Square & Rectangular Column Casings

Aluminium column casings suitable for all applications

Our rectangular and square aluminium column casings are a popular architectural solution for structural columns. Available plain or perforated, they provide a stylish addition to the appearance of any building. Using some of the best machinery in the industry, we can create any shape and size column casing with fast lead times and delivery directly to site.

Working in three metre lengths, column casings can be stacked to achieve any height. They are available in a huge variety of RAL and BS colours and finishes including textured and anodised effect.

Conceal Column Casings are built to work with The Guttercrest Group’s other aluminium building products, including rainwater goods, coping, rainscreen cladding and window pods. For a full aluminium building products solution, contact us today to speak with one of our knowledgeable technical team.

Key Features
aluminium column casings non combustible icon


aluminium column casings any building height icon

Suitable for any height column

aluminium column casings paint finish icon

Wide range of colours & finishes

conceal aluminium square column casings hammersmith
  • Features & Benefits
    • Made in the UK
    • Fast lead times
    • Excellent quality, precision engineered
    • Low maintenance
    • Unlimited design opportunities
    • Perforations available
    • LED lighting can be incorporated
    • Rodding eye access points can be included
    • Feature collars available
    • Fixing kit included for quick installs
    • Column casings can be used for internal or external use
    conceal square column casings aluminium cut through
  • Finishes

    Aluminium square and rectangular column casings are available in a wide range of colours and finishes, including mill finish (uncoated aluminium), polyester powder coated in any RAL or BS colour, heritage (textured) effect, stone effect and anodised effect.


    Polyester Powder Coated


    Anodised Effect


    Stone Effect




    Mill Finish Aluminium

  • Technical Info

    Conceal Column Casings are designed for internal or external use, offering a 3mm (standard) thick metal skin in a range of shapes and sizes.

    Conceal column casings meet BS EN 485-2.

    Fire performance

    Manufactured using 3mm aluminium as standard, they are non-combustible and suitable for any building type, achieving class ‘O’ spread of flame to BS 476-4.


    Available up to 3m in length, Conceal’s column casings can be stacked to achieve any height. Normally supplied as two-sided casing to fully conceal the structural column. On larger columns, four sided casings will be necessary.

    They are secured to structural columns using aluminium fixing kits and screws (by others). All fixings are hidden.

  • Sizes

    We make square and rectangular column casings in any size to suit your project.

    Below are a few of the most popular standard sizes:

    Square Column Casings

    • 250mm x 250mm
    • 300mm x 300mm
    • 350mm x 350mm
    • 450mm x 450mm
    • 500mm x 500mm
    • 550mm x 550mm
    • 600mm x 600mm
    • 650mm x 650mm
    • 700mm x 700mm
    • 750mm x 750mm
    • 800mm x 800mm
    • 850mm x 850mm
    • 900mm x 900mm
    • 950mm x 950mm
    • 1000mm x 1000mm

    Rectangular Column Casings

    • 200mm x 300mm
    • 300mm x 400mm
    • 400mm x 500mm
    • 500mm x 600mm
    • 600mm x 700mm
    • 700mm x 800mm
    • 800mm x 900mm
    • 900mm x 1000mm
    • 1000mm x 1100mm
    conceal aluminium square columns casings scales
  • Downloads

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Combine With Other Products

Conceal is part of The Guttercrest Group who specialise in aluminium building products, including Guttercrest’s rainwater goods, Ali-Fabs’ copings and cappings, Husk Architectural’s rainscreen cladding and WindyPods’ window surrounds. Combined we can provide a total aluminium system for the building envelope.


Bespoke Column Casings

It’s not just square, rectangular, round, cylindrical, bullet and elliptical shapes that we can create. Our state-of-the-art machinery means we can offer almost unlimited design options to make your building stand out from the crowd. Incorporate perforations for a unique look and texture. We also offer a wide range of colours and finishes including any RAL or BS colour in a polyester powder coating, plus effects like stone and anodised.

conceal bespoke aluminium columns casings

Benefits of Aluminium Column Casings

Aluminium, one of the most abundant metals in nature, is the ideal choice for an eco-friendly build. It’s also 100% recyclable at the end of its long life. Lightweight, durable and strong, aluminium is a popular choice among today’s architects and contractors. Corrosion resistant aluminium requires no painting and minimal maintenance.


Quick Downloads

Interested In This Product?

We make square and rectangular column casings to order in any size. Below are a few examples of standard sizes:

Contact Us

Our Other Products

Why Conceal Column & Beam Casings?





design possibilities

aluminium column casing design

From drawing
to delivery

we’ll take your project from initial design to finished product


Tried & Tested

on commercial and residential buildings in the UK and overseas

The Guttercrest Group


Manufacturers of aluminium gutters & downpipes

Manufacturers of aluminium wall copings & cappings

Manufacturers of aluminium rainscreen cladding

windy pods window pods product

Manufacturers of aluminium window surrounds

Contact Us:

Direct Line:01691 663300

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