Installation Guide
TOOLS REQUIRED FOR INSTALLATION: 
Tape measure, level, drill, 3/8" drill bit, wrench, safety glasses, and hearing protection.
INSTALLATION STEPS:
1.  Reinforce post mount location by installing a minimum 3" of blocking under the mounting 
location. Cut blocking to the length of the joist span opening and secure with 3" deck screws or 
nails (not provided) directly under the deck surface.
2.  Using the leveling plate as a template, mark the locations of the four mounting holes to be drilled. 
Drill four holes through the deck and blocking using a 3/8" or 7/16" diameter drill bit.
3.  Install the four leveling bolts into the post mount member. Place the leveling plate on the decking 
surface and align over the four drilled holes. Place the post mount member on top of the leveling 
plate and align the four holes. Adjust the leveling screws to ensure the post mount member is 
level.
4.  Install the four mounting bolts with washers as shown. On the underside, place the back plate 
over the exposed mounting bolts. (Use the centered holes for in–line applications and the offset 
holes for corner applications.) Secure the back plate by using the supplied mounting nuts and 
washers.
5.  Install the two guide blocks onto the post mount member. Position the lower guide block at 
the bottom of the post and secure in place by installing one of the supplied self‑drilling screws 
through the center of the guide block and into the post until firmly seated. Position the upper 
guide block so that the top of the guide block is 1" above the top of the post member and secure 
in place by installing one of the supplied self‑drilling screws through the center of the guide block 
and into the post until firmly seated.
6.  Position the post ring over the post sleeve and slide over the post mount system until the post 
sleeve is flush to the deck surface. Attach the post cap to the post sleeve with PVC glue (not 
provided).
  To install a TAM‑RAIL Straight or Stair Rail Kit to the TAM‑RAIL Post Mount, use the 1" screws 
provided in this kit. Refer to the TAM‑RAIL Straight or Stair Rail Installation Instructions for details.
Consult applicable building codes to determine permitted applications of TAM‑RAIL Railing. For code compliance information, please 
see Architectural Testing, Inc. CCRR‑0118 at tamrail.com.
IN-LINE INSTALLATION CORNER INSTALLATION
THE UPPER 
GUIDE BLOCK IS 
1" ABOVE THE 
TOP OF THE 
POST MEMBER
GUIDE BLOCK 
SCREW
GUIDE BLOCK 
SCREW
MOUNTING 
BOLTS
WASHER
REINFORCEMENT 
SCREWS
BACK PLATE
WASHER/NUT
BLOCKING
DECKING
LEVELING PLATE
LEVELING BOLT
FRAMING
POST MOUNT 
MEMBER
POST MOUNT COMPONENTS:
4" × 4" Post Sleeve (1)
Pyramid Post Cap (1)
New England Post Ring (1)
Post Mount Member (1)
Guide Blocks (2)
1" Stainless Steel Screws (13)
WOOD ACCESSORY KIT:
3/4" Self‑Drilling Guide Block screws (4)
Leveling Plate (1)
5/16" × 1" Leveling Bolts (4)
5/16" Washers (8)
Back Plate (1)
5/16" × 6" Mounting Bolts (4)
5/16" Mounting Nuts (4)
SUBSTITUTION FOR THESE COMPONENTS IS 
NOT ALLOWED AS SUBSTITUTING COMPONENTS 
COULD CAUSE A SAFETY HAZARD.
POST MOUNT INSTALLATION WOOD/COMPOSITE DECK APPLICATION 
Post Mount Kit 4" x 4" x 38" for use with all TAM‑RAIL
®
 6', 8' and 10' x 36" Railing Kits
Post Mount Kit 4" x 4" x 44" for use with all TAM‑RAIL
®
 6' and 8' x 42" Railing Kits
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