Installation Guide
 10
1 
Preparing the grooved board edges
 □ After installing the rst end boards (pg 9), insert a Fiberon 
ArmorGuard/PhantomGT hidden fastener into the groove of 
the board, centering on joists.
NOTE: Grooved boards are not intended to be used as 
perimeter boards unless you are also installing fascia boards 
appropriately to cover the exposed grooves, or when the groove 
is against a wall or other hard structure. 
ArmorGuard/PhantomGT
Groove
Joist
2 
Securing the fasteners
 □ Secure fasteners by driving the screw fully into the joist. 
Continue installing and securing the fasteners in the center of 
each joist along the remainder of the deck board.
Screw
3 
Installing the remaining boards/rows
 □ Position the next deck board into the fasteners. It may be helpful 
to angle the board slightly to fully seat it into the fasteners.
 □ Repeat installing fasteners and positioning boards to cover 
the deck surface. See “Installing the nal end boards” (pg 9) 
for completing the deck. 
4 
Installing butt joints
 □ Where two boards butt together, allow for adequate end-
to-end board spacing and use a single Butt Joint Hidden 
Fastener to secure board ends. 
ArmorGuard/PhantomGT
butt joint fastener
Hidden Fastener Installation - Grooved Edge Decking (continued)
ARMORGUARD/PHANTOM GT HIDDEN FASTENER INSTALLATION
Side view










