Laminate Flooring Calculator
Enter the room, the coverage on your laminate box and a waste allowance to get the boxes to buy, rounded up once. The plank size and expansion gap are fields for your own layout and do not change the count.
A ready-made setup of the Flooring Calculator.
Estimates for planning, not professional advice. Read the full notice.
The drawing did not open. Length and width are still here.
Room: shape and size
Skip the drawingDrag a round corner to move it. The small hollow diamond on a side is its curve handle: drag it across the side to curve the side (it is not a corner). To add a corner (a new point), tap the side itself, then choose Add a point here. Tapping a corner or a side opens its actions. Drag empty space to move the view; pinch, or Ctrl and the mouse wheel, to zoom. The keys are listed under Keys.
Keys
- Tab
- next corner; each says how far it is from corner 1
- Arrow keys on a corner
- move it one square; ten with Shift; 1/16 in with Alt
- Delete or Backspace
- remove the corner; its two sides join in one straight side
- + on a corner
- add a corner halfway along the next side
- Arrow keys on the drawing
- move the view; farther with Shift
- + and - on the drawing
- zoom in and out
- 0 on the drawing
- show the whole shape
- Ctrl+Z (Cmd+Z on a Mac)
- undo, except inside a typed field (it keeps its own)
- Ctrl+Shift+Z or Ctrl+Y
- redo
- Escape while dragging
- put it back where it was
- Enter on a corner or side
- go to its actions
- Escape in the actions
- close them and go back to the drawing
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- Area
- 168 ft²
- Perimeter
- 52 ft
- Cut-out edges
No area until the shape is fixed.
Estimate for planning, from what you entered and the product data shown. Check product labels and your supplier before you buy.
Shape: Rectangle Change
Sides
Corners
Cut-outs
Feet and inches, like 12' 6"
Example: a laminate bedroom floor
10 flooring, by the box
- Floor area 168 ft²
- Area with the waste allowance, before rounding 184.8 ft²
- Flooring bought 200 ft²
- Bought beyond the floor's own area 32 ft²
Your project
Enter a size to see your total.
Each product is rounded up once for the whole project, so the total can be less than the items bought alone added together. A line counted from a cut layout (sheets, boards or tiles laid out piece by piece) is counted for each item and added.
Shopping list
| Item | Size | Buy |
|---|---|---|
| Flooring, by the box | flooring, by the box | 10 |
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Worked example: a laminate bedroom floor
Show the working
- Area: length times width 14 ft × 12 ft = 168 ft²
- Add the waste allowance, once 168 ft² × 1.1 = 184.8 ft²
- Divide by the coverage of one box 184.8 ft² ÷ 20 ft² = 9.24 boxes
- Round up once, to whole boxes 9.24 boxes = 10 boxes of flooring
Assumptions
The figures behind the example. Sourced figures link to their source below; a default is a starting value to check against your label or supplier.
| Assumption | Value | Details and changes |
|---|---|---|
| Waste allowance | 10% | |
| Default Our starting value, not a sourced figure; your own allowance, added once. Change it for your layout. | ||
| Coverage of one box | No default | |
| Default From the box label. Check your label or supplier. | ||
| Plank size | No default | |
| Default Width and length from the label; it does not change the count, which follows the box coverage. Check your label or supplier. | ||
| Expansion gap | No default | |
| Default Shown for your own layout; it does not change the box count. Check your label or supplier. | ||
Feet and inches, like 12' 6"
Boxes by waste allowance
Boxes of laminate for the example room at four waste allowances, each worked on its own
| Waste allowance | Flooring with waste | Boxes |
|---|---|---|
| 0 percent | 168 ft² | 9 |
| 5 percent | 176.4 ft² | 9 |
| 10 percent | 184.8 ft² | 10 |
| 15 percent | 193.2 ft² | 10 |
No maker's laminate figure is printed here, so these are your own allowances. Each row adds its allowance once, then rounds up to whole boxes.
Questions
How many boxes of laminate do I need?
Enter the room's length and width and the coverage printed on your box. The calculator adds your waste allowance once to the floor area, divides by the box coverage and rounds up once to whole boxes.
Does the expansion gap change the box count?
No. The gap is a field for your own layout, shown beside the result and not taken off the area, so the box count follows the room's full area.
How much extra laminate should I buy?
The waste allowance is a field you can change, started at a typical figure. The table shows the boxes at four allowances for the example room, so you can see how the count moves.