Fig. 93.
The rules and diagrams, given herewith will apply to valley as well as hip rafters, and may be relied upon as being accurate if closely followed.
RULE—See [Fig. 87].
| Tongue. | Blade. |
|---|---|
| 12″ | 16″ gives run of hip. |
| 10″ | 12″ gives length of side rafter. |
| 10″ | 16″ gives length of end rafter. |
| 10″ | 20″ gives length of hip rafter. |
RULE—See [Fig. 91].
| Blade. | Tongue. | ||||
|---|---|---|---|---|---|
| Common | End | Rafter | 19″ | 12′ | |
| Longest | Jack | “ | 15 | 10/12″ | 10′ |
| 4th | “ | “ | 12 | 8/12″ | 8′ |
| 3d | “ | “ | 9 | 6/12″ | 6′ |
| 2d | “ | “ | 6 | 4/12″ | 4′ |
| Shortest | “ | “ | 3 | 2/12″ | 2′ |
Blade gives Side Cut of Jacks.
RULE—See [Fig. 92].
| Blade. | Tongue. | ||||
|---|---|---|---|---|---|
| Common | Side | Rafter | 15′ | 7½″ | 16′ |
| Longest | Jack | “ | 13′ | 8″ | 14′ |
| 6th | “ | “ | 11′ | 8½″ | 12′ |
| 5th | “ | “ | 9′ | 9″ | 10′ |
| 4th | “ | “ | 7′ | 9½″ | 8′ |
| 3d | “ | “ | 5′ | 10″ | 6′ |
| 2d | “ | “ | 3′ | 10½″ | 4′ |
| 1st | “ | “ | 1′ | 11″ | 2′ |