Ag-Steel™ | Vineyard Product Range

Ag-Steel™ Vineyard Trellis Product Range

Ag-Steel vineyard trellis post system helps meet the challenges of sustainable wine growing, by providing a high-quality long lasting steel post, lightweight yet strong, 100% recyclable, economically viable and a great organic solution.

The Ag-Steel™ range of posts and end assemblies are manufactured in New Zealand using pre galvanised GS310 tube, which features a Z450 coating with external weld seam zinc repair, ensuring coating continuity. The product features a smooth and consistent surface finish, is highly formable and is particularly suitable for outdoor and corrosion prone environments where long term durability is essential.

Designed for easy installation, ideal replacement posts or new blocks, with standard or customised wire spacing options.

When you choose Ag-Steel, you’re choosing a product that’s backed by a partner who understands what’s at stake: the land, your craft, and the future of your wine.

Proudly New Zealand made. Gold-standard sustainably manufactured. 0% Chemical leaching. 100% Recyclable

Read about our Gold Certification for Sustainability

Benefits of Ag-Steel Vineyard Trellis System

Customisable for your vineyard

Wire spacing can be standard or customised to suit your vineyard layout and vine variety, providing flexibility for both new plantings and retrofits.

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Sustainable, organic-friendly recyclable orchard solution

Ag-Steel is a responsible, future-focused solution for orchard and vineyard infrastructure. AgSteel products will not cause chemical leaching and are fully recyclable, supporting environmentally responsible orchard and vineyard practices.

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Proven quality & reliability in orchard environments

Purpose-built for orchard and vineyard support systems, the Ag-Steel range is manufactured from high-grade steel 310 steel (minimum 310 MPa) ensuring compatibility and consistent performance across the Ag-Steel system, delivering dependable structural strength season after season.

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Ag-Steel’s Vineyard Trellis Post, End Assembly and Clip system is designed to meet the challenges of sustainable wine growing by providing high-quality, long-lasting steel posts that are lightweight yet strong.

Posts | Clips | End Assemblies

Click to view our Vineyard Trellis Post range

Ag-Steel Vine Post

Ag-Steel Vine Post

Ag-Steel Vineyard End Assemblies

Ag-Steel Vineyard End Assemblies

Ag-Steel Vineyard Clips

Ag-Steel Vineyard Clips

Vineyard Trellis Post Sizes and Product Specifications

Base Material	Continuously hot-dip galvanised (Galvsteel® G310)
Vine Post 76	Vine Post 76 (76.0 x 1.2) Four lengths 1.8m, 2.1m, 2.4m and 2.7m \| Features include Star or Flare Point and Swagged Top
VinePost 63	Vine Post 63 (63.0 x 1.2) Four lengths 1.8m, 2.1m, 2.4m and 2.7m \| Features include Star or Flare Point and Swagged Top
Vine Post 51	Vine Post 51 (50.8 x 1.2) Four lengths 1.8m, 2.1m, 2.4m and 2.7m
End Assembly Box End	1.65m High
End Assembly Stay End	2.40m High
Yield Strength	310MPa (BM)
Tensile Strength	450 MPa (BM)
Base Material Standard	(GS): AS/NZS 1365:1996 (R2016), AS 1397:2021
Product standard	AS 1450
Surface Finish	Z450 coating (both sides). Medium Spangle
Tube Thickness	1.2mm

G310 Base Material - Typical Mechanical Properties

Yield strength	Tensile strength	EI % on Lo=50mm
310 MPa	450 MPa	25

Quick answers to common questions about our products and services.

Frequently Asked Questions

How does Ag-Steel™ compare with other vineyard trellis systems?

Different companies trellis systems are designed in different ways to suit different growing environments, vineyard requirements, and grower preferences. The right choice depends on factors such as vineyard design, site conditions, product specifications, and supplier confidence.

Ag-Steel™ has been supplying New Zealand growers since 1994, with products that have proven their strength, durability, and reliability over more than 30 years in real New Zealand growing conditions.

Why growers choose Ag-Steel™

Over 30 years of horticultural experience, manufacturing steel support systems since 1994.
Gold Certification from the Sustainable Steel Council for manufacturing processes
Proven performance in New Zealand vineyards and orchards across a wide range of conditions.
Manufactured in New Zealand using high-quality steel with corrosion protection designed for demanding outdoor environments.

What Ag-Steel Vineyard Trellis Post Systems offer:

Confidence in the Ag-Steel expertise in the horticulture sector
Choice in post sizing to suit the land, and customised of clip placement
Compatibility with industry-standard screw in clip systems, making installation and ongoing management straightforward.
Works seamlessly with all commonly used strainer systems.
Backed by local manufacturing, technical expertise, and responsive customer support.

Choosing the Right Vineyard Trellis Posts: Why Growers Choose Ag-Steel™

Are AgSteel vine posts compatible and approved use with Klima pruning machine?

We have designed the Vineposts to allow for the use of the Klima machine. The posts tear drop design allows for the commonly used Klima screw in clip, installed with a tek screw, to be used on the posts.

Are the clip spacing positions standard?

When completing the Vinepost order form, the customer can select specific clip spacing to meet requirements. These can be made custom to the customers specifications.