Installation Guide
47
HOW TO INSTALL DECKING
INSIDE MOUNT (CORNER)
»  TREX SUPPLIES (2) HG 1/2" X 8" (13 mm x 203 mm) BOLTS, NUTS, AND WASHERS.
» CUSTOMER MUST SUPPLY ADDITIONAL HG 1/2" X 8" (13 mm x 203 mm) BOLTS, NUTS, AND WASHERS.
Blocking 2"x 8"
(51 mm x 203 mm) min
Simpson
DTT2Z
Simpson
DTT2Z
Trex Bolts 1/2" x 8" (13 mm x 203 mm),
Nuts, and Washers
Front Rim
Joist
Simpson 
L70Z
Simpson 
LUS28Z
Blocking 
2"x 8"
(51 mm x 203 mm)
NOTE: 
If a L70Z is in 
this location,
it must be 
removed so 
post mount
will fit properly.
NOTE: 1/2” x 8” (13 mm x 203 mm) 
bolts must be wider (vertically) on front 
rim and narrower on side joist to avoid 
contact inside the post.










