Flooring quantity by room size
Use this table as a quick cross-check for laminate, vinyl plank or similar boxed flooring. Product coverage varies, so the exact box coverage should come from the package.
Published and reviewed: August 30, 2026 · Method: BetterHomeHabits calculator model
For rectangular rooms, calculate floor area, add an installation waste allowance, then divide by the coverage per box and round up. A 10% waste factor is a common planning input, not a universal rule.
Reference table
| Room size | Floor area | Target incl. 10% waste | Boxes at 23.5 sq ft |
|---|---|---|---|
| 8 × 10 ft | 80 sq ft | 88 sq ft | 4 |
| 10 × 10 ft | 100 sq ft | 110 sq ft | 5 |
| 10 × 12 ft | 120 sq ft | 132 sq ft | 6 |
| 12 × 12 ft | 144 sq ft | 158 sq ft | 7 |
| 12 × 15 ft | 180 sq ft | 198 sq ft | 9 |
| 15 × 20 ft | 300 sq ft | 330 sq ft | 15 |
Assumptions used
- 10% waste allowance
- 23.5 sq ft per box
- Simple rectangular layout
Why your result may differ
Real projects can differ because of product coverage, layout, waste, openings, moisture, compaction, site condition, labor scope or measurement error. Treat the table as a benchmark and use the linked calculator with the specifications for your actual project.
Methodology
The table is generated from the same transparent calculation method used by BetterHomeHabits calculators. We publish the assumptions so the numbers can be reproduced and challenged.