General

Flooring Calculator

Calculate square footage and boxes of flooring needed with waste factor included.

Check the box - typically 15–25 sq ft
180
Total Sq Ft
198
Sq Ft (w/ 10% waste)
10
Boxes Needed

1 room totaling 180 sq ft. With 10% waste: 198 sq ft ÷ 20 sq ft/box = 10 boxes. Always buy from the same dye lot - keep any extra boxes for future repairs.

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How to calculate flooring materials

Measure the length and width of the room in feet and multiply them together to get the square footage. For rooms that are not perfect rectangles, break them into smaller sections, calculate each one, and add them together. Then add your waste factor. This calculator handles the math and factors in waste for whatever flooring type you are installing.

How much extra flooring to buy

For a standard rectangular room with a straight lay pattern, 10 percent waste is the minimum. Diagonal patterns bump that to 15 percent. Herringbone or complex patterns can hit 20 percent. Tile has a higher waste factor than hardwood or LVP because cuts at the walls and around obstacles create more unusable pieces. Always order from the same lot to avoid color variation between boxes.

Flooring types and what to expect

Hardwood comes in boxes measured by square feet. LVP and laminate are the same. Tile is sold by the square foot or by the piece. Carpet is sold by the square yard, so divide your square footage by 9 to convert. Each material has different installation requirements. Tile needs thinset and grout on top of the tile itself. Hardwood might need underlayment. Factor in those extras when ordering.

Common Questions

What is the most durable flooring?

Porcelain tile and luxury vinyl plank (LVP) are the toughest options for high traffic areas. LVP handles water, scratches, and dents better than hardwood and costs less to install.

Can you install new flooring over old tile?

Yes, as long as the tile is flat, solid, and well bonded. Luxury vinyl plank and laminate float right over it. If tiles are cracked or loose, you need to fix or remove them first.

How long does it take to install flooring?

A single room with click lock LVP or laminate takes most guys half a day. A whole house of 1,500 square feet takes 2 to 4 days depending on the product and how many cuts you are making.

Does new flooring need to acclimate before installing?

Yes. Hardwood and laminate need 48 to 72 hours sitting in the room to adjust to the temperature and humidity. Skipping this step leads to gaps or buckling after installation.

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