Staple holding strength of furniture frame joints constructed of plywood and oriented strandboard

Abstract

Staples are common in the construction of upholstered furniture. Staples are most common for the attachment of fabric to the frame, but they are also now being used in the construction of the frame itself because they provide a rapid and convenient method of constructing joints. The primary objective of these tests was to develop basic strength data for staple holding strength in both plywood and oriented strandboard (OSB) that could be used in the product engineering of furniture frames constructed of these materials. Results of the tests showed the staple holding strength from the face was at least 50 percent higher than that from the edge of plywood and OSB. The results of lateral holding of staples on edge of plywood and OSB indicated that the number of staples was nearly proportional to the strength. In the gusset plated stapled moment resisting joints, results showed that the larger gusset dimension and higher number of staples were the key factors in increasing the overall strength of joints. Furthermore, application of glue in the gusset plates could at least double the moment resisting strength of such joints.