How Much Flooring Do I Need? A Guide for Every Material

Measuring Your Space

Measure the length and width of the room at the widest points. For rectangular rooms, multiply for square footage. For L-shaped rooms, divide into rectangles, measure each, and add together. Always round up, never down. A room that measures 14 feet 8 inches is a 15-foot room for ordering purposes.

Measure into closets if you're flooring them too. Measure hallways separately. Each space gets its own measurement, and the totals are added together.

The Waste Factor: Why You Always Buy Extra

You will cut boards. Every wall edge needs a cut piece. Every doorway, vent, and obstacle creates cuts. Some cuts produce usable offcuts, some don't. The waste percentage depends on your layout pattern.

Straight or staggered layouts (the most common) waste about 10%. The boards run parallel to the longest wall, and offcuts from one row often start the next. Diagonal layouts waste 15% because every board at the wall edge is cut at an angle, producing triangular waste that rarely fits elsewhere. Herringbone and chevron patterns waste 20% or more because every piece is cut to a precise angle and length, with little room for reuse.

For rooms with many obstacles (kitchen islands, fireplaces, irregular walls), add an extra 5% on top of the pattern waste.

Comparing Materials

Laminate ($1.50-$5.00/sq ft) is the budget king. It clicks together without glue or nails, installs over most existing floors, and looks remarkably like real wood from a distance. It's not waterproof (though water-resistant options exist) and can't be refinished. Lifespan: 15-25 years.

Luxury vinyl plank ($2.00-$6.00/sq ft) has exploded in popularity because it's 100% waterproof, clicks together like laminate, and works in kitchens and bathrooms where laminate can't go. It's softer underfoot than laminate and quieter. Lifespan: 15-25 years. The main drawback is that it can't be refinished and some types dent more easily than wood.

Engineered hardwood ($4.00-$12.00/sq ft) is real wood on top with a plywood base. It handles humidity better than solid hardwood, can be floated or glued, and can be refinished 1-2 times. Looks identical to solid hardwood. Lifespan: 20-30 years.

Solid hardwood ($5.00-$14.00/sq ft) is the premium option. Can be refinished 5-8 times over its lifetime, which can extend its life to 50+ years. Must be nailed to a wood subfloor (not over concrete). Takes 2-3 days to acclimate to the room before installation.

Tile ($1.50-$10.00/sq ft) is the most durable option. Waterproof, scratch-proof, heat-resistant. The installation is more involved (thinset mortar, grout, wet saw) and professional installation is common. Porcelain is denser and more water-resistant than ceramic. Lifespan: 50+ years if installed properly.

Underlayment

Floating floors (laminate, most LVP, some engineered hardwood) need underlayment between the flooring and the subfloor. It provides cushion, sound dampening, and a moisture barrier. Standard foam underlayment costs $0.20-$0.35 per square foot. Cork underlayment costs more but provides better sound isolation.

Many LVP products now come with underlayment attached to the bottom of each plank. If yours does, you don't need a separate layer, and adding one can actually cause problems (too much cushion makes the click joints fail).

Tile doesn't use underlayment. It uses thinset mortar applied to the subfloor. On concrete, this is straightforward. On plywood, you may need a cement board layer (like Hardiebacker) between the plywood and the tile.

Transition Strips

Every doorway where your new floor meets a different floor needs a transition strip. T-moldings bridge two floors of equal height. Reducers step down from a taller floor to a shorter one. These cost $8-$15 each and are often forgotten until the floor is done and you realize the doorways look unfinished.

Count your doorways before ordering. A typical room has 1-2 transitions. A whole-house flooring job might need 8-12.