Attach the inner pieces

Cut the crosspieces, angling the ends at 6 degrees off square. Space them 15 inches apart on the legs, starting from the top of the spreaders.

Drill countersunk pilot holes and screw the crosspieces to the legs with 1¼-inch screws. Weave the verticals over and under the crosspieces. Fasten the verticals to the post and the spreaders with 1¼-inch screws.