Glazing estimates counted opening by opening,
not guessed by the square foot.
Glazing is a trade where the numbers on a rough square-foot estimate rarely survive contact with the actual glass schedule. A curtain wall priced at a blended rate looks reasonable until you notice a third of the openings carry a different IGU makeup for solar control, and the spandrel panels weren't broken out from the vision glass at all. Or a storefront bid comes in short because the structural silicone glazing detail and the fire-rated assembly at the stairwell got missed entirely. At Remarkable Estimating, we treat every opening, glass makeup, and framing run as its own line item, because that's the only way a glazing number holds up once the glass schedule gets finalized.