I made a 4x8 foot bench on 200lbs capacity casters last weekend. I stained it today, I am doing more tomorrow. The red was too red, some walnut stain should even it out.
It has 2 plys of 3/4 inch plywood for a top, 2x6 frame, and under supports. The legs are PT 4x4, the 2x6’s are yellow pine...