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

 The Straintek® Difference

Zero Fittings
Superior Ground Retention
Contractor Approved
Australian Made and Designed

Learn more

Engineered for Every Application

Double Strut Assemblies designed to handle maximum tension with zero failure.

Straintek® Standard 80/40 (CS80/40)

The versatile industry standard. Features a 90mm (80NB) post and 50mm (40NB) stay. Perfect for standard high-tensile fencing and general stock management.

Straintek® Heavy Duty 80/50 (CHD80/50)

Maximum structural integrity. Features a 90mm (80NB) post with an upgraded 60mm (50NB) stay. Designed for high-pressure areas, heavy-duty fences, and longer fence lengths.

Contact us with your order below