Structural plywood and structural LVL Bearing Strength for Loading Normal to the Face

Plywood (and all timber) have less compressive capacity when load is applied perpendicular to the

grain, compared to when load is applied parallel to grain. The bearing or crushing strength of the plywood

may govern design where high localised point loads are applied to the plywood surface. For example, small

diameter metal castor wheels supporting high loads, on structural plywood flooring. Where bearing

strength is critical, the simplest solution is often to increase the bearing area. In the example of the small

diameter metal wheels, the use of larger diameter wheels and/or softer compound wheels will spread the

load.

Characteristic bearing strengths are not incorporated in the F rating system. Characteristic bearing strength

can be obtained from plywood manufacturers.

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