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Decorative casing solutions for retail conceal structural columns, steelwork and other building elements while giving a store a coordinated finished interior or exterior. Encasement’s Verta column-casing range covers MDF, plywood, metal, GRP, GRG and specialist mezzanine-column systems; its Vecta range provides bespoke linings for walls, bulkheads, soffits, reveals and related features. The right specification depends on exposure, geometry, dimensions, finish, wear, installation and project performance requirements—not on appearance alone.
This guide explains where each system fits, how to compare materials and finishes, what the Porsche Centre example demonstrates, and which details a retail design and construction team should confirm before ordering.
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What do decorative retail casings do?
A column casing is a manufactured enclosure fitted around a structural column or steel member. It hides an unavoidable building element and turns it into a deliberate part of the retail environment. Building linings perform a related job on larger surfaces and junctions, such as walls, lift lobbies, bulkheads, fascias, soffits, reveals and skirtings.
Encasement describes these products as practical ways to conceal interior and exterior structural steelwork while adding an architectural finish. Its retail overview presents casings and linings as part of the design process, rather than as a last-minute cover for a structural problem. The casing still has to accommodate the actual support, connection details, access needs and tolerances on site.
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For a retail project, the enclosure may need to sit beside shelving, circulation routes, signage, lighting, sprinklers or shopfront glazing. A successful design therefore coordinates the profile and jointing with the rest of the fit-out. It should also state whether the product is for an interior, a sheltered exterior or a fully exposed location.
Which Encasement systems are relevant to retail?
Encasement’s Verta range contains several column-casing families. The manufacturer also offers Vecta for bespoke interior building linings. The table is a starting point for a design brief; the exact profile, finish, dimensions and performance must be confirmed for the selected product and project.
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|---|---|---|---|
| Circa | MDF | Interior column casing | Use where a timber-based, paint-grade or otherwise specified decorative enclosure is appropriate; confirm the available profile and finish. |
| Quadra | Pre-formed plywood | Interior column casing | Useful for a plywood-based casing concept; dimensions and finish are project-specific. |
| Forma | Aluminium | Column casings, including retail steelwork concealment; also identified for exterior retail features | Metal finishes can include coated, brushed, anodised, embossed or textured options where offered. Confirm the selected coating and exposure suitability. |
| Polyma | GRP | Column casings; identified for exterior storefronts, canopy supports and retail-park features | Encasement describes the family as durable and weather resistant for exterior use; treat that as manufacturer information and verify the project specification. |
| Gypra | GRG | Interior column casing | Specify the required shape, joint treatment and finish with the supplier and design team. |
| Metza | Product-specific specialist system | Columns supporting a mezzanine | Designed to protect mezzanine-supporting columns. Do not treat this description as a general structural-fire-protection classification; obtain the exact tested or certified requirement for the building. |
| Vecta | Project-specific lining system | Walls, lift-lobby linings, bulkheads, fascias, soffits, reveals and skirtings | Interior building linings made to project specifications. Encasement says site surveys inform installation planning. |
The manufacturer’s products page and its column-casing guide should be read alongside the project drawings. A product name alone does not establish a permitted diameter, fire performance, impact rating or external warranty.
How should a retail team compare casing materials?
Start with the building condition and the required finish, then narrow the material. There is no universally best casing: MDF, plywood, aluminium, GRP and GRG solve different coordination and appearance problems.
Timber-based casings: MDF and plywood
Circa MDF and Quadra pre-formed plywood provide non-metal alternatives for interior applications. They may suit a painted, veneered or laminated design language, especially where the casing needs to read as joinery. Ask for the available edge details, substrate thickness, joint arrangement and finish build-up before setting out adjacent trims.
Keep the operating environment in view. A busy sales floor, trolley route or stockroom entrance can impose more impact and cleaning demand than a low-traffic display zone. The casing schedule should identify the expected wear level and the finish system, rather than simply saying “painted MDF” or “plywood.”
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Forma is the documented aluminium casing family. Metal can support a crisp contemporary profile and finishes such as powder coating, brushing or anodising, subject to the product options. The design should resolve visible seams, fixing access and interfaces with skirting, ceiling details and shopfront elements.
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The available data also identifies steel among Encasement’s documented casing materials, although the retail product guide specifically names Forma for the aluminium example. If steel is being considered, obtain the exact system, corrosion protection, mass, fixing method and finish specification from the supplier rather than assuming that a Forma detail applies.
GRP and GRG
Polyma GRP is identified for column casings and for exterior retail situations such as storefronts, canopy supports and retail-park features. Encasement attributes that use to durability and weather resistance. Those are manufacturer statements, not independent comparative test results, so the tender should request the evidence and limits relevant to the site’s exposure.
Gypra GRG is listed for interior column casings. As with any mineral or composite lining, coordinate the substrate, joint treatment and final decoration with the required appearance and maintenance regime. Confirm whether the proposed finish is supplied factory-applied or completed on site.
