Flooring for a 20×20 Room
A 20×20 room is 400 sq ft, so buy about 23 boxes (10% waste) plus 4 underlayment roll. Set your box coverage below — it varies a lot by product.
Flooring boxes
23 boxes
Floor area
400 sq ft
Flooring to buy
441 sq ftincludes 10% waste
Boxes
23 boxes~20 sq ft per box (check yours)
Underlayment
4 rolls100 sq ft foam rolls
Flooring cost (est.)
$990~$2.25/sq ft economy laminate
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