Know What to Order Before the Truck Shows Up
You measure, we do the math the way a good estimator would: the formula on the page, the waste factor named, the answer as the honest range you should order against. No lead forms pretending to be tools, no number without a source.
Start with the One You Need Today
- Concrete Slab CalculatorYards or bags for pads and floors, ordering range built in
- Roofing Square Feet CalculatorTrue area from footprint and pitch, before you price a single bundle
- Stud CalculatorThe exact spacing math, with the corner adders labeled for what they are
- Gravel Calculator (Yards)Yardage exact, tonnage honest: 1.2-1.6 tons per yard
- Lumber Weight CalculatorWeight from actual dimensions and species bands, not nominal guesswork
- Self-Leveler CalculatorBags scaled to your average fill depth, where flat estimates fail
Browse by What You’re Building
- Concrete22 toolsSlabs, steps, curbs, and block, with the ordering allowance built in
- Roofing15 toolsTrue area from pitch, bundles and panels in purchase units
- Framing & Drywall7 toolsStud counts that match the lumber package, mud by the thousand square feet
- Gravel & Mulch8 toolsYards, bags, and honest tonnage; the quarry scale gets the last word
- Lumber4 toolsBoard feet, weight, and the nominal-versus-actual trap, stated
- Paint & Coatings3 toolsGallon counts from the real coverage range, not one flattering number
- Decking5 toolsStain and cost math done honestly; structural questions refused
What Materials Are Doing This Year
12-month producer-price change, straight from the federal PPI tables. All 21 materials, charted and sourced, on the Materials Cost Index.
Field Notes
The Roof Pitch Mistake That Breaks EstimatesYards, Bags, or Tons: How Bulk Materials Are SoldWhy Concrete Calculators DisagreeEvery formula and source on the site is auditable on the Methodology page.