A 20 × 20 ft room (400 sq ft) needs 22 boxes of LifeProof vinyl plank — 440 sq ft with the standard 10% waste allowance.
About 28 rows across the largest area, last row ≈ 4.6 in wide.
| Product | Sq ft/box | Boxes | Cost |
|---|---|---|---|
| LifeProof 8.7 × 48 in | 20.06 | 22 | $1,319 |
| LifeProof 8.7 × 59 in | 25 | 18 | $1,341 |
| LifeProof 7 × 48 in | 19 | 24 | $1,359 |
| NuCore Cedar Point 7 × 48 in | 23.66 | 19 | $1,119 |
| NuCore Everwood Falls 7 × 48 in | 19.02 | 24 | $1,137 |
| NuCore Gunstock Oak 7.5 × 48 in | 22.97 | 20 | $1,374 |
| NuCore Turner Road 7 × 60 in | 23.96 | 19 | $919 |
| COREtec Originals 7 × 72 in | 21.27 | 21 | $5,222 |
| COREtec Plus 7 × 48 in | 38.03 | 12 | $2,871 |
| Shaw Paragon 7" Plus | 18.91 | 24 | $2,628 |
| SMARTCORE Pro 7 × 48 in | 16.54 | 27 | $1,331* |
* no verified price for that SKU; typical vinyl plank price used.
Source: LifeProof install guide (May 2023).
Box prices: Floor & Decor live and Home Depot/dealer listings (some cached), October 2026. Tap any price to enter your store's.
Labor: $3–$10 (This Old House, June 2026). Removal: about $1–$2 per sq ft (This Old House, 2026). Stairs, furniture moving and leveling are quoted separately.
| Product | Sq ft per box | Straight (10%) | Diagonal (15%) | Cost, straight |
|---|---|---|---|---|
| LifeProof 8.7 × 48 in | 20.06 | 22 | 23 | $1,319 |
| LifeProof 8.7 × 59 in | 25 | 18 | 19 | $1,341 |
| LifeProof 7 × 48 in | 19 | 24 | 25 | $1,359 |
| NuCore Cedar Point 7 × 48 in | 23.66 | 19 | 20 | $1,119 |
| NuCore Everwood Falls 7 × 48 in | 19.02 | 24 | 25 | $1,137 |
| NuCore Gunstock Oak 7.5 × 48 in | 22.97 | 20 | 21 | $1,374 |
| NuCore Turner Road 7 × 60 in | 23.96 | 19 | 20 | $919 |
| COREtec Originals 7 × 72 in | 21.27 | 21 | 22 | $5,222 |
| COREtec Plus 7 × 48 in | 38.03 | 12 | 13 | $2,871 |
| Shaw Paragon 7" Plus | 18.91 | 24 | 25 | $2,628 |
| SMARTCORE Pro 7 × 48 in | 16.54 | 27 | 28 | $1,331* |
22 boxes of LifeProof 8.7 × 48 in cover 441.3 sq ft, so 1.3 sq ft is left after the 10% allowance. That's less than half a box, so buy one spare box from the same dye lot if you want planks for future repairs.
Laid on a 45° diagonal the order rises to 460 sq ft (15%), or 23 boxes — 1 more box.
With planks running along the 20 ft wall you get about 28 rows across the 20 ft width, the last one about 4.6 in wide, wide enough that the room needs no balancing cut.
* No verified price for that SKU; the typical price for this flooring type is used.
The full method, material data and tips are on the main flooring calculator page.