How to Build a Planter Bench

Since its boards sit on edge, you need an inner frame to make up for the width of the other courses. Place two crosspieces on edge flush to the inside walls of the planter, then cut two shorter pieces to fit between them, also flush to the inside walls. Mark where the pieces meet one another, remove them, screw them together, and pop the inner frame back into place. Screw through the seat frame into the inner frame's crosspieces. To secure the assembly, drive 3-inch screws at an angle through the inside edges of the inner frame and into the planters, as shown. Now position, glue, and nail four more courses onto the box that will become the tall planter.