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Small-Space Storage Systems

Storage Fit Calculator

Enter your shelf and bin measurements and get an exact count: how many bins fit across, stacked and deep, how much of the shelf they use, and — when they don't fit — which dimension is the blocker and the largest bin that would work.

Use the Storage Fit Calculator

Built-in module

Bin Count & Shelf Capacity Calculator — the count above is the module: bins across × high × deep, with volume used.

How it works

The calculator converts everything to centimetres, subtracts your clearance from width and height, then divides each shelf dimension by the bin dimension (rounding down, because half a bin is not a bin). Volume and percentage-used come from the same numbers.

How to use it

  1. Measure the inside of the shelf: width, height and depth.
  2. Measure the outside of the bin, including its lid and handles.
  3. Pick your unit, enter both sets of numbers, and read the count.
  4. Use the placement list when you print: it repeats the count and the shelf it belongs to.

Frequently asked questions

How much clearance should I leave?

1 cm is enough to slide a bin out comfortably; leave 2–3 cm if the shelf is in a humid room or the bins are flexible and bulge when full. The field is yours to change — the maths uses exactly what you enter.

The result says a bin does not fit, but it fits when I push. What is happening?

Usually the lid or handles: measure the bin at its widest point, including the lid rim. The calculator uses your numbers literally, which is the point — it plans for the shelf as it is, not as it can be forced.

Can I use this for a cupboard or under-bed box?

Yes — any rectangular space and any rectangular container. For under-bed storage, the 'shelf height' is the clearance under the bed frame.

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