I’m currently exploring construction options for garden rooms and small annexes, and I keep seeing more projects moving away from traditional timber and brick builds.

Light gauge steel framing seems like a strong alternative — especially for anyone who wants a quicker build, better structural accuracy, and long-term durability. From what I’ve read, steel frames are less affected by moisture, don’t warp over time, and are ideal for modular or bespoke designs.

While researching UK companies that specialise in this, I came across Acero Designs Ltd. They focus on custom steel frame solutions for residential and commercial projects, including garden rooms and annex-style builds. Their site (https://acerodesigns.com/
) has some useful information about how steel framing works and where it’s most effective.

I’d love to hear from anyone who has actually built a garden room or annex using steel framing. Did it help reduce build time? And how does it compare in terms of insulation and overall cost?