Weber Genesis Silver-B Permamount NG 051701 Owner's Manual page 18

Typical installation of the base for an existing
concrete patio, new pad or wood deck
(continued)
Method 4 - Wood deck
After assembling the base according to the assembly
instructions, position the base assembly on your deck
for anchoring.
CAUTION: Combustible materials should never
be within 24 inches of the top, bottom, back or
sides of the barbecue. Do not locate under
overhead combustible construction.
CAUTION: For a deck installation, it is
recommended to anchor one screw into a joist.
Note - With the lid open, the depth of the barbecue
is 28 inches, front to back.
Anchor the base to the deck. We recommend using a
minimum of a 3/8 inch x 1 1/2 inch lag bolt with a 3/8
inch flat washer. Figure 9.
Note - Use a 3/16 inch drill bit for drilling a pilot hole
for a 3/8 inch lag bolt.
Figure 9
3/8 inch x 1 1/2 inch lag bolt
3/8 inch flat washer
Mount plate
Drilled hole
WARNING: Whichever method used, the base
must be bolted down (anchored) at a minimum of
four anchoring points (two per side) prior to
barbecue assembly. One anchor in each corner of
the base plate. Figure 10.
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4
3
Figure 10