Continued popularity of power-driven fasteners and need for information about their holding capacity under various conditions led to a study that included type of sheathing material, volume of fastener in lumber, diameter, coating, width of crown, type of point, and angle of fasteners. Fasteners tested included staples, T-nails, common nails, modified common nails, and L-shape, serrated cleats. Moisture content of lumber at time of forming the joints had various effects on strength of joints, depending on the type of fasteners. No significant difference was found between average values for strength of joints made from. Western redcedar or plywood sheathing, except that cedar was more likely to split.
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