This unassembled 9-5/8" deep hive body is finger jointed and is Commercial grade. The wood is Ponderosa pine. These boxes are cut here in the Pacific Northwest. Like all pines, it is important to paint the box with an exterior latex or treat it with on oil annually. Tung oil is a good choice.
There will be knots, and commercial grade wood is more prone to possible (minor) warping. This can make assembling them more difficult, and why they are priced as they are.