Technical Data Sheets
Certifications
General Guidance
Spine Windpost
Spine Windpost is a cost-effective solution predominantly used within internal, single skin blockwork walls where relatively low wind loading occurs. Built into a vertical blockwork joint and bolted to the structure via suitable fixings, it’s hidden from view once installed, making it well suited to fair-faced internal walls.
Technical Data Sheets
Certifications
General Guidance
The Effective, Low Cost Solution
Spine Windposts are built into a vertical blockwork joint and bolted to the structure via suitable fixings, with WPT2 clip in ties transferring loading applied to the blockwork back to the structure. Standard sections range from 90 x 8mm up to 120 x 8mm, achieving factored loads of up to 11.7kN depending on post height – the most cost-effective option in the ACS windpost range, suited to masonry panels experiencing relatively low wind loadings.
Simple To Install
All ACS windposts come with site-specific layout and section details for the post, head fixings, base fixings and ties. They’re supplied with a rigid base connection and a separate top cleat, designed with a slotted connection to allow for movement and tolerance. Almost any size can be designed and manufactured beyond our standard range – just share your specific requirements and we’ll put you in touch with our in-house design team.
Want to learn more about our Windposts?
Specifying windposts for a masonry panel? Share your panel height, wind loading and cavity width with our Technical Engineering Team and we’ll confirm the right section, fixings and layout details your project requires.
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Key Specification Details
- Cost-effective solution for internal, single skin blockwork walls with relatively low wind loading
- Built into a vertical blockwork joint and hidden within the wall once installed, with WPT2 clip-in ties transferring loading from the blockwork back to the structure
- Standard sections from 90 x 8mm up to 120 x 8mm, with factored loads up to 11.7kN depending on post height
- Designed as simply supported beams to Eurocodes 3 and 6, with maximum deflection of height/360 and maximum stress of 191N/mm² (Grade 304), and ties designed to BS EN 845
- Supplied with a rigid base connection and a slotted top cleat for movement and tolerance
Austenitic stainless steel, or carbon steel where specified, CCPI-assessed, with standard or bespoke designs from our technical team
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Every ACS customer benefits from ACS Assured – our framework built on three pillars: Compliance Through Expertise, Assurance Through Transparency, and Performance & Innovation. From Gateway 2 documentation to full product traceability and sustainable manufacturing credentials, it’s built into everything we supply.
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CPD Series
Tested, Certified, Trusted
Spine Windposts are designed to Eurocodes 3 & 6, with ties designed to BS EN 845, and have achieved a Code for Construction Product Information (CCPI) mark for clear, accurate product information.
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Access the NBS specification and BIM resources for this product to support your project planning, specification and design.
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Technical Data Sheet
The ACS Windposts Technical Data Sheet covers product highlights, product summary, installation guidance, and full design tables for L, C and Spine section windposts and their parapet post variants.
FAQs
When should I specify a Spine windpost?
Spine Windpost is best suited to internal, single skin blockwork walls experiencing relatively low wind loading – it’s the most cost-effective post in the ACS range, and is hidden within a vertical blockwork joint once installed, making it well suited to fair-faced walls.
