SHIPLAP FABRICATION
#1
GRAY
#2/4
DARK
ORANGE
#2/4
DARK
ORANGE
FGK
Duct Knife
#3
ORANGE
#5
BLUE
W1
H1
W2
H2
Work left to right facing the factory-made female
shiplap edge as your base edge for a standard
4-foot deep ductboard section.
Set the FasGroov Square on top of the ductboard.
Place the ruled edge of the square flush against the
base edge of the board.
Locate your desired inside duct width dimension (W1)
on the ruled edge of square and move the square
along the board base to align your width dimension
with the right edge of the previous cut made with the
#1 Tool. Place the left side of the FasGroov #2/4 Tool
flush against the arm of the square and push the #2/4
tool along the arm’s length to produce a right hand
shiplap groove.
Place the FasGroov #1 Tool flush against the left
edge of the ductboard. Push the tool along length of
left edge to produce a female shiplap groove.
#1 TOOL
#2/4 TOOL
16
17
CUT
FLAP
Locate your desired inside duct height dimension
(H1) on the ruled edge of the FasGroov Square and
move square to the right along base of ductboard to
align your height dimension with the right edge of the
previous cut made with the #2/4 Tool. Place the left
side of the FasGroov #3 Tool flush against the arm of
the square and push the #3 tool along arm’s length to
produce a left hand shiplap groove.
#3 TOOL