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Organiser tray grid fit calculator
Compare two uniform orientations of rectangular trays inside a board game box.
Your measurements
Use the units shown. Your measurements stay in this browser.
The plan
Your results
How the calculation works
Columns = floor((box width + gap) ÷ (tray width + gap)); rows use depth. Compare a 90° rotation.
Before you use the result
Two uniform grid layouts only; mixed orientations may fit more. Measure box interiors and tray exteriors at their widest points.
A worked example
Box inner width (mm): 280 · Box inner depth (mm): 280 · Tray outer width (mm): 90 · Tray outer depth (mm): 60 · Gap between trays (mm): 2.
- Unrotated trays
- 12
- Rotated trays
- 12
- Best uniform grid
- 12
Results display up to three decimal places. Rounding happens only for display, except where the method explicitly counts whole items.