Installation Guide
5
The most recent installation instructions can be found on our website. Please visit berondecking.com or call Consumer and Technical Support at 800-573-8841.
Surface fastening and fascia instructions
All brands of Fiberon decking may be surface fastened. 
Sufciently long annular thread, ring shank, and spiral shank 
nails, all have excellent holding power and produce good results; 
however, screws have superior holding power. Use only screws 
designed for composite decking. Plain, galvanized surface 
fasteners are not recommended. Do not use traditional bugle-
head screws. Relax decking can be fastend using common deck 
screws or pneumatic nails.
For best results, use either stainless steel composite deck screws, 
color-matched stainless steel decking screws, or the Cortex
®
hidden fastener system. These screws are engineered specically 
to work with composite decking and prevent mushrooming, 
resulting in better looking nished projects. Screw heads must be 
ush with board surface or countersunk for color matched Cortex 
plugs. Pre-drilling is recommended for all surface fasteners, and is 
necessary for end of board screw holes and cold climates to prevent 
immediate or eventual end splitting. Pre-drilling all holes will result in 
better looking nished projects. Use caution to avoid overtightening 
fasteners, or it will induce cracking at board ends and could lead 
to eventual cracking around other fasteners. Do not surface fasten 
within 1-1/2 in. (4 cm) of the end of a board or 1 in. (3 cm) from the 
side of the board. Relax deck boards can be fastened at 1/2 in. on 
ends and sides.
Tip: Straight rows of fasteners look cleaner and less noticable than 
uneven rows. White chalk, straight boards, or string lines can be 
used as guides for installing fasteners.
Joist
Deck
Deck
Proper installationDo not toe-nail
90-Degrees
Deck Board
Joist/
Blocking
Joist/
Blocking
Joist
Deck Board
Deck Board Deck Board
1-1/2 in. (4 cm) from board end
(.5 in. for Relax Decking)
Deck Board #2
Deck Board #1
Added Joist/Blocking
6
5
Fascia is intended as a non-structural covering for rim joists, risers, 
and stringers. Install screws at a maximum 12 in. (30 cm) interval, 
with three screws across the face at each interval. For Paramount 
Decking, also apply a zigzag bead of high quality exterior adhesive 
to the entire length of the back (smooth side) of the board, within 
2 in. (5 cm) of the edges and ends. Do not overtighten screws, as 
buckling and cracking may result. In temperatures about 50° F (10° 
C), install with 1/8 in. (3 mm) spacing between the edges and ends. 
In temperatures below 50° F (10° C), leave 3/16 in. (5 mm) space 
between edges and ends.
Always drive in surface fasteners at a 90˚ angle to the decking 
surface with two fasteners at every joist location. Do not toe-nail 
screws into the joist. Instead, place blocking/sister joists to allow 
perpendicular installation of surface fasteners at board ends. 
Fasteners recommended for use with Fiberon grooved deck 
boards include Phantom Hidden Fasteners and Phantom End Clip 
Hidden Fasteners. 
Check berondecking.com for the most up-to-date fastener 
recommendations, including specic instructions for square edge 
and grooved Paramount deck boards.
Installing fascia board 
12 in.
maximum










