Vine posts — also known as line posts or intermediate posts — play a critical role in supporting and maintaining trellis structure throughout the growing seasons. Sika manufactures two main types of steel vine posts: galvanised vineyard posts and corten vineyard posts. Both are designed to meet the needs of modern vineyard management.
Sections and dimensions
Sika vine posts are available in three sections. The profile can be matched to row length, canopy weight and local wind exposure:
- Small — 51 x 33 mm
- Medium — 51 x 41 mm
- Big — 65 x 45 mm
Sheet thickness ranges from 1.8 to 2 mm. The range also includes the tubular Orbit profile, 61 x 50 mm, and the Cortina J-slot profile at 65 x 45 mm. All sections are compatible with mechanical harvesters and pruning equipment.
Galvanised and corten steel vine posts
Galvanised vineyard posts are known for their outstanding resistance to corrosion. Hot-dip galvanisation protects the steel in even the most aggressive environments. This makes them ideal for areas with high humidity or chemical exposure, ensuring a long service life.
Corten vine posts offer an aesthetically pleasing alternative. Their natural rust-coloured finish blends beautifully with the landscape. They are highly resistant to corrosion and as durable as galvanised options. At equal profile and thickness, corten posts cost on average 20% less than the galvanised equivalent.
How vine posts and end posts work together
Vine posts are dimensioned for the load of a single span. Vineyard end posts instead absorb the combined tension of every wire in the row, and require larger sections — Mini Strong 56 x 46 mm and Strong 68 x 56 mm.
Positioned at the ends of each row, they bear the weight of wires, nets and fully loaded vines. They also distribute the tension created by vine growth and adverse weather. Sika offers both types in galvanised steel and corten, so growers can choose the solution that fits their site.
Complete the system
Vine posts work alongside a full range of vineyard supplies: trellis wire, wire tensioners, hooks and wire spacers, all engineered to work with Sika posts.
Cold roll forming
Sika posts are shaped at room temperature by cold roll forming. Unlike hot processes, this preserves the mechanical properties of the steel, producing a stronger post at equal section. It also allows profiles to be tailored to specific vineyard requirements, and makes the posts easier to handle and install in the field.