Which profiles, dimensions and finishes should be specified?
Specify the geometry before requesting a price or fabrication drawing. The available comparison axes include circular, square, rectangular, hexagonal and project-specific shapes, but each product family has its own limits. Record the finished outside dimension, the structural member size, clearances, plumb tolerances and any offsets caused by brackets, services or fire protection.
For each casing, include:
- Plan shape and finished diameter or width/depth.
- Overall height, floor-to-ceiling interfaces and any breaks for beams or connections.
- Access panels, removable sections and the location of visible joints.
- Required corner radii, arrises, reveals and skirting or dado transitions.
- Finish reference, sheen, texture, edge treatment and colour standard where applicable.
- Cleaning, impact, abrasion and touch-up expectations for the location.
- Interior, sheltered exterior or exposed exterior classification.
- Any fire, smoke, reaction-to-fire, acoustic, hygiene or structural-interface requirement that the project team must verify.
Encasement lists laminates and veneers as well as coated, brushed, anodised, embossed and textured metal options in its column-casing finishes information. Availability is product-dependent. A colour chip or generic RAL reference is not, by itself, a specification for gloss, texture, repairability or long-term appearance.
Can the same casing be used inside and outside a store?
No. Encasement describes all of its listed column-casing types as suitable for interiors, while specifically identifying Forma and Polyma for exterior retail use. Exterior suitability still needs confirmation for the exact finish, exposure, drainage, fixing arrangement and project location.
For an external storefront or canopy support, ask the supplier to confirm the weathering assumptions, corrosion protection, joint sealing and maintenance interval. A sheltered entrance and an exposed retail-park elevation are different environments. Do not transfer an interior paint or laminate specification to an exterior elevation without written confirmation.
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Vecta is described as an interior building-lining system. It can address large architectural surfaces, but it should not be assumed to be an exterior cladding system simply because it can be made to a bespoke shape.
How does Vecta differ from a column casing?
Vecta is intended for bespoke interior building linings; a column casing is an enclosure around a discrete structural support. Vecta can continue a design language across walls, lift lobbies, bulkheads, fascias, soffits, reveals and skirtings where a series of individual casings would leave awkward gaps.
Encasement says Vecta products are made to project specifications and that site surveys inform installation planning. Include reflected ceiling plans, elevations, service zones and interface details in the survey brief. The survey should also record out-of-square conditions and the sequence in which other trades will install adjacent finishes.
In practice, a retail scheme may combine both: a Forma or Polyma casing around a support and Vecta lining across the surrounding wall or soffit. Treat the junction as a design detail requiring coordinated shop drawings, not as an automatic match between product families.
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What does the Porsche Centre example show?
Encasement reports that the Porsche Centre in West London used 22 Forma circular aluminium column casings to conceal structural steelwork. The project page specifies a 3 mm aluminium skin, twenty units at 450 mm diameter and two units at 400 mm diameter, all with a protective RAL 9007 metallic light-grey powder-coated finish. These are manufacturer-reported project details, not an independent evaluation or a template for every retail column.
The example is useful because it shows how a casing schedule can state material, skin thickness, quantity, diameter and finish in one coordinated description. It also illustrates why the column survey matters: two diameters were required rather than one nominal size. Use the figures as a reference for the level of information to capture, then obtain a project-specific design.
Encasement’s retail article also cites Vecta linings and casings on projects for Tesco, Pret A Manger, Mini and Greggs. Those named uses are manufacturer-reported references; they do not prove that a particular product, finish or performance classification is suitable for a new site.
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How do you prepare a casing package for tender?
Give bidders a coordinated schedule and enough survey information to distinguish a genuine bespoke requirement from an allowance. The following sequence reduces redesign during fit-out.
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- Classify exposure. Label each item interior, sheltered exterior or exposed exterior, and identify cleaning, impact and weathering conditions.
- Set the geometry. Record measured dimensions, finished clearances, profile, height, access requirements and tolerances. State whether dimensions are structural or finished outside dimensions.
- Select a material family. Shortlist MDF, plywood, aluminium, GRP or GRG according to the appearance, environment and project requirements. Ask for confirmation of the exact product designation.
- Define the finish. Name laminate, veneer, paint, powder coat, brushed, anodised, embossed or textured treatment as applicable. Include colour, sheen and sample-approval requirements.
- Coordinate performance. Identify any reaction-to-fire, smoke, acoustic, hygiene, impact, corrosion or cleaning requirement. Request the relevant declarations, test reports or certifications from the supplier and design team.
- Resolve installation. Show fixing zones, removable panels, joint positions, sequencing, substrate preparation and interfaces with floor, ceiling, services and signage.
- Confirm survey and shop drawings. Encasement states that site surveys inform Vecta installation planning; apply the same discipline to column casings and approve fabrication drawings before manufacture.
- Inspect handover items. Require finish samples, care instructions, spare or touch-up provisions where appropriate, and an as-installed schedule identifying each casing.
