Recommended Thickness by Diameter and Depth

These are guidelines for vacuum formed and pressure formed Acrylic & Polycarbonate Domes.

Diameter 1/8″ 3/16″ 1/4″ 3/8″
2″ up to 1″ deep deeper than 1″ n/a n/a
4″ up to 2″ deep deeper than 2″ n/a n/a
6″ up to 3″ deep deeper than 3″ n/a n/a
8″ up to 3″ deep up to 4″ deep deeper than 4″ n/a
10″ up to 3.5″ deep up to 5″ deep deeper than 5″ n/a
12″ up to 4″ deep up to 6″ deep deeper than 6″ n/a
14″ up to 5″ deep up to 7″ deep deeper than 7″ n/a
16″ up to 5.5″ deep up to 8″ deep deeper than 8″ n/a
18″ up to 6″ deep up to 9″ deep deeper than 9″ n/a
20″ up to 6.5″ deep up to 9.5″ deep deeper than 9.5″ n/a
22″ up to 7″ deep up to 10″ deep up to 11″ deep deeper than 11″
24″ up to 8″ deep up to 11″ deep up to 12″ deep deeper than 12″
28″ up to 7″ deep up to 9.5″ deep up to 14″ deep deeper than 14″
30″ up to 7.5″ deep up to 10″ deep up to 15″ deep deeper than 15″
32″ up to 8″ deep up to 11″ deep up to 16″ deep deeper than 16″
34″ up to 8.5″ deep up to 11.5″ deep up to 17″ deep deeper than 17″
36″ up to 9″ deep up to 12″ deep up to 18″ deep deeper than 18″
38″ 3/16 min thickness up to 9.5″ deep up to 19″ deep deeper than 19″
40″ 3/16 min thickness up to 10″ deep up to 20″ deep deeper than 20″
42″ 3/16 min thickness up to 10.5″ deep up to 21″ deep deeper than 21″
44″ 3/16 min thickness up to 11″ deep up to 22″ deep deeper than 22″
46″ 3/16 min thickness up to 11.5″ deep up to 23″ deep deeper than 23″
48″ 3/16 min thickness up to 12″ deep up to 24″ deep deeper than 24″
49″-96″” n/a n/a 1/4″ minimum thickness Call office for help
Recommended Thickness by Depth