Column Casings — METRAC
Column Casings
Aluminium column casings that wrap a structural column in a single, seamless multi-faced wrap — powder coated to any RAL
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About this product

METRAC column casings conceal exposed structural columns — steel, concrete or masonry — behind a clean powder coated aluminium skin. Each casing wraps multiple faces of the column, typically three sides formed from a single piece, presenting one continuous seamless surface rather than separate bolted-on panels.

Casings are fabricated from thicker-gauge aluminium, typically 2–3mm, for a flat, rigid face that holds its line over the full column height and resists rippling. Joints between sections are detailed with concealed butt straps, keeping fixings hidden and joint lines consistent. The casings are non-structural but built for durability and long-term finish retention.

Each casing is manufactured to drawing to suit the column dimensions, surrounding facade and specified RAL. Where aluminium meets a galvanised steel subframe, isolation tape separates the dissimilar metals to prevent bimetallic corrosion. Forming and geometry are handled in-house. Contact the team with your drawings for specification and pricing.

Specifications
Material Aluminium
Gauge 2–3mm (thick-gauge architectural)
Form Multi-faced wrap — typically three sides from a single piece, corners formed not jointed
Joints Concealed butt straps, typically 3mm joint gap — hidden fixings
Support Concealed galvanised steel subframe — top-hat and angle, typically 450mm centres
Finish Powder coated, full RAL range
Fire rating A1 / A2-s1,d0 (BS EN 13501-1)
Corrosion protection Isolation tape between dissimilar metals
Bespoke sizing Yes — manufactured to drawing
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Key features
Multi-faced wrap with corners formed, not jointed — the arris stays sharp and unbroken for a seamless finish
Thick-gauge aluminium, 2–3mm — flat, rigid face that holds its line over the full column height
Concealed galvanised subframe sets the casing off the structure and squares up an out-of-plumb column
Concealed butt-strap joints at a consistent gap — no visible fixings
Isolation tape between dissimilar metals — protects against bimetallic corrosion (supplied on request)
Edge and abutment flashings detailed to match — clean junctions to adjacent cladding and reveals
Manufactured to drawing — forming complexity handled in-house
Available finishes
Powder coated to any RAL Non-combustible aluminium — A1 / A2-s1,d0 to EN 13501-1
Downloads & next steps
↓ Download the METRAC brochure
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