Is someone available to visit my vineyard?
Yes, we have both New Zealand and Australian based Sales Engineers.
What post lengths are available?
Standard post lengths are 2.4m and 2.1m.
Longer posts are available on request to allow for deeper insertion, where ground conditions or wind loadings require this.
Are there standard hole positions?
Yes, please refer to our website under ‘order forms’. Non standard hole spacings are available on request.
How strong are ECO TRELLIS® posts?
ECO TRELLIS® posts are made from high-strength steel and are designed to handle full canopy loads, high winds, and mechanical harvesting. Failure rates are typically very low to non-existent and under extreme loads ECO TRELLIS® posts generally bend rather than breaking.
If you think your vineyard conditions require them, extra strong, double thickness Mega Posts are available.
How long do the posts last?
Galvanised steel posts have an expected lifespan of 15–20 years or more, depending on soil conditions and environment.
Will the posts rust?
The Z450 galvanised coating provides strong corrosion resistance. Some surface discolouration may occur over time, but this does not affect structural performance.
Are they suitable for high wind areas?
While standard posts perform well in most conditions, wind is a factor and should be considered along with soil conditions.
In very high wind areas, and/or less than ideal terroir, stronger or deeper inserted posts may be needed.
We can supply longer posts and stronger double skinned posts on request for use in these situations.
What material are the posts made from?
High-strength steel (Grade 310) with a heavy-duty Z450 zinc coating.
How far apart should posts be spaced?
Typically, 7.2m spacing is achievable. Wider spacing may be possible depending on crop load and site conditions.
Likewise, in locations with very high wind, and/or less than ideal terroir and conditions, narrower spacings may be needed.
How deep should posts be installed?
Posts are generally installed approximately 600mm into the ground for optimal stability.
Longer posts are available on application, to allow for deeper insertion, where ground conditions are not typical
What is the purpose of the bulge at the base?
The bulge increases resistance to both upward and downward movement, improving ground retention.
What is the rolled top for?
The rolled top improves safety during handling and helps prevent snagging with bird netting.
How fast is installation compared to timber?
Installation can be 2–3 times faster than traditional timber posts, depending on soil conditions.
Can posts be installed manually?
Yes, manual installation is possible using a hand rammer, depending on soil type.
Can steel posts be used alongside existing timber posts?
Yes, but retaining damaged treated timber posts may allow continued chemical leaching.
What types of strainers are available?
ECO TRELLIS® offers tie-back, conventional, and box strainer systems to suit different vineyard layouts and soil conditions.
Which strainer system is most cost-effective?
In most situations, the tie-back system is the most cost-effective and fastest to install.
How long does installation take?
Tie-back strainers can often be installed in under 10 minutes. Other systems may take longer depending on conditions.
Do you supply anchors?
Yes, ECO TRELLIS® anchors can be supplied as part of the strainer system.
How do I choose the right anchor?
- Winged anchors suit soft or sandy soils
- Standard anchors suit firm or rocky ground
What is the benefit of the patented footing?
The optional footing improves post ground retention where soil conditions are less than ideal
What are the clips made from?
High-density nylon (Type 66), designed for durability and long-term performance.
The clips are UV stabilised to provide for longer life. NOTE they are not merely ‘plastic’.
How long do the clips last?
Clips typically last 10–15 years or more, depending on environmental conditions.
Are the clips strong enough for vineyard loads?
Yes. ECO TRELLIS® clips are designed to handle high crop loads and have performed reliably in demanding vineyard conditions.
Are they compatible with mechanical harvesting and pruning?
Yes, the system is designed to work with automated vineyard equipment.
Can clips be reused?
They can be reused, but this is not generally recommended.
Do clips require tools to install?
No. Clips are designed for simple installation by hand, but we do include an insert tool with each bag of clips.
Are different clip types available?
Yes, multiple clip options are available depending on wire type and vineyard requirements.
Are clips affected by frost or UV?
Clips perform well in freezing conditions. UV exposure may cause some discolouration over time but does not affect performance.
What is the typical delivery time?
Standard lead time in New Zealand is typically 3–4 weeks from the mill . Some products may be available through rural distributors.
Are there delivery costs?
Yes, freight costs vary depending on location.
Are there price benefits for larger orders?
Yes, pricing can vary depending on project size and production volumes. Talk to us about your project.
What pack sizes are available?
Standard pack sizes vary by region but typically include 170–180 posts per pack for 2.4m posts.