Size and operation
A standard rectangle, large picture window, double-hung, casement, specialty shape, bay or bow uses different glass, hardware, frame and labor. Large units also change handling and freight.
Frame and glass
Vinyl, aluminum, fiberglass and wood-clad systems carry different profiles and option sets. Double- or triple-pane glass, coatings, tempering, laminates, tints, grids and screens can change the total.
Insert or full frame
Insert replacement may reduce disruption when the existing frame is sound. Full-frame work can add removal, waterproofing, substrate repair, trim and finish labor but may solve conditions an insert cannot.
Freight and installation
Crating, delivery class, access, unloading, floor level, equipment, staging, permits and finish scope should be listed separately instead of buried inside a broad allowance.
Turn the guide into a real opening schedule.
Keep every dimension, option, pressure, document, and delivery note connected to the same opening ID.
Start the configurationQuestions about this topic
Why is there no universal cost per square foot?
Square area does not capture operation, hardware, frame, glass, minimum charges, specialty geometry, packaging, freight or installation. A sourced supplier formula can be used when available; otherwise the configuration requires review.