Try This: Tiny-Footprint Garden Bench

Make a beautiful, comfortable and waterproof garden bench from recycled plastic and rubber materials.

3. Attach the legs at each corner joint, using eight 2½-inch-long screws. Position screws so they don’t hit other screws as they enter the lumber. Adjust the screw position up or down to ensure a clear path. For an extra-sturdy bench, add a brace of 1-by-4-inch strips secured with screws about 6 inches down from the top of the leg.
Susan Wasinger