Subfloor Calculator
Estimate subfloor sheets, construction adhesive, screws, fastener boxes, purchased coverage and material cost for a rectangular floor.
Default project preview
11 sheets
Floor area
300 ft²
Layout sheets
10
Adhesive tubes
2
Fasteners
550
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Order area = floor area × waste factor. Sheets = round up (order area ÷ sheet area). Adhesive and fasteners are rounded to full purchasable units.
FAQ
Subfloor Calculator questions
Which direction should subfloor sheets run?+
Panel orientation and joint staggering should follow the structural design and manufacturer instructions.
Does this account for tongue-and-groove coverage loss?+
Use the manufacturer effective sheet dimensions when they differ from nominal size.
Is construction adhesive always required?+
Assembly details vary. Follow the approved fastening and adhesive specification.