Laminate Flooring Calculator
How many boxes of laminate flooring
A 12 by 12 ft room needs 8 boxes of laminate at 20 square feet a box, including 10% for cuts and end pieces. Enter your own room size and the coverage printed on your box to find how many to buy, and add a price per box for the cost. The maths is the same for LVP and engineered wood; only the coverage per box changes.
How many boxes of laminate?
Flooring boxes are the unit you actually buy in, called packs in the UK, so this doubles as a laminate flooring pack calculator. Enter a price per box and it becomes a laminate flooring cost calculator too.
Divide your area by the coverage printed on the box and round up to a whole box, because suppliers do not split them. Add 10% for cuts, or 15% for diagonal layouts and rooms with lots of corners.
Box coverage is not standard. Most laminate boxes hold 18 to 24 ft², but thicker boards and wider planks come in smaller boxes, so two products covering the same room can need noticeably different box counts. Always check the label rather than assuming 20 ft², and enter it as the coverage per box above.
Laminate box coverage chart
Boxes needed by room size, including the 10% waste allowance, at the two most common box sizes.
| Room size | Area | Area +10% | At 20 ft²/box | At 24 ft²/box |
|---|---|---|---|---|
| 10 × 12 ft | 120 ft² | 132 ft² | 7 boxes | 6 boxes |
| 12 × 12 ft | 144 ft² | 158 ft² | 8 boxes | 7 boxes |
| 12 × 15 ft | 180 ft² | 198 ft² | 10 boxes | 9 boxes |
| 12 × 20 ft | 240 ft² | 264 ft² | 14 boxes | 11 boxes |
| 15 × 20 ft | 300 ft² | 330 ft² | 17 boxes | 14 boxes |
| 20 × 20 ft | 400 ft² | 440 ft² | 22 boxes | 19 boxes |
Laminate, vinyl plank and hardwood compared
The calculation above works for all three, though each material has its own waste factor and box size, so use the dedicated hardwood and vinyl plank calculators when you are ordering. What changes is box coverage, how much waste to allow, and what the material costs.
| Flooring | Box coverage | Waste | Material per ft² | Watch out for |
|---|---|---|---|---|
| Laminate | 18 to 24 ft² | 10% | $1 to $4 | Not waterproof unless stated |
| Vinyl plank (LVP) | 20 to 30 ft² | 10% | $2 to $6 | Needs a very flat subfloor |
| Engineered hardwood | 20 to 30 ft² | 10 to 15% | $4 to $10 | Thin wear layer limits sanding |
| Solid hardwood | 18 to 24 ft² | 15% | $5 to $12 | Longer acclimation, nail-down only |
| Sheet vinyl | Sold by the roll | Seam allowance | $1 to $3 | 12 ft roll width, like carpet |
Worked example: a 12 × 15 ft room
| Material | Box coverage | Working | Order |
|---|---|---|---|
| Laminate | 20 ft² | 198 ÷ 20 = 9.9 | 10 boxes |
| LVP | 24 ft² | 198 ÷ 24 = 8.25 | 9 boxes |
| Solid hardwood | 20 ft² at 15% waste | 207 ÷ 20 = 10.35 | 11 boxes |
Keep one unopened box back as attic stock. A plank damaged in three years cannot be matched from a discontinued range, and replacing a single board is far cheaper than relaying a floor.
What laminate flooring costs
Laminate material runs about $1 to $4 per square foot, with professional installation adding $2 to $5 per square foot. For a 180 ft² room that is roughly $180 to $720 in material and $360 to $900 installed on top.
Budget separately for underlayment (unless pre-attached), transition strips at every doorway, quarter-round or new skirting to hide the expansion gap, and disposal of the old floor. On a small room those extras can rival the flooring itself.
Acclimate and leave an expansion gap
Laminate is a floating floor that expands and contracts with humidity. Let the boxes sit flat in the room for 48 hours first, and leave a quarter to three-eighths inch expansion gap around every wall and fixed object, hidden by skirting or quarter-round. Omitting the gap is the single most common cause of buckling.
Underlayment and AC rating
Most laminate needs a foam underlayment unless it is pre-attached. Check the board's AC rating for durability: AC3 suits most homes, AC4 to AC5 handles heavy or light-commercial traffic. Buy every box from the same production lot so the printed grain pattern stays consistent across the floor.
Laminate mistakes that waste boxes
- Assuming 20 ft² per box. Coverage ranges from 18 to 30 depending on plank size. Read the label.
- Ordering the exact area. Every room has cuts; the first and last rows are almost never full width.
- Skipping acclimation. Boards laid straight off the van shrink and gap in the first month.
- No expansion gap. The floor buckles and there is no fix short of lifting it.
- Ignoring plank direction. Running planks along the longest wall or towards the main light source looks materially better.
- Keeping no attic stock. Ranges are discontinued constantly.
What the laminate box count assumes
Boxes are area plus waste, divided by the coverage printed on the box, rounded up because suppliers do not split boxes.
- Box coverage is not standard. Most laminate runs 18 to 24 ft² and LVP 20 to 30 ft², so three options are shown rather than assuming one figure. Always use the number on your own label.
- Waste defaults to 10%, rising to 15% for diagonal layouts and for solid hardwood, where board grading means more rejects.
Both unit systems. Metric mode measures in metres and m². Any coverage you enter yourself is read as m².
Figures reviewed . Every worked example on this page is checked against the calculator above.
Laminate Flooring Calculator: frequently asked questions
How many square feet in a box of laminate?
Usually 18 to 24 ft², though wide or thick planks can come in smaller boxes and LVP often runs 20 to 30 ft². The calculator defaults to 20 ft², but always check the figure printed on your box.
How many boxes of laminate do I need for a 12x15 room?
180 ft² plus 10% waste is 198 ft². At 20 ft² per box that is 10 boxes; at 24 ft² per box it is 9. In solid hardwood at 15% waste you would need 11.
How much laminate flooring waste should I add?
About 10% for a straight layout in a simple room, 15% for diagonal installs, herringbone, or rooms with many corners and alcoves. Solid hardwood usually warrants 15% because of board grading.
Does the same calculation work for vinyl plank and hardwood?
Yes. Area divided by box coverage, plus waste, is identical across laminate, LVP, engineered and solid hardwood. Only the coverage per box and the waste percentage change.
How much does laminate flooring cost?
Material runs about $1 to $4 per square foot and professional installation adds $2 to $5. A 180 ft² room is roughly $180 to $720 in material, plus $360 to $900 for fitting.
Do I need an expansion gap for laminate?
Yes. Leave a quarter to three-eighths inch around the entire perimeter and any fixed object so the floating floor can move with humidity. The gap hides behind skirting or quarter-round, and omitting it is the top cause of buckling.
Should I keep leftover laminate?
Keep one unopened box. Ranges are discontinued frequently, and a plank damaged in a few years cannot be matched. Replacing one board from attic stock is far cheaper than relaying the floor.