125"
(317,5 cm)
NH as
temporary
supports
OO as
temporary
support
23
RAFTER ASSEMBLY JIG
PARTS REQUIRED:
x8
FINISH
Build a
Jig
to ensure all
Rafters
are assembled the same.
Mark a straight line on the
Floor
from corner to corner
(Fig. A)
or on sill
plates to fit measurements
(Fig. B)
.
Screw blocks in place to measurement shown.
Make sure blocks are square and at 125" (317,5 cm)
You have finished building a
Rafter Jig
.
2
3
BEGIN
¸
1
1-1/4" (3,2 cm)
Chalk Line
Square
Fig. B
Fig. A
125'
(317.5 cm)
Flush
GBB
GBB
OO
NH
NH
GBB
GBB
Flush
DOOR
18-1/2°
(2) 1-1/4" (3,2 cm)
Screws per block
1 x 3 x 7-1/2" (2,5 x 7,6 x 19 cm)
x4
GBB
125'
(317.5 cm)
Rafter jig on wood foor
Rafter jig on concrete slab
and sill plates
22-3/4'
(57,8 cm)