Moment resistance of corner joints connected with different RTA fasteners in cabinet construction

Abstract

The fasteners used in case construction have a profound effect oil the appearance, strength, and durability of cabinets. Strength and performance data, however, are largely lacking for most of the proprietary fasteners, specifically for ready-to-assemble (RTA) fasteners and fastening systems used ill cabinet construction. Tests were carried out to determine the bending moment resistance of corner joints connected with different types of RTA fasteners so that the structure can safely resist the loads imposed upon them in service. Laminated particleboard and laminated medium density fiberboard (MDF) corner joints were tested under compression and tension loads. Results indicated that material type, loading type and fastener type have a significant effect on the strength of RTA connected joints. In general, tensile strength was greater than compressive strength for all types of RTA connected corner joints. Results also indicate in both tension and compression tests, laminated MDF corner joints were an average of 22 percent stronger than laminated particleboard corner joints. The joints constructed with MDF and the trapez connector with metal parts produced the highest strength values; the rafix joints constructed with particleboard were the weakest joints evaluated.