Furniture Space Calculator
Check whether your furniture fits — from the room size and the pieces — with the free area, the free percentage and a walkway check.
Does the furniture fit? It is the room minus the pieces — and at least 30% of the floor should stay free for walking. This calculator is that check.
Enter the room and the pieces; the free space follows.
Your results
Enter your measurements and press Calculate.
Quantities are rounded up to whole tiles, planks, boxes or bags, after the wastage allowance. Cost appears only when you enter a price.
Formula
All lengths are converted to a single unit before the calculation: 1 ft = 0.3048 m, 1 in = 25.4 mm, 1 ft² = 0.09290304 m², 1 yd² = 9 ft². Material quantities are rounded up — you cannot buy part of a tile, plank or bag.
How to use this calculator
- Enter the room length and width.
- Enter each furniture piece's length and width (up to 3).
- Read the furniture area, the free area and the walkway check.
Worked example
| Room | 4 m × 5 m = 20 m² |
|---|---|
| Furniture | Bed 2 × 1.5 = 3 m², wardrobe 2 × 0.6 = 1.2 m², desk 1.2 × 0.6 = 0.72 m² |
| Furniture total | 3 + 1.2 + 0.72 = 4.92 m² |
| Free area | 20 − 4.92 = 15.08 m² (75.4% free) |
| Walkway | 75.4% ≥ 30% — Yes |
Check it by hand: every step above uses the formula in the box. If your numbers match the example inputs but the calculator gives a different answer, please report it via the contact page.
Frequently asked questions
How much free floor should a room have?
A common planning guide is at least 30% of the floor free for circulation — walkways, door swings and moving around. This calculator checks it for you.
What if the furniture does not fit?
The free area will be small or negative. Remove a piece, choose smaller furniture, or use the room size calculator to check a bigger room.
Does this check door swings and walkways?
Only by area — it does not draw the layout. A piece can fit by area and still block a door. Sketch the layout after the area check passes.
Can I use this for more than 3 pieces?
Three covers most rooms. For more, group small pieces (e.g. 'all chairs') or run the calculator twice and add the totals.
Related calculators
Estimates only. Results are for planning. Measure twice, confirm box coverage and tile sizes on the packaging you buy, and follow the manufacturer's instructions. See the disclaimer.