Subfloor Calculator
Calculate plywood or OSB sheets, fasteners, adhesive, and materials needed for subfloor installation.
Floor Dimensions
Sheets Required
42 sheets
4x8 PLYWOOD @ 3/4" thick
Floor Area
1200 sq ft
Cost Per Sheet
$42.00
Materials List
PLYWOOD Sheets (4x8)42
Subfloor Screws1440 (15 boxes)
Construction Adhesive11 tubes
Joist Information
Number of Joists31
Joist Board Feet930 bf
Rim/Band Joists140 lf
Blocking Pieces30
Weight & Handling
Total weight: 2520 lbs
Average per sheet: 60 lbs
Cost Estimate
Subfloor Sheets$1764.00
Fasteners$120.00
Adhesive$66.00
Labor$2400.00
Total$4350.00
Subfloor Thickness Guide
1/2"
12" O.C. joists, underlayment use
5/8"
16" O.C. joists, light traffic
3/4" (Standard)
16-24" O.C. joists, standard use
1-1/8" T&G
Single layer system, 24" O.C.