The Future of Fencing Strength.
Precision Engineered by Straintek®
Professional-grade strainer post systems built for Australian conditions. Maximum durability. Zero fittings. Rapid installation.
Straintek® Strainer Post Systems
Australian Designed & Manufactured Strainer Post Systems
The Straintek® Strainer Post System was developed by DSY Engineering in conjunction with fencing contractors and industry experts to provide a strong fence end assembly that was less complicated to install and cheaper than other products on the market.
No matter what type of fence you are considering installing, the integral end assembly requires careful thought. Inferior or poorly designed end assemblies with short offsets ultimately affect the working capacity of your fence. Whether you are installing short runs in undulating country or 200km straight sections the last thing you need is your end assemblies failing.
Some to the benefits of using Straintek® Strainers Post Systems are; that we use Medium Wall blue end galvanised pipe throughout for strength and 2.5m offsets for stays. Because we use zero fittings and can pre cut farm gate holes into posts, it is a fast system, less complicated and saves install time as well.
Standard vs Heavy‑Duty Builds
Straintek® offers multiple configurations depending on fence height, soil type, and load requirements:
| PRODUCT NAME | PRODUCT CODE | Strainer Post | Stay | Notes |
|---|---|---|---|---|
| Straintek Standard 80/40 | CS80/40 | 90mm (80NB) Galv Post 2165mm Long x 4mm Thick |
50mm (40NB) Galv Stay 3250mm Long x 3.2mm Thick |
Includes post cap Suitable for most rural fencing |
| Straintek Heavy Duty 80/40 Double Strut Corners or Inline |
CS80/40DS | 90mm (80NB) Galv Post 2165mm Long x 4mm Thick |
2 x 50mm (40NB) Galv Stays 3250mm Long x 3.2mm Thick |
Includes post cap Twin Struts for Corners or Inline Strains |
| Straintek Heavy Duty 80/50 | CS80/50 | 90mm (80NB) Galv Post 2165mm Long x 4mm Thick |
60mm (50NB) Galv Stay 3250mm Long x 3.6mm Thick |
Includes post cap For high‑tension or long‑run applications |
| Straintek Heavy Duty 80/50 Double Strut Corners or Inline |
CS80/50DS | 90mm (80NB) Galv Post 2165mm Long x 4mm Thick |
2 x 60mm (50NB) Galv Stays 3250mm Long x 3.6mm Thick |
Includes post cap Twin Struts for Corners or Heavy Inline Strains |

Engineered for Every Application
Double Strut Assemblies designed to handle maximum tension with zero failure.

