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Old metal plate wood truss

Old metal plate wood truss

Old metal plate wood truss

(OP)
I came across these trusses today in a house built in 1967. I have seen similar trusses that use double shear nailing with cinched nails. These trusses were nailed from both sides with T-head nails about equal to a 3d or 4d common nail. Rather thin steel plates and many nails placed close to end joints. The trusses appear to be weak, but have not failed.

I assume the T-head nails were an early pneumatic nail. Is anyone familiar with the nails or the truss construction?

RE: Old metal plate wood truss

Looks totally home-made to me.

Lousy plate placement, no double cut on the webs, way too few fasteners. And those aren't truss plates - Just pieces of galvanized metal.

RE: Old metal plate wood truss

Lousy workmanship.

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