MSB Group steel-framed building under construction

Structural Mezzanine Floors

MSB Group designs and installs structural mezzanine floors as part of your steel-framed building - engineered into the structure, not fitted around it.

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Structural Mezzanine Floors, Engineered Into the Frame

A mezzanine floor doubles the usable space in a building without doubling the footprint - but only if it's designed and installed as part of the building's structure, not bolted in as an afterthought. MSB Group designs and installs structural mezzanine floors as an integrated part of your steel-framed building project. Because we fabricate the primary steel frame in-house, mezzanine floors are engineered into the structure from the design stage - not added on afterwards.

“One structural engineer, one set of calculations - not two structures designed in isolation.”

Forest of Dean, Gloucestershire
Retrofit & new-build capable
Fabricated alongside your frame
Projects
287+
Value of spaces designed
£90m+
Years experience
35+

Mezzanine Floors We Design and Install

Steel fabrication in progress at MSB Group's in-house facility

New-Build & Retrofit Mezzanines

Structural mezzanine decks designed into new steel-framed buildings from the outset, or added within existing steel-framed buildings engineered to work with the existing frame and foundations.

Structural steel design and engineering calculations at MSB Group

Storage & Warehousing Mezzanines

Additional floor area for pallet storage, racking or general warehousing, designed to the loading you specify.

Mezzanine floor installation on site by MSB Group

Office, Welfare & Production Mezzanines

Mezzanine floors built for office space, staff welfare facilities or meeting rooms, plus platforms designed to support machinery, plant or production line equipment.

Considering a mezzanine floor?

Share your building and intended use for a feasibility discussion.

MSB Group's in-house erection team fitting steel roof trusses at height from mobile access platforms

The Advantage

Why Integrate Your Mezzanine with the Building Structure

When we know a mezzanine is required at design stage, columns, bracing and foundations are sized to carry it from day one - no retrofitting the primary structure later.

One structural engineer, one set of calculations

Your mezzanine loading is designed by the same team that designs your building's primary steelwork.

Fabricated alongside your building's steelwork

Mezzanine steelwork is fabricated at our Forest of Dean facility alongside the rest of your frame, on the same programme.

One contract

Mezzanine design, fabrication and installation is included in your MSB building contract - no separate specialist, no separate invoice.

Industries We Serve

Steel-framed industrial and warehousing units at Longhope Business Park, built by MSB Group

Industrial & Warehousing

Portal frame warehouses, distribution hubs and production units. Clear spans, high eaves and heavy-duty floors built to your operational spec.

Steel-framed self storage facility built by MSB Group UK

Self Storage

Multi-storey and single-level storage facilities. Column layouts planned around unit configuration to maximise lettable space.

Steel-framed retail development built by MSB Group UK

Retail & Roadside

Trade counters, showrooms and roadside units. Fast programmes and shopfront-ready envelopes that meet brand standards.

Steel-framed food and drink manufacturing facility built by MSB Group UK

Food & Drink Manufacturing

Production and cold storage facilities built for hygiene, temperature control and wash-down, with compliant finishes throughout.

Steel-framed transport and motor trade facility built by MSB Group UK

Transport, Logistics & Motor Trade

Depots, workshops and commercial vehicle centres. Wide bays, inspection pits and heavy-duty doors sized for HGV access.

Steel-framed commercial showroom and office building built by MSB Group UK

Commercial & Offices

Office buildings, business parks and mixed-use schemes delivered to full fit-out, including M&E, partitions and welfare.

Large-span steel structure for a leisure and climbing venue, built by MSB Group UK

Sport & Leisure

Large-span sports halls, climbing centres and leisure venues. Column-free interiors engineered around the activity inside.

Aerial view of a steel-framed agricultural building by MSB Group UK, built for farm and equestrian use

Agriculture & Equine

Farm buildings, grain stores and livestock housing alongside stables and equestrian arenas, all built as steel-framed structures engineered around your site.

Success Stories

View all projects →
Steel-framed self storage facility built by MSB Group UK in Telford

MSB continues its partnership with Titan Self Storage through a second turnkey phase, enhancing capacity and customer experience across the Telford facility.

Learn more

10,300 Sq.ft

Project size

MSB constructed a 20,000 sq.ft. DAF dealership for Ample Power Ltd, completed within an impressive 8-month timeframe

Learn more

20,000 Sq.ft

Project size

Mezzanine Floors - A Practical Guide

Can You Add a Mezzanine Floor to an Existing Building?

In many cases, yes - subject to the existing frame and foundations having capacity for the additional load. Contact us with details of the existing building and we can advise whether a retrofit mezzanine is feasible.

Do Mezzanine Floors Need Planning Permission?

It depends on the floor area and how the space will be used - some mezzanines fall under permitted development, others need planning permission or trigger a change of use. MSB can advise on your specific project.

What Loads Can a Mezzanine Floor Carry?

We design mezzanine floors to the loading your use requires - from lighter office or welfare loading up to heavy-duty storage, racking or plant loads. Structural design is calculated for your specific application, not a standard load rating.

Frequently Asked Questions

Common questions about our mezzanine floors.

Can you add a mezzanine floor to an existing steel-framed building?

In many cases, yes - subject to the existing frame and foundations having capacity for the additional load. Contact us with details of the existing building and we can advise whether a retrofit mezzanine is feasible.

Do mezzanine floors need planning permission?

It depends on the floor area and how the space will be used - some mezzanines fall under permitted development, others need planning permission or trigger a change of use. MSB can advise on your specific project.

Do you supply mezzanine floors as a standalone product, or only as part of a building project?

Mezzanine floors are typically most cost-effective when designed in as part of a new steel-framed building project. Contact us with your requirements and we'll confirm whether we can support a standalone or retrofit mezzanine.

Let’s deliver your next large-scale project together.

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