What common specification mistakes should be avoided?
- Using “column cover” as the whole brief. That phrase does not define shape, dimensions, access, finish or exposure.
- Assuming one product fits every geometry. A circular aluminium casing and a rectangular timber-based casing have different joints, tolerances and coordination needs.
- Confusing a manufacturer description with certification. Statements such as “weather resistant” or “protective” should be backed by the evidence required for the project.
- Calling Metza a generic fire-rated solution. Its documented purpose is protection of mezzanine-supporting columns; obtain the exact structural and fire requirement separately.
- Leaving the finish until after fabrication. Coating, anodising, laminate, veneer and site decoration affect substrates, joints and colour control.
- Ignoring access. Concealed fixings, removable panels and service clearances should be agreed before the casing closes the steelwork.
- Copying a reference project’s dimensions. The Porsche Centre’s 450 mm and 400 mm diameters are project facts, not standard sizes for another store.
What should you ask Encasement before placing an order?
Request the product data and fabrication proposal for the exact application, not only a brochure image. Useful questions include:
- Which named system is proposed, and is it intended for this interior or exterior exposure?
- What finished profiles, dimensions, thicknesses and tolerances are available?
- How are joints, corners, access panels and transitions detailed?
- Which finish options are available for this product, and how are samples approved?
- What evidence supports the project’s fire, smoke, impact, corrosion, acoustic or hygiene requirements?
- What survey information is required, and who verifies dimensions before manufacture?
- Is installation included, and what substrate, access and sequencing conditions must the main contractor provide?
- What cleaning, inspection, repair and replacement guidance accompanies the finished casing?
Encasement describes bespoke project work and supply-and-install capability. Confirm scope, programme, responsibilities and any site-measure process in the quotation rather than assuming that a standard product listing includes installation.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How should a retail project choose between casing and lining?
Choose a column casing when the primary problem is an isolated structural support or steel member. Choose a building lining when the design needs a continuous treatment across a wall, bulkhead, soffit, reveal, lift lobby or other architectural surface. Use both when the column and its surrounding envelope need to read as one coordinated interior.
The decision should be recorded in the finish schedule with the application, exposure, material, profile, dimensions and finish for every zone. That simple schedule prevents an attractive visual concept from becoming an unbuildable or non-compliant late change.
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Are architectural column casings the same as retail display cases?
No. Architectural column casings enclose structural columns or steelwork, while display cases hold merchandise. They require different design, fixing, access and performance considerations.
Can a casing hide a column that is not perfectly vertical?
Often a bespoke enclosure can be designed around surveyed conditions, but the allowable tolerance depends on the selected system and its fixing detail. Record the as-built deviation and obtain an approved fabrication drawing before manufacture.
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Do metal casings need a powder-coated finish?
No single finish is mandatory. Encasement lists coated, brushed, anodised, embossed and textured metal options where available; select the treatment that meets the appearance, exposure, cleaning and durability requirements for the particular product.
Is a mezzanine-column casing automatically a fire-protection system?
No. Metza is described as a system intended to protect mezzanine-supporting columns, but that wording is not a general fire-resistance classification. The structural engineer, building-control strategy and supplier must confirm the required evidence for the project.
What information should accompany a request for a casing quotation?
Send surveyed dimensions, plans and elevations, exposure classification, profile and finish intent, access requirements, interfaces with other trades and any performance criteria. Include quantities and heights, but do not rely on quantities alone: the supplier needs the geometry and site conditions to prepare a reliable proposal.
Frequently Asked Questions
Are architectural column casings the same as retail display cases?
No. Architectural column casings enclose structural columns or steelwork, while display cases hold merchandise. They require different design, fixing, access and performance considerations.
Can a casing hide a column that is not perfectly vertical?
Often a bespoke enclosure can be designed around surveyed conditions, but the allowable tolerance depends on the selected system and its fixing detail. Record the as-built deviation and obtain an approved fabrication drawing before manufacture.
Do metal casings need a powder-coated finish?
No single finish is mandatory. Encasement lists coated, brushed, anodised, embossed and textured metal options where available; select the treatment that meets the appearance, exposure, cleaning and durability requirements for the particular product.
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Is a mezzanine-column casing automatically a fire-protection system?
No. Metza is described as a system intended to protect mezzanine-supporting columns, but that wording is not a general fire-resistance classification. The structural engineer, building-control strategy and supplier must confirm the required evidence for the project.
What information should accompany a request for a casing quotation?
Send surveyed dimensions, plans and elevations, exposure classification, profile and finish intent, access requirements, interfaces with other trades and any performance criteria. Include quantities and heights, but do not rely on quantities alone: the supplier needs the geometry and site conditions to prepare a reliable proposal.
The Bottom Line
Decorative casing solutions work best when treated as a coordinated building package: survey the structure, select the material and exposure-appropriate system, define the profile and finish, and verify every project performance requirement before fabrication.
