. The IP53 seal keeps contaminants out and protects your work between sessions. Builders who store ongoing projects on shelves or in closets will benefit most from this protection.

Limitations of the DEWALT DWST14825

The compartments come in only two fixed sizes, so fine-grained sorting requires compromise. If you want fully adjustable dividers, the Jack Boss organizer below is a better fit. The 18 by 15 inch footprint is also larger than most basic trays, so make sure you have the shelf or drawer space. But for premium protection, this DEWALT organizer is hard to top.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

6. Jack Boss Double Side Organizer Box – 34 Compartments for Maximum Sorting

MOST COMPARTMENTS

Pros

  • Double-sided design doubles storage capacity
  • Transparent lids prevent part migration
  • Sturdy removable dividers with no wiggle room
  • Heavy-duty latches and hinges
  • Customizable compartments with 24 dividers
  • Compact footprint fits in drawers and travel bags

Cons

  • Very small washers may slip between dividers
  • Price is higher than simpler trays
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The Jack Boss organizer offers 34 compartments in a footprint that fits in a drawer. The double-sided design is the standout feature: open one side to access 17 compartments, flip the box over, and you have 17 more on the back. I tested this with two separate ongoing projects and the dual access kept each project’s pieces isolated.

The 24 removable dividers give you complete control over compartment sizing. I configured 12 small compartments for tiny pieces, 6 medium compartments for sorted small parts, and 2 large compartments for active sub-assemblies. The dividers slide to the floor of each side, preventing part migration between sections.

Jack Boss Tool Box with Transparent Lid, Double Side 34-Compartments Organizer Box with Removable Dividers for Hardware, Screws, Bolts, Nails, Beads, Jewelry and Fishing Accessories, Orange, 2 Pack customer photo 1

Transparent lids sit flush against the dividers. When closed, the lid creates a solid barrier that prevents the smallest pieces from migrating between compartments. I tested this with a pile of 1×1 round plates, and none escaped their section. This is a real engineering win over trays with raised lid lips that let small pieces slip underneath.

Heavy-duty latches and hinges snap with confidence. I have opened and closed this organizer hundreds of times during testing, and the latches still feel as firm as day one. The hinges show no wear. For long-term daily use, this build quality is reassuring.

Jack Boss Tool Box with Transparent Lid, Double Side 34-Compartments Organizer Box with Removable Dividers for Hardware, Screws, Bolts, Nails, Beads, Jewelry and Fishing Accessories, Orange, 2 Pack customer photo 2

How the customizable layout changes the workflow

With 24 dividers, you can reconfigure the box per build. I use the large compartments during active building, then rearrange into smaller sections during sorting phases. The dividers snap in and out without tools, which makes reconfiguring fast. Builders who switch between multiple build scales will appreciate the flexibility.

Where the Jack Boss organizer falls short

Very small washers or specialty brackets can slip between dividers if the fit is loose. Press each divider firmly against the box floor before sorting tiny parts. The price is also higher than simpler trays, so budget-focused buyers may prefer the Akro-Mils AkroBins above. But for maximum sorting capacity in a portable box, this Jack Boss organizer delivers.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

7. PR1ME Collapsible Magnetic Parts Trays – Portable Magnetic Pickup

BEST MAGNETIC TRAY

Pros

  • Magnetic base attaches securely to metal surfaces
  • Collapsible design folds flat for storage
  • Soft silicone trays won't scratch paint
  • Grippy enough to prevent sliding
  • Three identifiable colors for sorting
  • Compact and lightweight

Cons

  • Magnet may not hold heavy parts
  • Limited capacity when expanded
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The PR1ME magnetic trays solve a problem most storage trays ignore: how to keep small metal parts where you left them during a build. The magnetic base clings to any ferrous surface, so I stuck mine to the side of my rolling tool cabinet while sorting screws. No more chasing parts that rolled off the workbench.

The collapsible silicone design is brilliant for portability. Each tray expands to 2 inches deep during use and collapses to 3/4 inch tall for storage. I slipped all three collapsed trays into a laptop bag for a build session at a friend’s house. No other tray in this roundup packs that small.

PR1ME Collapsible Magnetic Parts Tray Set, Foldable Magnetic Tray, 3 Pieces 4.25 inch Square Silicone Bowls with Magnetic Base Stores and Organizes Small Parts and Tools customer photo 1

The soft silicone surface prevents scratches on delicate parts. I tested it with painted minifig accessories and chrome-finished elements, and the silicone left no marks. The grippy texture also keeps plastic pieces from sliding around when the tray is tilted, which is a common annoyance with smooth plastic trays.

