How Much Flooring Do You Need? The Complete Buying Guide
Buying too little means a trip back to the store and potentially mismatched lots. Buying too much wastes money. Here is the sweet spot.
Measure your room length × width for total square footage. Add 10% for standard installation waste (straight layout). Add 15% for diagonal patterns or rooms with many cuts (hallways, closets, around obstacles). Always round up to the nearest full box — you cannot buy partial boxes. A 180 sq ft room at 10% waste needs 198 sq ft. If boxes contain 24 sq ft each: 198/24 = 8.25, round up to 9 boxes.
Cost Comparison by Material
Laminate installed: $3-8/sq ft (15-25 year lifespan). Luxury vinyl plank: $4-10/sq ft (15-25 years). Engineered hardwood: $8-15/sq ft (20-40 years). Solid hardwood: $10-18/sq ft (50-100 years). The cheapest per year of life: solid hardwood at $0.15-0.36/sq ft/year versus laminate at $0.12-0.53/sq ft/year. The most expensive option upfront is often the cheapest over the life of the home.