Windows

Window tools: a replacement-cost worksheet on your per-window quotes, an IRC R310 egress clear-opening check (2021 edition; local code prevails), and a U-factor energy-savings estimate on your heating degree-days and energy rate.

Replacement CostEstimate window replacement cost from the number of windows and the unit and install prices on your own quotes. No price list is stored — your numbers only.Egress CheckCheck a window against 2021 IRC R310 egress minimums — clear opening area, width, height and sill height — from your actual clear dimensions.Energy SavingsEstimate heating-season energy and dollars saved from a window U-factor upgrade, using your glazing area, old and new U-factors, degree days and rate.

Every Windows tool is calculated server-side — visible immediately — with its formula, a worked example and a reference table. Background reading is in the guides.