Plywood is a panel made of thin layers of wood glued together. Comes in 4'x8' sheets and various other sizes.

There is a wide range of quilty of plywood. From cheaper plywood for cladding in construction to high quality plywood for furniture.

Plywood comes in varies thicknesses.

References

Sauna Roof Underlayment

Sep 30, 2022

From Felt to Rubber

✒️ Posts,

🔥 Sauna

The ripped felt left the OSB panels exposed to the elements and now I wished I had used plywood there instead.