Storefront glazing has to satisfy more than the drawing. It carries accessibility requirements, building code, and the practical business of getting people through a door all day without the hardware giving out.
Entrance systems are the part to specify carefully. A high-traffic door sees thousands of cycles a year, and the difference between commercial and residential-grade hardware shows up within months rather than years.
Curtain wall and storefront framing are often decided on appearance, but thermal performance is what shows up on the heating bill. Thermally broken frames cost more up front and are difficult to retrofit later.
Coordination matters as much as the products. Glazing usually sits between the building envelope and the interior fit-out, so its schedule affects trades on both sides.
