Answer: There are many designs for trellis using sturdy wooden posts or pipe or pvc along with variations of twine, synthetic netting and wire mesh and they all work. If you are erecting permanent trellis you may want to use raised beds and try some intensive planting techniques to make the most of the construction. A book you might find helpful is "Square Foot Gardening" by Mel Bartholomew. In it there are sample plans for the types of supports you are thinking of as well as tips in the best ways to orient and use them. There are also many kits available. Burpee (800-888-1447) for instance offered one for pea fence in this spring's catalog.
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