Total Vines
51
Posts
18
Wire (ft)
1,200
Wire Rolls
1
Total Vines
51
17 per row \u00D7 3 rows
Posts
18
Wire (ft)
1,200
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Inputs
Result
Vines/row = floor(100/6)+1 = 17. Total = 17×3 = 51. Posts: end = 6, line = (6-2)×3 = 12, total = 18. Wire = 100×4×3 = 1,200 ft.
Inputs
Result
Vines/row = floor(200/8)+1 = 26. Total = 26×5 = 130. Line posts = (11-2)×5 = 45. End = 10. Total = 55. Wire = 200×1×5 = 1,000 ft.
Standard vine spacing is 6–8 ft within rows and 8–10 ft between rows. Wine grapes are often closer (4–6 ft) for higher density. Table grapes need 8 ft spacing for larger canopies.
VSP (Vertical Shoot Positioning) uses 4 wires. High wire cordon uses just 1 wire. Geneva Double Curtain uses 2 parallel wires. T-trellis uses 3 wires on T-arms at each post.
| System | Wires | Best For | Complexity |
|---|---|---|---|
| VSP | 4 | Wine grapes | Moderate |
| High Wire | 1 | Concord/table | Simple |
| Geneva DC | 2 | High vigor | Complex |
| T-Trellis | 3 | Heavy croppers | Moderate |
End posts (anchor posts) should be heavy — 6–8 inch diameter, 3 ft deep, with deadman anchors. Line posts are lighter — 3–4 inch diameter at 20–24 ft spacing. Steel T-posts work for line posts but not end posts.
Wire per row equals row length multiplied by the number of wires for your trellis system. A 100 ft row with VSP (4 wires) needs 400 ft of wire. Use 12.5-gauge high-tensile galvanized wire for longevity.
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Last Updated: Mar 19, 2026
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