Luxury Vinyl Plank (LVP) Calculator: How Many Planks & Boxes Do I Need? (2026 Cost Guide)
Waterproof click-lock vinyl planks for kitchens, basements, rentals and whole-home flooring.
Luxury vinyl plank is the fastest-growing DIY flooring in North America: it's waterproof, floats over most existing hard floors and cuts with a utility knife. Planks click together with no gap, but you need a 1/4"–3/8" expansion gap around the room perimeter (hidden by baseboard). Most boxes cover 20–24 sq. ft, so always check the coverage printed on the box.
1Measure the space
2Board size & layout
Recommended: 10% for straight/offset, 15% for diagonal & herringbone.
3Packaging & price
Printed on the box. 0 = sold individually.
Your Luxury Vinyl Plank (LVP) estimate
Area incl. waste
198 sq. ft
planks needed
85
boxes to buy
9
Material cost
$629
- DIY — materials only$629
- Installation labor (pro)$360 – $900
- Hire a pro — total installed$989 – $1,529
Labor at $2–$5 per sq. ft (US average). Doing it yourself saves roughly $360–$900.
Material shopping list
| Luxury Vinyl Plank (LVP) (7" × 48")85 planks · 209.7 sq. ft purchased | 9 boxes |
| Underlayment (100 sq. ft rolls)Skip if the planks have a pre-attached pad | 2 rolls |
| Quarter-round / shoe moldingCovers the 1/4"–3/8" expansion gap | Measure perimeter |
180 sq. ft · Offset / Brick · 10% waste. Buy all boxes from the same lot.
How many planks do I need? Quick-reference table
Based on 7" × 48" planks with 0" joints, 23.3 sq. ft per box and $3.00/sq. ft material. "Offset / Running bond" uses 10% waste; diagonal/herringbone uses 15%.
| Size | Area + 10% | planks | boxes | planks @ 15% | Material | Installed (pro) |
|---|---|---|---|---|---|---|
| 10×10 ft (100 sq. ft) | 110 sq. ft | 48 | 5 | 50 | $350 | $550–$850 |
| 12×12 ft (144 sq. ft) | 158.4 sq. ft | 68 | 7 | 71 | $489 | $777–$1,209 |
| 15×12 ft (180 sq. ft) | 198 sq. ft | 85 | 9 | 89 | $629 | $989–$1,529 |
| 20×15 ft (300 sq. ft) | 330 sq. ft | 142 | 15 | 148 | $1,049 | $1,649–$2,549 |
| 20×20 ft (400 sq. ft) | 440 sq. ft | 189 | 19 | 198 | $1,328 | $2,128–$3,328 |
The luxury vinyl plank (lvp) formula, step by step
- Measure the area. Multiply length × width in feet. Measure each section separately and add them for L-shapes.
- Add waste. Add 10% for straight or offset layouts and 15% for diagonal or herringbone.
- Find coverage per plank. (plank length + joint) × (plank width + joint) ÷ 144 = sq. ft per plank.
- Count planks. Divide the area including waste by the coverage per plank and round up.
- Convert to boxes. Divide the area including waste by the sq. ft per box and round up to whole boxes.
Worked example — a 15 × 12 ft area is 180 sq. ft. Adding 10% gives 198 sq. ft. Each 7" × 48" plank with a 0" joint covers 2.333 sq. ft, so you need 85 planks — 9 boxes at 23.3 sq. ft each.
Luxury Vinyl Plank (LVP) cost guide (2026)
- Material: $1.75–$6.00 per sq. ft (calculator default $3.00).
- Professional labor: $2–$5 per sq. ft. Floating click-lock install. Removing old flooring, leveling and new baseboards/quarter round add $1–$4 per sq. ft.
- Typical 15×12 project: $629 DIY vs. $989–$1,529 professionally installed.
Pro tips for luxury vinyl plank (lvp)
- Acclimate boxes in the room for 48 hours at normal living temperature before installing.
- Stagger end joints at least 6–8 inches between rows and avoid repeating 'stair-step' patterns.
- Undercut door casings with a jamb saw so planks slide underneath for a clean finish.
- Use the off-cut from the end of one row to start the next row — it keeps waste near 5–10%.
Luxury Vinyl Plank (LVP) FAQ
How many boxes of vinyl plank flooring do I need?
Multiply room length by width, add 10% for waste, and divide by the sq. ft per box. A 12×15 ft room (180 sq. ft) needs 198 sq. ft — 9 boxes of 23.3 sq. ft.
Does LVP need an expansion gap?
Yes. Even though planks click together tightly, leave a 1/4"–3/8" gap at all walls, cabinets and fixed objects so the floor can move with temperature changes.
How much does it cost to install luxury vinyl plank?
LVP costs about $1.75–$6 per sq. ft for material. Professional installation adds $2–$5 per sq. ft, so a 180 sq. ft room typically totals $900–$2,000.
Can I install LVP over tile?
Usually yes, if the tile is flat and grout lines are shallower than about 1/8". Deep grout joints should be skim-coated with floor patch first so they don't telegraph through.