Scoping Tool · Curtain Wall & Facade Glazing
FREE Commercial Curtain Wall Panel Calculator
Enter building dimensions to generate a live facade grid. You can view individual panel sizes alongside total mullion linear footage for your project.
Curtain wall is built from a repeating grid of vertical mullions and horizontal transoms, infilled with vision glass (the see-through panels) and, at each floor line, opaque spandrel panels that hide the slab edge and ceiling plenum. This tool distributes your target module width evenly across the facade and builds the grid from there — adjust any field and the elevation updates live.
Standard unitized systems typically run 4–6 ft on center.
Set to 0 for an all-vision-glass facade with no opaque band.
Vision glass
Spandrel
Panel Grid
12× 4
Bays across × floors
Total Panels
96units
Vision + spandrel
Total Glass Area
720sq ft
Vision glass only
Mullion + Transom
856lin ft
Total structural frame length
Actual module width
5.0 ft on center
Individual vision panel
5.0 × 8.5 ft
Moving from estimation to installation?
Landmark converts rough architectural concepts into approved shop drawings. Our project managers handle the load engineering and place the final material orders.
This calculator distributes an even module grid across a flat facade for scoping purposes only. It doesn't account for corner conditions, existing structural grid lines, thermal movement joints, wind/seismic load requirements, or irregular facade geometry — all of which affect a real curtain wall design. A licensed engineer must review and stamp the final structural design before fabrication.
