Don’t overdrive the fastener, stripping out the wood if you use an impact driver tool. It’s extremely important that you use the correct joist hangers, or other metal connectors, and fasteners ...

FWH Fire Wall Hanger Attaches ... and the most common I-joist sizes. Driving points easily mark slot locations on drywall without measuring. About USP Structural Connectors USP Structural ...

They’re a variation on common roof trusses — the wood ... hangers love floor trusses, too. The drywall sheets meet on the wide dimension of a 2×4, not a narrow 1.5-inch-wide floor joist.