Free contractor tools & calculators.
Real calculators — no fake "download" buttons. Estimate materials for your Vancouver, WA or Clark County project before you buy, and see the math for free. No email required — and installable on your phone to work offline.
Pick a calculator. Works offline.
Add to your home screen — every calculator works offline in the field.
Every estimate CRM Services, LLC writes starts with the same arithmetic you'll find here: how many gallons for that bedroom, how many sheets of drywall for the garage, how many squares of roofing on a 6/12 pitch, how many yards of concrete for the pad. We built these calculators for homeowners, realtors, and property managers across Vancouver, WA and Clark County who want a real number before they call anyone — and for the crew that wants to check the math at the saw.
Each tool shows its formula and lets you change the assumptions (waste, coverage, bag size) so the answer fits your job, not an average one. When you're done, the same numbers can go straight into a free line-item estimate from the crew that does every trade under one contract. Not sure what a term means? Our remodeling glossary defines every one used here, and the resource library has cost guides and maintenance checklists for the PNW. Planning a rental turnover? Start with the flooring and paint tools — see how we work with property managers and real estate agents.
Plan your project
For homeowners, realtors & property managers scoping a job — estimate materials and budget before you buy.
Interior Paint Calculator
One room, per product — wall color, ceiling flat, trim semi-gloss — by coats and coverage.
Open tool →Exterior Paint Calculator
Whole house, by color scheme — body, trim, accent — with gables, eaves and siding texture factored in.
Open tool →Drywall Calculator
Sheets, joint compound, screws and tape — by room size and sheet type.
Open tool →Flooring Calculator
Boxes of LVP, laminate, hardwood or tile — or square yards of carpet — for up to 4 rooms.
Open tool →Roofing Calculator
Roof area, squares, bundles, underlayment and tear-off weight — from footprint and pitch.
Open tool →Concrete Calculator
Cubic yards and bags for slabs, footings, post holes, and stairs.
Open tool →Mulch, Gravel & Topsoil Calculator
Cubic yards, bags, and truck weight for beds, paths, and fill.
Open tool →Stair Calculator
Risers, treads, total run, stringer length and angle from your floor-to-floor height.
Open tool →Feet-Inches Calculator
Add or subtract lengths, convert decimals to fractions, and get area — to the nearest 1/16".
Open tool →CFM Calculator
Required CFM by room size and air changes per hour — or whole-system CFM by tonnage.
Open tool →Dumpster Size Calculator
Debris volume, weight, and the container size that fits your project.
Open tool →Built for the person standing at the saw.
Dimensioned, code-checked, installable on your phone to work offline. The version we wished existed:
- Stair stringer (pro) — dimensioned layout + code checks
- Feet-inch keypad field calculator with a tape
- Rafter & pitch · on-center layout · baluster spacing
- Cut-list optimizer · tile · caulk & sealant · slope & grade
Missing a tool? Tell us — the most-requested one gets built next.
Skip the math — get a real estimate.
Use the tools to plan, then let one licensed crew handle it. Free onsite consultation, line-item quote.