How to choose an organiser tray that fits your space
A simple buying guide
A tray is useful when you can drop your keys into it without moving three other things. Measure that landing spot first. Then compare Piece of Mind’s puzzle-shaped trays with Stackflow’s narrow, stackable format.
Which organiser tray should I choose?
Choose shallow compartments for rings, coins and clips you want to see at a glance. Choose a longer tray for keys and watches. Measure the usable surface and the items first, then check the tray’s outside dimensions, internal depth and the space needed to rearrange it.
Measure three things before ordering
- The clear surface. Measure the space left after a lamp, monitor or mirror is in place. Use a paper template to try the footprint.
- The largest item. A watch laid flat or a keyring with several keys may need more room than you expect. Outside dimensions include the walls and do not guarantee an internal fit.
- The working clearance. Leave room to reach into compartments, slide pieces apart or close a drawer above them.
The Piece of Mind listing gives the large base as 20 x 20 x 2 cm, with 1.5 cm usable depth; its puzzle-piece tray is 10 x 10 x 4 cm, with 3.5 cm usable depth. The small tray is listed at 14 x 14 x 1.4 cm. Check the selected size and included pieces before ordering; these are not dimensions for every possible assembled layout.
Stackflow is listed at 24 x 8 x 4.2 cm. Its narrow shape may suit an entryway ledge better than a square arrangement, provided the ledge is deep enough and the tray sits fully supported.
Start with where clutter lands.
Think about the objects you set down without noticing. The right tray keeps them together without asking you to change your routine.
By the door
Choose a defined catch-all for keys, coins and the small things that leave home with you.
On the desk
Use modular trays when pens, clips, cables and everyday tools need their own little zones.
At the dresser
Keep rings, earrings and other daily accessories visible, separated and easy to pick up.
Which one fits your routine?
Both designs can be rearranged. Piece of Mind uses interlocking puzzle trays; Stackflow has pieces that stack and slide. The useful difference is how their shapes fit your surface and separate your things.
Scroll sideways to see all columns.
| At a glance | Piece of Mind | Stackflow |
|---|---|---|
| Best for | Separating several small essentials | Grouping everyday carry on a narrow surface |
| Layout | Interlocking puzzle-shaped trays | Modular pieces that stack and slide |
| Typical objects | Rings, earrings, coins and clips | Keys, watches, coins and earphones |
| Size notes | Several sizes and pieces; see measurements above | Listed at 24 x 8 x 4.2 cm; allow extra room to slide pieces |
Meet the organisers.
Check the product photos for the layout you want, then compare its measurements with the clear space on your desk or dresser.
Modular organiser
Piece of Mind
Interlocking puzzle-shaped trays that let you create a small organising system around the objects you actually use.
Explore Piece of Mind
Sculptural catch-all
Stackflow
Tray pieces that stack and slide, with a looped interior for keys, coins, watches and earphones. The listed dimensions are 24 x 8 x 4.2 cm; leave room around it if you plan to slide the pieces apart.
Explore StackflowQuestions, answered
A few things people ask.
Which tray is better for keys and coins?
Stackflow’s long, narrow format suits keys, watches and loose pocket items. Piece of Mind suits smaller groups you want to separate in puzzle-shaped trays. Both can be rearranged; choose by the available footprint rather than treating one as a fixed tray.
Which organiser works for jewellery?
Piece of Mind is the more flexible option for rings, earrings and other small accessories because its modular trays can create separate zones.
Can I combine several Piece of Mind trays?
Yes. The puzzle-shaped modules are designed to interlock, so you can build a layout that suits your surface and the objects you want to organise.
What material are the organisers made from?
They are primarily 3D printed using plant-derived PLA. The individual product page remains the source of truth for the material and care guidance for a specific piece.
Product sources
Written by That Odd Piece about our own collection. Dimensions and intended uses were checked against these listings on 9 September 2026. This is buying guidance, not independent product testing.