All Big Sky colors are 3-ply Engineered full 3/4" thick, made from Northern European White Oak. The 6mm sawn face allows for maximum amount of sanding and life expectancy equal to traditional 3/4" solid flooring. 7 1/2" wide planks display more natural character with fewer seams and enhanced grain visuals. Visuals will include a mixture of live-sawn planks (rift, quartered and plain sawn in the same board). A 50 year residential warranty provides confidence that your flooring investment will last for years to come.