Flooring for a 12×20 Room
A 12×20 room is 240 sq ft, so buy about 14 boxes (10% waste) plus 3 underlayment roll. Set your box coverage below — it varies a lot by product.
Flooring boxes
14 boxes
Floor area
240 sq ft
Flooring to buy
264 sq ftincludes 10% waste
Boxes
14 boxes~20 sq ft per box (check yours)
Underlayment
3 rolls100 sq ft foam rolls
Flooring cost (est.)
$594~$2.25/sq ft economy laminate
Doing this for work? Estimate the whole job in minutes.
JRIQ turns plans and site photos into full material + labor estimates with AI — built by the team behind these calculators.
Try it free →
Want the full guide — tools, step-by-step, common mistakes and FAQ? See the Flooring Calculator.