Specification
C-FS11 © 2011 SIMPSON STRONG-TIE COMPANY INC.
Simpson Strong-Tie
®
Fastening Systems
99
EB-TY
®
: HIDDEN DECK FASTENING SYSTEM
Installation Information
If you have questions about which EB-TY
to use, contact Simpson Strong-Tie.
EB-TY
biscuit fastener
Second deck board
fastened with EB-TY
and construction
adhesive applied to
top of fl oor joist
Fasten one side of fi rst deck
board using screws and plugs
#7x 2
1
⁄
4
" trim
head screw
angled at 45°
Deck boards
Slots cut with
biscuit joiner
Floor joist
• As with all decking materials, please
consult manufacturer’s installation
instructions for deck height requirements
and deck board spacing.
• All slots for the EB-TY’s (except for the
316TT) can be cut using a #20 setting with
a biscuit cutter/plate jointer or router with
5
⁄
32
" slot cutter. Decking can be grooved the
entire length of the board.
• Always butt boards over a joist. One method
for installing butt ends is to cut the keel off
the bottom of an EB-TY, slot the board ends,
and insert the EB-TY. Another, more reliable
method is to face-screw and plug.
Plug Diameter
(in.)
Plug Length
(in.)
Count
Quantity
Model No.
3
⁄
8
7
⁄
16
100 WDPLUG-100
Ipê Wood Plugs
FEATURES:
• Made of high quality Ipê and tapered for ease of use
• For use on decks using the EB-TY
®
system (fi rst boards, aprons, etc.); also stairs, railings
Installation Process
1. Fasten the fi rst board using construction adhesive and screws, then cut
slots where the board intersects joists using a
5
⁄
32
" router bit or plate joiner
(biscuit cutter #20) and install the fi rst EB-TY fasteners. Do not use
construction adhesive with composite decking (see note on the right).
2. Cut slots in the next board where it intersects the joists.
3. Apply a bead of construction adhesive to the top of each joist and install the new
board so that the slots fi t over the EB-TY fasteners installed in the fi rst board.
4. Insert EB-TY fasteners into each slot in the exposed
edge of the board and fasten with screws.
5. Repeat the process until all boards are installed.
Refer to the installation instructions (included) for more
information. Consult composite decking manufacturer’s or
wood supplier’s installation instructions for deck height
requirements and deck board spacing.
Pre-grooving the entire length of the deck board is a
time-saving alternative to individual grooves made with
a router or plate joiner. Some types of composite lumber
are available with grooves as an added feature. Have your
lumber yard use the schematic on the right to pregroove
boards to accept EB-TY fasteners.
*For model numbers TP015 and 316TT screws are to be driven at a 90° angle to the board face.
Bring the schematic below to your lumber yard. They will use it
to pre-groove your decking material to accept EB-TY fasteners.
0.500"
0.163"
Cut groove at center of material thickness
Construction adhesive is not
recommended when installing
composite deck boards as some
adhesives will have an adverse
reaction upon contact with
certain plastics.
!


