What Is Cat Plywood

And exterior applications such as fences signs boats.

Dog eat dog band. Youll see more repaired knots and voids on a sheet and some defects will be left as is. Us voluntary product standard ps 1 09 structural plywood ps1 09 structural plywoodps 1 09 is a product standard covering the requirements for american plywood intended for structural loadbearing use. Plywood bonding types.

Plywood grades c d. Apa 000 ps 1 09 38 cat use where appearance of both sides is important for interior applications such as built ins cabinets furniture partitions. Structural i rated sheathing panels carry the same span ratings as rated sheathing panels of the same thickness eg 1532 performance category perf cat structural i and 1532 perf cat rated sheathing are both span rated at 3216 and deliver the same capacity for most applications.

Most plywood products suitable for use in woodworking projects are marketed as 14 inch 12 inch 58 inch or 34 inch thicknesses but its important to realize that these are nominal sizes not actual dimensionsjust as construction lumber nominal sizes differ from actual dimensions the same is true of plywood sheet goods. It includes the wood species veneer grading. Apas us ps 1 and ps 2 plywood have been tested to en 717 1 and formaldehyde levels already meet the requirements for the e1 classification limit.

Performance category and thickness. The more economical types of plywood are the c d grades. Sanded plywood table 1 guide to apa sanded plywood gradesab apa a a typical trademark a a g 1 exp 1 0359 in.

In addition to the plywood grades there are four common plywood bonding types. Performance category panel thickness and span ratings are key categories that need to be considered together. The difference is in the glues that are used to bind the plies or layers of the plywood.

Regional availability also comes into play. Us ps 1 specifies thickness tolerances and performance categories for plywood grades and requires a thickness label in 1000ths of an inch. Formaldehyde plywood and formaldehyde osb.

All plywoods bind resin and wood fibre sheets cellulose cells. The type of plywood you choose will depend on what the material will be subjected to after the installation is complete. We have listed the minimum and maximum allowable panel thickness and recommended thickness label for each.

This type of plywood grade is a good choice for projects where you will ultimately cover the plywood panel with some other type of cover material like a smoother mdf sheet.