Double Skin Steel Partitions & Partitioning Systems

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What are Double Skin Steel Partitions

Double skin steel partitioning is a premium modular partitioning system constructed from two layers of steel panels separated by an air cavity and insulating material, typically high-density Rockwool infill. This dual-layer construction is welded and bolted to sturdy vertical support posts with floor and ceiling anchors, creating a robust, integrated system. The panels are prefabricated and delivered ready to install, with a smooth, professional finish on both the interior and exterior surfaces, making minimal visible joints and offering a seamless appearance.

Storwell Systems combines over 40 years of specialist expertise in designing, supplying, and installing premium steel partitioning solutions throughout the UK. With a deep understanding of acoustic requirements, thermal insulation, and fire safety compliance, Storwell delivers bespoke double skin configurations tailored to demanding industrial and commercial environments. The company’s commitment to quality products, expert design consultation, and professional installation ensures that your double skin partitions not only perform exceptionally but also create visually professional workspaces. Storwell’s comprehensive approach includes acoustic assessment, custom specification, precision installation, and ongoing support to optimise your facility’s functionality, comfort, and appearance.

Data Sheets

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Double Skin Steel Partition Specifications

Panel construction	50mm nominal double-skin panel: a 1.0mm internal steel channel faced both sides with 0.8mm (21g) galvanised steel sheet, with a 50mm high-density Rockwool RW45 rigid slab infill. Panels lock together via an internal steel biscuit, adding rigidity and a concealed wire-way.
Panel thickness	50mm nominal
Acoustic performance	Up to 34dB Rw for a solid partition; 31-32dB Rw for glazed and doored configurations (sound tested).
Standard panel heights	2440mm, 2700mm and 3000mm (bespoke heights to order). Dado height 1086mm.
Standard panel widths	300mm, 500mm and 950mm (bespoke widths to order).
Configurations	All-solid, half-glazed or solid/glass/solid elevations.
Glazing	6.4mm laminated glass as standard; 4mm toughened double-glazed units and perspex available on request.
Support posts (mullions)	50 x 50mm or 100 x 50mm RHS for 2-way, 3-way and corner junctions, complete with base plates.
Doors	Single or double steel door sets: galvanised, powder-coated leaves in extruded aluminium frames, with stainless steel hinges, mortice sash lock and euro-profile cylinder. 430 x 430mm vision panels. Sliding and automatic doors available.
Core options	RW45 rigid mineral-fibre slab as standard; cardboard honeycomb and bonded cores available, plus factory-fitted timber inserts for additional fixing strength.
Finish	All panels, doors and components electrostatically powder-coated, in standard RAL colours.

Benefits of Double Skin Steel Partitioning Systems

Superior Soundproofing and Acoustic Control – The dual-layer construction with insulating Rockwool infill provides exceptional sound absorption and noise reduction. Sound waves are absorbed by the insulating middle layer, significantly reducing noise transmission between spaces compared to single skin partitions. This makes double skin systems ideal for creating quiet, productive work environments within bustling warehouses or factories.

Enhanced Thermal Insulation –The air cavity and insulating material between the two steel skins provides superior thermal insulation, helping to retain heat in winter and keep spaces cooler in summer. This improved energy efficiency can result in reduced heating and cooling costs, creating more comfortable work environments for staff while lowering operational expenses.

Professional Aesthetic Appearance –Unlike single skin partitions, double skin systems present a smooth, finished surface on both interior and exterior sides with minimal visible joints. This professional appearance is ideal for client-facing areas, executive offices, boardrooms, and workspace environments where company image is important. Office partitioning systems are available in both single skin and double skin configurations, depending on your requirements for sound insulation and thermal performance.

Superior Durability and Strength –The double-layer steel construction provides exceptional rigidity and impact resistance, making double skin partitions more robust than single skin alternatives. They withstand heavy machinery impacts, constant traffic, and demanding industrial operations without degradation or damage.

Fire Rating Compliance –Double skin systems offer extensive customisation including various panel heights, widths, glazed or full-glass configurations, multiple door styles, colour finishes, and optional internal cable and piping routing. This versatility allows the system to be tailored to specific aesthetic and functional requirements.

Demountable and Relocatable –Despite their premium construction, double skin partitions are fully demountable and can be relocated or reconfigured as business needs evolve, eliminating costly renovation work and supporting flexible workspace management.

Uses of Double Skin Dividing Walls

Office Spaces and Workstations

Client Reception and Executive Areas

Break Rooms and Staff Facilities

Clean Rooms and Hygiene-Critical Areas

Production Line Separation

Hazardous Material Isolation

Sensitive Storage and Secure Areas

Machinery and Equipment Enclosures

Quality Control and Testing Areas

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What are the benefits of double skin steel partitions?

Double skin steel partitions offer a range of benefits including

Better Insulation of noise and temperature

Aesthetics – The frame is enclosed and so the patiotion looks flush on both sides – perfect for customer facing areas or clean rooms.

Flexibility: The panels are demountable and relocatable giving them a significant benefit over more permanent walls.

Security & Durability: The double skin build makes the wall more secure and tamper proof.

Where are double skin partitions used?

We recommend using double skin steel partitioning where the added benefits of their construction over single skin steel partitioning warrants their use. This can be in evvironments that would benefit from additionalsound proofing, such as offices or staff break rooms. The temperature insulating functionality also makes them ideal candidates for these kinds of spaces meaning that staff can work, or take breaks, in quieter rooms at a comfortable temperature. Their construction is also ideal for clean rooms and laboratories.

Can the partitions be relocated or reconfigured?

Yes, this is one of their key benefits over brick walls. The partitions sit in channels and are clipped together and they can easily be removed or reconfigured should your requirements change.