15" Delta, a work horse. You need good dust collection with a 5" duct. Handles anything you put through it, 2 speeds, compact, nice folding feed tables, requires 220 outlet. Stationary planers are the way to go if you want a serious planer capable of handling a few hundred LF on a regular basis for many years. They have the adjustability to fine tune correctly that portables don't have as well as plenty of power, substantial hardened blades, options for insert or spiral cutters.