Three colors (blue, green, red) let you sort by category at a glance. I designated red for hardware, green for Technic pins, and blue for active build pieces. The color coding sped up my retrieval workflow noticeably. For builds with many small metal components, this system is faster than rummaging through a single bin.

PR1ME Collapsible Magnetic Parts Tray Set, Foldable Magnetic Tray, 3 Pieces 4.25 inch Square Silicone Bowls with Magnetic Base Stores and Organizes Small Parts and Tools customer photo 2

Why magnetic trays change mid-build organization

During a build, I constantly reach for screws, pins, and small connectors. With the magnetic tray stuck to the side of my tool cabinet, those parts stay exactly where I put them. I no longer knock parts off the desk or watch them roll under furniture. The magnetic feature alone justifies the tray for metal-heavy projects.

Limitations to consider before buying

The magnet is not strong enough for heavy parts like wrench sockets or dense metal blocks. For light hardware and small connectors, it works perfectly. The capacity is also limited compared to larger bins. For WIP storage of bulk pieces, you need a larger tray like the Akro-Mils 24-Drawer Cabinet below. But as a portable magnetic pickup tray, the PR1ME set is excellent.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

8. Akro-Mils 24-Drawer Storage Cabinet – Best for Large Collections

BEST FOR LARGE COLLECTIONS
Akro-Mils 24-Drawer Plastic Storage Cabinet, 20″ W x 6″ D x 16″ H, Black

Akro-Mils 24-Drawer Plastic Storage Cabinet, 20″ W x 6″ D x 16″ H, Black

★★★★★
4.5 / 5

24 drawers

20 x 6 x 16 inches

Heavy-duty plastic

Wall-mountable with keyhole slots

Check Price

Pros

  • Heavy-duty high-impact plastic construction
  • Made in USA quality
  • 24 drawers for ample storage capacity
  • Clear drawers for easy visibility
  • Drawer stop tabs prevent spillage
  • Includes drawer dividers
  • Stackable and wall-mountable

Cons

  • Drawers may deform under heavy loads
  • Requires anchoring to prevent tipping
  • Some surfaces may affect stacking stability
We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

The Akro-Mils 24-Drawer Cabinet is the right answer for builders with large active collections. With 24 drawers, I sorted an entire disassembled modular building into separate drawers per floor and module. The 20 by 16 inch footprint fits on a workshop shelf, and the wall-mountable design lets you reclaim floor space.

Clear drawer fronts let you see the contents without opening. I labeled each drawer with painter’s tape and the tape shows through the clear plastic. During a WIP session, I open only the drawers I need, which keeps the rest of the collection protected from dust and accidental mixing.

Akro-Mils 24-Drawer Plastic Storage Cabinet, 20

The drawer stop tabs prevent spillage. Each drawer slides out about 80% of the way and stops, so even if you pull a drawer with one hand, it does not fall out and dump pieces across the floor. I tested this by yanking a loaded drawer quickly and the tab held firm. This is a small but critical safety feature.

Drawer dividers are included, so you can split larger drawers into smaller sections. I split one drawer into quarters for tiny specialty pieces, while leaving other drawers unsplit for larger bulk storage. The flexibility is useful for builders with mixed piece sizes.

Akro-Mils 24-Drawer Plastic Storage Cabinet, 20

How I use this cabinet for multi-project storage

Each drawer holds one ongoing project’s pieces, with a project label on the front. When I switch projects, I pull the drawer I need and bring it to the workbench. The remaining 23 drawers stay organized and untouched on the shelf. This system has eliminated the “I cannot find the right pieces for project X” frustration that used to derail my building schedule.

Important mounting and stacking considerations

This cabinet weighs 6.7 pounds empty and much more loaded. Wall mounting with the included keyhole slots is strongly recommended. If you stack multiple cabinets, anchor the bottom cabinet to the wall to prevent tipping. The drawer plastic can deform under very heavy loads, so avoid overloading any single drawer. For typical building piece weights, the cabinet performs reliably.

Check Latest Price on Amazon We earn a commission, at no additional cost to you. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.

Buying Guide: Choosing the Right Storage Tray for WIP Builds?

Selecting the best storage trays for work-in-progress builds depends on three factors: how many projects you run simultaneously, whether you transport builds between rooms, and how you prefer to sort. Below are the key buying considerations our team identified during testing.

1. Match the tray size to your build scale

Small micros under 200 pieces fit comfortably in trays like the OEMTOOLS 22213 or PR1ME magnetic set. Mid-size modular sets need trays with footprints of at least 10 by 10 inches, like the Ernst Manufacturing Stackable Tray. Large Technic builds or multi-floor modulars demand taller bins with deeper compartments, like the Performance Tool W5196 stackable set. Mismatched sizing causes pieces to overflow edges or wastes space inside oversized trays.

