Alternately it is not uncommon for a residen tial house to have 4 or 5 rows.
Roof truss splice.
A gang nail is basically a thin piece of metal stamped out so that many metal tangs stick out into the wood about a 1 2 or so.
Galvanized steel truss base fan wood connector plate 1 per pack 72 49 72.
It is stamped into the wood at the factory with a hydrolic press.
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Ozco 51767 ironwood 4 inch t tie plate connector 1 per pack 20 07 20.
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It is in tension and is holding the top chords of the truss against spreading.
Rafter plates are load bearing beams that support either a single rafter or a truss.
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It is because the bottom chord of a roof truss is in tension that the truss member can be as small as a 2x4.
Truss and rafter tie downs are used for wood construction and wood framing projects.
Simpson strong tie 1 1 2 in 12 gauge wood to wood triple zinc pipe rail tie.
Ozco 56620 13 1 2 in.
1 2 of lumber per splice.
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The truss companies use a gang nail to splice wood together pictured at left.
Rafter plates are almost always spliced due to the length of most structures taking precautions to insure that.
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It is not uncommon to have thirty rows or more of bracing in some buildings.
The following list gives the amount of lumber needed for each type of splice previously discussed for one row in a 100 foot building with trusses 2 on center.
The bottom chord of these roof trusses is serving as a tension tie.