Free Roofing Calculators That Actually Work

Free roof pitch calculator for Canadian builds. Convert between rise/run (X/12), angle in degrees and rafter length. Slope factor for accurate roof area takeoffs to NBC 9.26.

Calculate top-up depth, bag count and material cost for blown cellulose, blown fibreglass, batts. NBC 2020 9.36.2 R-60 climate-zone targets.

Size stick-built common rafters to NBC 2020 9.23 with snow load, count and 2026 lumber prices in CAD. SPF #2 / Doug-Fir catalogue.

Estimate 2026 Canadian roof repair cost by scope, covering, age, height, access, permits and disposal — itemised from a single shingle fix through structural sheathing replacement.

Free Canadian roof truss calculator. Size prefab trusses to NBC 2020, CSA O86 and TPIC 2014. Member lengths, count and delivered cost in CAD across ON, BC, AB, QC.

Estimate 2026 attic-insulation cost in Canadian dollars: material, labour and total installed price for blown cellulose, fibreglass, batts and Roxul. NBC 2020 9.36.2 R-60 targets.

Estimate Canadian 2026 chimney repair cost by line item: crown rebuild, tuck-pointing, brick replacement, above-roof rebuild, cap, flue liner, waterproofing, damper. To NBC 9.21 / ULC S635 / WETT certification with 2026 CAD trade rates.

Estimate metal roof panel count, trim lengths, and installed cost in CAD. Standing-seam, ribbed, corrugated, and stone-coated steel — sized to NBC Part 9 and CSA A123.21.

Compare 2026 Canadian roofing costs across asphalt, metal, cedar shake, slate and EPDM on the same job. Side-by-side installed cost in CAD, C$/sq ft, service life and cost-per-year.