3
/
4
˝ Expansion Gap
on both deck-board-
length sides of post
1
/
8
˝ Expansion Gap
on both deck-board-
width sides of post
3. FINISH TRIM
First step is to measure and miter cut your
G-Trim and Fascia. Fit G-Trim’s open channel
over deck board overhang and secure to frame
4˝ from each end and every 16˝ using 1
1
/
4
˝ self
tapping screws and screw plug
(Illustration
3a)
. Butt Fascia Board up to bottom of G-Trim
and attach to joist 4˝ from each end and every
16˝ using 1
1
/
4
˝ self tapping screws and screw
cap. Slide your Post Skirts over each post
(Illustration 3c)
.
45º corner cuts for
G-Trim & Fascia Board
Mitering corners
3b
G-Trim & Fascia Board
secures to joist as
shown in illustration 3a
3c
Deck Board Expansion Gaps around
Posts and Post Skirt installation
Post Skirt slides
down post to
cover expansion
gaps
G-Trim hides Deck Board
Expansion /Contraction
G-Trim
3a
Deck Board
Rim Joist
Fascia Board
Deck Board Overhang
(See chart 2d for measurement)
(Butt G-Trim to
Stair Riser. Do not
use in foot-traffic
areas where it could
cause tripping.)
1
1
/
4
˝
Self Tapping
Screws
Drilled
3
/
8
˝ hole