Access Doors Rough Opening

Door Size (Width x Height)	Rough Opening (RO) (Width x Height)
6 x 6	6-1/4 x 1-1/4
8 x 8	8-1/4 x 8-1/4
10 x 10	10-1/4 x 10-1/4
12 x 12	12-1/4 x 12-1/4
12 x 18	12-1/4 x 18-1/4
12 x 24	12-1/4 x 24-1/4
14 x 14	14-1/4 x 14-1/4
16 x 16	16-1/4 x 16-1/4
16 x 20	16-1/4 x 20-1/4
18 x 18	18-1/4 x 18-1/4
18 x 24	18-1/4 x 24-1/4
20 x 30	20-1/4 x 30-1/4
22 x 22	22-1/4 x 22-1/4
22 x 30	22-1/4 x 30-1/4
24 x 24	24-1/4 x 24-1/4
24 x 30	24-1/4 x 30-1/4
24 x 36	24-1/4 x 36-1/4
24 x 48	24-1/4 x 48-1/4
30 x 30	30-1/4 x 30-1/4
30 x 36	30-1/4 x 36-1/4
32 x 32	32-1/4 x 32-1/4
36 x 36	36-1/4 x 36-1/4

All dimensions are inches
Rough opeing is door size +1/4" min to 1/2" max
Additional sizes available, call for more information