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  • Locations
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    • Extensions
    • New Build Homes
    • Home Renovation
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South East & East England - 0208 183 4321

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North England & Scotland - 0161 820 3230

atomic

Wind Post Requirements for Walls Adjacent to Neighbouring Properties

Advice Centre

Posted on March 31, 2026

A wall bordering a neighbour’s property is not always a party wall — and it may still need a wind post. Here’s how to work out which case applies to your project.

Tags: atomic, timber-floors-roofs

What Level Does the Steelwork Need to Be?

Advice Centre

Posted on March 31, 2026

Exact steel beam levels are not set by the structural engineer — they are confirmed by the architect and contractor. Here’s why and what the typical tolerance is.

Tags: atomic, steel-beams

Steelwork Corrosion Protection: Paint vs Hot-Dip Galvanising

Advice Centre

Posted on March 31, 2026

Choosing between site-applied paint and off-site galvanising for steel corrosion protection depends on the environment. Here’s what each option provides.

Tags: atomic, steel-beams

Welded Cover Plate Splice: Joining Beams in Sections

Advice Centre

Posted on March 31, 2026

A welded cover plate splice allows a long beam to be delivered in manageable sections and joined on site. Here’s how it works and what the specification requires.

Tags: atomic, steel-beams

What Is a Flexible End Plate Splice?

Advice Centre

Posted on March 31, 2026

A flexible end plate splice connects two beam sections at a support point, carrying shear only. It enables shorter beam lengths for easier site handling while maintaining structural continuity.

Tags: atomic, steel-beams

What Level Does the Steel Beam Need to Be Fixed At?

Advice Centre

Posted on March 31, 2026

Structural drawings give indicative beam levels based on architect information. Final beam levels are confirmed by the architect or builder — not set definitively by the structural engineer.

Tags: atomic, steel-beams

Why Are My Beams at Different Heights? Coordinating B2 and B3 Soffit Levels

Advice Centre

Posted on March 31, 2026

When two intersecting beams are at different heights, it usually isn’t a mistake. Here’s why level differences occur and how to get them changed if they cause a problem.

Tags: atomic, steel-beams

Why a Goalpost Frame Is Necessary for Your Project

Advice Centre

Posted on March 31, 2026

Goalpost frames provide lateral stability when a load-bearing wall is removed. Here’s why two steel columns are needed and what the alternative involves.

Tags: atomic, steel-beams

Corner Masonry Widths: When Is a Wind Post or Structural Post Needed?

Advice Centre

Posted on March 31, 2026

External masonry corners need a minimum return length to provide adequate lateral stiffness. Below 665 mm, a structural post may be needed. Here’s the rule and what to do if your corner is tight.

Tags: atomic, timber-floors-roofs

Corner Window Post Alignment: SHS Column Position vs the Glazing Line

Advice Centre

Posted on March 31, 2026

A steel post at a corner window needs to sit under the beam for structural load transfer — but this can conflict with the glazing line. Here are the options for resolving the clash.

Tags: atomic, timber-floors-roofs

Flat Roof Boarding and Sheathing: What Does the Structural Specification Require?

Advice Centre

Posted on March 31, 2026

The structural specification for flat roof boarding is typically set by the architect, not the structural engineer. Here’s what LABC recommends and how to verify requirements with Building Control.

Tags: atomic, timber-floors-roofs

Joist and Rafter Connections to Beams: Who Details This?

Advice Centre

Posted on March 31, 2026

How joists and rafters connect to steel beams is a construction detail — not a structural engineering item. The builder or architect decides, within broadly accepted practice.

Tags: atomic, timber-floors-roofs

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