From 
Image 1 of 6
1. Toenail decking joists into
position along the wall ledger
using a galvanized 16d nail.
Make sure the top of the joist is even
with the top of the flashing on the
wall ledger so that decking will go
on evenly. For outdoor work, use
hot-dipped galvanized nails; for
indoors, use common (not sinkertype)
nails. Start your nail before
setting the joist in position, then
hammer it in.
Image 2 of 6
2. Squeeze the joist hanger
tightly around the joist and
drive the speed prongs into
the ledger board to temporarily hold
the joist in place. Make sure the joist
is sitting squarely in the joist hanger
without gaps alongside and under
the joist.
Image 3 of 6
3. Fasten the joist hangers to
wall ledgers outdoors using
16d galvanized nails. For the
joist hanger to perform to its rated
load capacity, fill all holes in the joist
flanges with the nails specified by
the hanger manufacturer.
Image 4 of 6
4. For double shear joist hangers, toenail four galvanized 10d nails at a
45-degree angle through the hanger, the joist and into the ledger board.
Or
Image 5 of 6
5. For standard joist hangers, secure the hanger to the joist using only 1-1/2
in. long galvanized joist hanger nails. Avoid longer nails that would poke through the joist and splay out the other side of the hanger. (To hammer inside tight joist spaces,
use either short tapping strokes or hold the hammer sideways and strike the nail with the side of the hammer.)
OR
Image 6 of 6
6. Use inverted flange single or double joist hangers to install joists
at the very end of a ledger board. To avoid splitting the outside edge of
the wall ledger, predrill the holes for the 16d galvanized nails.
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