Quality Control
We carefully inspect every piece of glass we work with. The U.S. National Standard indicates that imperfections unseen under normal lighting conditions within 11 feet are acceptable. However, AGI works hard to exceed those standards. There are times that small inclusions, light scratches, glass seeds, and air bubbles will appear in the float glass manufacturing process, which maybe acceptable within the U.S. National Standard. We do our best to eliminate imperfect glass and prevent manufacturing flaws.
Tolerances
Glass Weight & Standard Cutting Tolerances
Thickness |
Weight |
Rectangles |
Shapes |
1/8" |
1.6 lbs/ sf |
+ 3/32" |
+ 1/8" |
3/16" |
2.3 lbs/ sf |
+ 3/32" |
+ 1/8" |
1/4" |
3.2 lbs/ sf |
+ 1/8" |
+ 1/8" |
3/8" |
4.9 lbs/ sf |
+ 1/8" |
+ 3/16" |
1/2" |
6.5 lbs/ sf |
+ 1/8" |
+ 3/16" |
3/4" |
9.0 lbs/ sf |
+ 3/16" |
+ 3/16" |
For glass over 50 sf or over 100" in length, add 1/8"