Countertop Weight Calculator
Estimate countertop weight, net surface area, linear load and material allowance from length, depth, thickness, cutouts and density.
Default project preview
302 lb
Gross surface area
21.3 ft²
Net surface area
17.3 ft²
Load per length
30.2 lb/ft
Fabrication area
18.1 ft²
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.
Gross area = length × depth. Net area subtracts cutouts. Volume = net area × thickness, and installed weight = volume × density. Fabrication cost uses net area plus allowance.
FAQ
Countertop Weight Calculator questions
Are sink cutouts subtracted from countertop weight?+
Yes, the entered cutout area reduces the installed material volume.
Do built-up edges add weight?+
Yes. Laminated edges, backsplashes and seams should be estimated separately or added through a higher allowance.
Can this verify cabinet support?+
No. Support design depends on cabinet construction, spans, overhangs, seams and material requirements.