About the flooring calculator
Laminate, vinyl plank, and engineered hardwood are sold in boxes that each cover a set area. This calculator adds a waste allowance to your room size and converts it to whole boxes, so you can compare products and prices accurately.
How to use this calculator
- Measure the room’s area, including closets you’ll floor.
- Choose a waste allowance.
- Enter the coverage per box from the packaging.
- Optionally add a price per square foot.
Worked examples
- 200 × 1.10 = 220 sq ft
- Boxes of 20 sq ft: 220 ÷ 20 = 11
Buy 11 boxes (220 sq ft).
Measurement guidance
L-shaped rooms
Split the room into rectangles and add the areas. The Garden Area Calculator works for indoor rooms too.
Acclimation
Many flooring products need to sit in the room before installation. Follow the manufacturer’s instructions.
Frequently asked questions
How much extra flooring should I buy?
Around 5–10% is common for simple rooms; diagonal layouts and many angles need more.
Can I return unopened boxes?
Many stores accept unopened returns. Check the policy before buying extra.
Do I include closets?
Include any area you’ll cover. Measure closets separately and add them.