About FramingCalc
FramingCalc is a free collection of construction and landscaping calculators built for builders, contractors, and homeowners who need quick, accurate answers on the job site or during project planning.
Why We Built This
Stair layout math, grout estimating, mulch volumes, beam sizing — these calculations come up on every residential project. We got tired of scratching numbers on scrap lumber and built tools that do the math instantly, show the code requirements, and give you a clear material list.
What You Get
- Stair calculators — stringer layout, rise/run optimization, printable diagrams, landings, deck stairs, concrete stairs, treads, and railing/baluster counts.
- Mulch calculators — cubic yards, bag counts, coverage area, and rubber mulch for playgrounds.
- Grout calculators — tile grout with brand-specific bag counts (Mapei, Laticrete, TEC, Custom, Bostik) and CMU block grout fill.
- Landscaping tools — rock tonnage by type, full project cost estimator, and landscape lighting transformer/wire sizing.
- Framing & wood — wood beam span tables, deck board and fastener counts, and firewood cord/BTU calculations.
Accuracy & Building Codes
Our stair calculators reference IRC 2021 limits — maximum 7-3/4" rise, minimum 10" run, and the comfort formula (2R + T). Material weights for rock, mulch, and grout are sourced from manufacturer spec sheets. That said, every project is different: always verify calculations against your local building code and consult a licensed professional for structural work.
Free, No Account Required
Every calculator on FramingCalc is 100% free with no sign-up, no paywall, and no usage limits. The site is supported by affiliate links to tools and materials we actually recommend.
Ready to get started? Browse all calculators or check out our stair building guide.