The 5 foot trellis has been the most popular with Georgia growers since it allows for better air circulation that shorter trellises.
Trellis construction is the most expensive step in establishing a muscadine grape vineyard.
Since the trellis is relatively permanent, it should be strong enough to support a heavy crop and made of durable materials that will last for many years. In sizeable plantings where mechanical harvesters and pruners will be used, the one-wire trellis is recommended. Most experienced growers prefer the one wire trellis because of ease of establishment, pruning, harvesting, and renovation. Since row widths are such that vineyard machinery can move only in one direction at a time, without room to turn around, extremely long rows should be avoided. If the vineyard site is best suited to long rows, break the rows into sections 400 to 600 feet long, leaving a gap 30 feet wide for convenience of movement through the vineyard.