Simple Open-Top Wood Toy Box on Casters

Attach the four legs to the plywood base with 2" wood screws and wood glue driven from the underside — one screw per leg is enough.

Attach the end cedar fence pickets to the legs with 1-1/2" screws, two per end of each picket, four screws total per picket. Keep the legs square with the pickets as you attach them, especially the top picket.

Repeat the same process for the side fence pickets.

Center the remaining fence pickets, keeping an even gap on both sides, and attach with 1-1/2" screws, two per end of each picket.

Attach the caster wheels to the base with the caster wheel screws. If using cedar, sand thoroughly and wear a respirator or mask while sanding — cedar dust is a real respiratory irritant.