Clamp the parts to a flat surface with the best-looking sides face up. Join the parts with screws as detailed in Figure A. The bottom rails (C) require a 2-in.-deep countersink hole drilled with a 5/8 ...

“They liked the idea so much that they offered to help us build four big rooftop garden boxes. I had learned how to build garden boxes with my students across the lake, and so I taught volunteers how ...