| Size | A | B | X | Y |
| 7" | 4 3/4" | 4 3/4" | 10 1/2" | 10 1/2" |
| 8" | 4 3/4" | 4 3/4" | 10 1/4" | 10 1/4" |
| 10" | 5 1/2" | 5 3/4" | -- | -- |
| 12" | 6 1/8" | 6 1/4" | 13 7/8" | 14" |
| 14" | 6 1/2" | 6 7/8" | 14 7/8" | 15 1/4" |
| 16" | 7 1/4" | 7 3/8" | 16 1/2" | 16 1/2" |
| 18" | 9" | 8 1/2" | 20 1/8" | 21 7/8" |
| 20" | 9" | 8 3/8" | 20 1/4" | 21 3/4" |
| 22" | 8 1/2" | 9 3/4" | 20 3/8" | 21 5/8" |
| 24" | 9 1/2" | 9 3/4" | 21" | 21 7/8" |
| 26" | 10 1/4" | 10 1/4" | 21 1/2" | 22 3/4" |
| 28" | 9 3/4" | 10" | 21 1/2" | 22 3/4" |
| 30" | 9 3/4" | 10" | 23 3/4" | 24" |