Glass Thickness Calculator

Determine minimum glass thickness based on wind load, panel dimensions, glass type, and elevation with safety factor analysis.

Design Wind Speed

mph

Elevation

Panel Width

Panel Height

Glass Type

Tab to move between fields

Minimum Thickness

0.75"

Wind Pressure30.98 psf

Safety Factor1.06x

Breakage Probability82.61%

How to Use This Calculator

Enter the Design Wind Speed in mph from local building code wind maps.
Enter the Panel Width and Height in inches and the site Elevation.
Select the Glass Type: annealed, tempered, or laminated.
Review the Minimum Thickness in inches required for the design wind pressure.
Check Safety Factor and Breakage Probability to confirm the glass thickness meets code.

How the result changes with Design Wind Speed

Design Wind Speed: Design wind speed per local building code (typically 90-150 mph).
Elevation: Elevation above sea level (reduces air density and wind pressure).
Panel Width: Width of the glass panel.
Panel Height: Height of the glass panel.
Glass Type: Glass type determines allowable stress and breakage characteristics.

Identify Input Parameters
4 parameters
Design Wind Speed = 110, Elevation = 0, Panel Width = 36, Panel Height = 60 = 5 input(s) provided
Calculate Minimum Thickness
Minimum Thickness
0.75 = 0.75
Calculate Wind Pressure
Wind Pressure
30.98 = 30.98
Calculate Safety Factor
Safety Factor
1.06 = 1.06