Plywood

Select plywood by grade and intended use: A/B or A-grade faces for visible, smooth surfaces; B/C or C/D for painted or concealed work; structural grades (CDX, PS1) for load-bearing or exterior applications. Also match veneer quality, glue type (exterior vs interior), and thickness to the project’s appearance and strength requirements

Common thicknesses are 1/8", 1/4", 1/2", 3/4" and 1"; 3/4" is common for cabinets and shelving, 1/2" for drawer backs and panels, and 1/4" for underlayment or backing. Standard sheet size is 4x8 feet, but plywood is available in other sizes—choose thickness and sheet size based on span, load, and how you’ll cut and join pieces

For outdoor or high‑moisture use, choose exterior-grade plywood made with waterproof phenolic or melamine glue and rot-resistant species like marine-grade or pressure-treated plywood. Ensure edges are sealed and follow manufacturer guidelines for exposure and finish to prevent delamination and fungal decay

Veneer core plywood has alternating thin veneers glued in layers and is common for general use; hardwood-faced plywood uses a hardwood veneer on face layers for appearance; Baltic birch is a high-density, multi‑ply hardwood plywood with uniform layers, strong screw holding and minimal voids, favored for cabinetry and fixtures requiring precision

Use a fine-tooth or plywood-specific blade and score the cut line to reduce splintering, support the sheet to prevent tear-out, and predrill screw holes or use pocket screws for assembly. Sand face veneers lightly before finishing, seal edges, and use appropriate wood filler for voids; choose finishes compatible with the plywood’s face veneer

Store plywood flat and fully supported on a level surface, off the ground on evenly spaced stickers or a pallet, and keep it dry and away from direct sunlight or heat sources to prevent warping and moisture-related distortion. If stored upright, keep it tightly braced and vertical in a dry, climate-controlled space

Plywood prices vary by species, grade, thickness, and adhesive—budget options can be under $50 per sheet for thin or lower-grade panels, while specialty or high-grade sheets cost more; average prices for general-purpose sheets often fall in mid-level ranges. Higher-priced sheets typically offer better face veneers, fewer voids, stronger cores, or exterior‑rated glues