Construction Calculators
Professional material estimators built for general contractors. Calculate plywood and sheetrock needs accurately to keep jobs on budget and on schedule.

Plywood Calculator
Estimate sheet count and material needs for plywood projects.
Calculate exactly how many plywood sheets you need before heading to the lumberyard. This calculator accounts for waste, supports multiple sheet sizes (4x8, 4x10, 5x5 Baltic Birch), and provides visual layout previews to help you plan your cuts.
Sheetrock Calculator
Calculate drywall sheets for walls and ceilings.
Get accurate estimates for your drywall needs and minimize butt joints. Whether you call it drywall, Sheetrock, or gypsum board, this calculator helps you order the right amount the first time.

Frequently Asked Questions
Common questions about using our construction calculators and estimating materials accurately.
How accurate are these construction calculators?
These calculators use industry-standard formulas and include adjustable waste factors (10-20%) based on project complexity.
They're built with real-world construction experience to account for cuts, mistakes, and material defects that happen on every job.
Do the calculators work for commercial projects?
Yes. Both calculators support custom sheet sizes and can handle projects of any scale. Whether you're doing a single room or a multi-unit building, just input your total square footage and adjust the waste factor based on complexity.
Should I subtract door and window openings from my measurements?
For sheetrock, no, unless you have massive window walls. You typically cut around openings from full sheets anyway, so that material becomes part of your waste buffer. For plywood subflooring, you generally measure the full floor area.