The distance between the supports holding up the plywood is the most influential factor.
5 to 15 lbs. Best for cabinet backs and light crafts. how-much-weight-can-plywood-support
Plywood is engineered by gluing thin layers of wood (plies) at alternating 90-degree angles. The distance between the supports holding up the
40 to 50 lbs. Great for subflooring and heavy-duty projects. how-much-weight-can-plywood-support
or structural-grade plywoods utilize specialized exterior glues and knot-free layers to maximize shear strength. 4. Direction of the Grain
Weight spread evenly across the surface (like books on a shelf). Plywood handles this best.