Raise the roof

The six-foot-long roof calls for fourteen 36-inch 1x4 slats spaced approximately 1-1/2 inches apart and with a front overhang of 12 inches. This spacing will give plants moderate sun protection. Vary the slat quantity and spacing to suit your shading requirements.

Lay out the 2x4 roof supports on edge and spaced 24 inches apart. Attach the end slats first, flush to the rear support and overhanging the front. Use two 6d nails or two 2-inch deck screws per joint. Position the rest of the roof slats with equal spaces, approximately 1-1/2 inches, before attaching them.

Build the middle shelf