Every unit is a small bill of materials
An insulated unit isn’t one item – it’s two or three panes, a spacer bar of a given width, a gas fill, a low-e coating on one face, maybe a sandblast on another. Get one of those wrong on the quote and you’ve lost margin; get one wrong on the floor and you’ve made the wrong unit. Multiply that by a day’s order book and “keeping it straight” is the whole job.
Capturing multi-pane orders - pane build-ups, 12 vs 16 vs 18 mm cavities, argon or krypton fills, warm-edge spacer types, per-pane coatings and treatments
Pricing complex assemblies correctly - components and assembly schemas drive the figure, not a flat per-square-metre rate that quietly loses you money on a triple unit
Confirming progress pane by pane - so an order marked "finished" really is finished, not "mostly, two lites still in the press"