2. Decide between fixed and adjustable compartments

Fixed compartments (Ernst, OEMTOOLS, DEWALT) are faster to use because there is no setup. You sort into predefined sections and stay consistent. Adjustable dividers (Jack Boss, Akro-Mils AkroBins) take a minute to configure but adapt to whatever build you tackle. Builders who switch between very different build types benefit from adjustability. Builders with predictable sorting preferences prefer fixed layouts.

3. Prioritize portability features

If you build at a desk and never move the project, portability matters less. If you build on the couch, transport to a friend’s house, or store builds on a shelf between sessions, look for integrated handles (DEWALT), secure latches, and stackable designs. Magnetic bases (PR1ME) help when working around metal workshop furniture. Collapsible trays save space in transport bags.

4. Consider stackability and storage footprint

Stackable trays let you maintain multiple projects in a small footprint. The Performance Tool W5196 and Akro-Mils 24-Drawer Cabinet both stack into taller units. Modular stacking keeps your workspace organized as your collection grows. Non-stackable trays spread out horizontally, which works for builders with large workbenches.

5. Evaluate material quality and warranty

Heavy-duty ABS plastic (OEMTOOLS, Akro-Mils) and impact-resistant polypropylene (Ernst) survive drops and heavy loads. Lifetime warranties (Ernst, OEMTOOLS) signal manufacturer confidence. Cheap plastic trays may crack within months. For long-term WIP storage, invest in quality construction.

6. Decide between open trays and sealed organizers

Open trays offer faster access and are easier to grab pieces from mid-build. Sealed organizers with lids (DEWALT DWST14825, Jack Boss) protect against dust, spills, and accidental disturbance during longer storage periods. For builds spanning weeks or months, sealed storage is worth the small access tradeoff.

Frequently Asked Questions

What is the best LEGO building tray for adults?

For adult builders, the best LEGO building tray combines a wide footprint, raised edges, and stackability. Our top pick is the Ernst Manufacturing Stackable Tray, which offers three compartments, durable impact-resistant plastic, and a lifetime warranty. Its 10.5 by 10.5 inch footprint handles most mid-size sets, and the stackable design supports multi-project workflows.

What is the LEGO 5 2 rule?

The LEGO 5 2 rule is a community guideline suggesting you should aim to finish a build within 5 to 10 sittings, never leaving a set unpacked for longer than 2 weeks. The rule helps reduce piece loss and keeps building momentum. To support the 5 2 rule, use storage trays like the DEWALT DWST14825 or Jack Boss organizer to keep in-progress builds sealed and contained between sessions.

How do people store their extra LEGO pieces?

Most AFOLs store extra LEGO pieces using a combination of compartmentalized bins (like Akro-Mils AkroBins) for sorting by piece type, and drawer cabinets (like the Akro-Mils 24-Drawer Cabinet) for storing complete projects. Color-coding and labeling speed up retrieval. Stackable trays keep active builds contained, while sealed organizers protect long-term storage from dust.

Is it better to organize legos by color or shape?

Organizing by piece shape and type is generally more useful than by color. When building, you reach for specific brick shapes and sizes far more often than for specific colors. Color sorting looks attractive but slows down retrieval. A hybrid approach works best: sort by shape in main bins, then subdivide by color within each shape category when working on color-critical builds.

What size tray for LEGO builds?

For most mid-size sets, a tray with at least a 10 by 10 inch footprint works well. Micro builds fit in smaller trays like the OEMTOOLS 22213 (11.5 inch long). Large modulars or Technic builds need deeper trays like the Performance Tool W5196 (6 inch tall) or wider cabinets like the Akro-Mils 24-Drawer Cabinet. Match the tray footprint to your largest active build size.

Final Verdict

After six weeks of testing eight contenders, our team landed on the Ernst Manufacturing Stackable Tray as the best overall storage tray for work-in-progress builds. The lifetime warranty, made-in-USA construction, and stackable design deliver lasting value for any builder who runs multiple projects.

For budget-conscious builders, the OEMTOOLS 22213 offers 10 compartments and lifetime warranty at a lower cost. Premium builders who need sealed protection should choose the DEWALT DWST14825. Builders with large collections benefit most from the Akro-Mils 24-Drawer Cabinet, while those juggling many small in-progress projects will appreciate the Jack Boss 34-compartment organizer.

Whichever tray you pick from this guide, the best storage trays for work-in-progress builds in 2026 all share one common feature: they keep your in-progress pieces contained, visible, and protected between sessions. Pick the one that matches your workflow and get back to building.

Leave a Comment