FOSTERTools

Every tool for the job.
One membership.

Pro-grade calculators for builders, trades and home projects. Fast, offline once opened, and they print a clean report.

ALL TOOLS

OPEN Duct sizeCFM to round or rectangular duct, by material and velocity. OPEN Roof pitchRise and run, angle, or measure with your phone. Squares with waste. OPEN Conduit bendOffsets, saddles, kicks, rolling offsets and stub-ups with shrink. OPEN AsphaltTons to order from area and depth, with cost and truckloads. OPEN SealerGallons and 5-gallon pails for one or two coats. OPEN PaintGallons for a room by finish and coats, with primer. OPEN Baker’s %Hydration, starter and salt percentages, and recipe scaling. IDEAS Suggest a toolTell us the calculation you still do by hand.