Plan posts, wire and area for a garden trellis.
Trellis posts are spaced along the row plus one end post, and each horizontal wire run spans the full row length. Vertical growing on a trellis crams more plants into less ground and improves air flow, but only with enough posts to stay standing.
Trellis
Posts = row length ÷ post spacing + 1; wire = row length x wire runs
Posts = row length ÷ post spacing + 1; wire = row length x wire runs Trellis posts are spaced along the row plus one end post, and each horizontal wire run spans the full row length.
Vertical growing on a trellis crams more plants into less ground and improves air flow, but only with enough posts to stay standing.
This calculator takes 3 inputs: Row length, Post spacing, Trellis height. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.