Amazon.com : GRASOLAR 118'' L x 79'' W x 90.5'' H Large Grape Vine Support Arch Arbor Gazebo Trellis Rack Pergola Plastic-Coated Metal Large Cane Frame for Vineyard Outdoor Patio Lawn Yard
Which trellis is better for planting grapes? (grapes forum at permies)
Research: Too much California sun may require new wine grape vineyard systems
Vineyard trellis is key to success - Fruit & Vine
Trellis Systems Play More Than a Supporting Role - King Estate Winery