T1-11, No Groove, 18-Patch Plywood, 5/8 in x 4 ft x 9 ft - Douglas Fir, Pressure Treated. 5/8X4X9 T1-11 Plain Trt. T1-11, No Groove, 18-Patch grade Plywood - this product is 5/8 in thick, 4 ft wide by 9 ft long and is made from Douglas Fir. This product is also pressure treated.

Item Features

• Douglas Fir is the major species produced in the West, with more volume shipped than any other species and its sterling performance history is recognized the world over
• This plain siding panel, also known as T1-11, has square edges and no grooves; maximum of 18 patches
• Plywood is a versatile and durable wood product with uniform strength along grains regardless of direction
• Pressure-treated with preservative agents to protect against termites, decay and rot; intended for above ground, ground contact, freshwater contact and saltwater splash