Shop & Commercial Fitout Structural Design
Shop and commercial fitouts often involve new openings, mezzanine floors, or structural alterations to an existing building — work that needs to be engineered and documented for landlord and building approval before a tenancy can open.
SNG Engineers provides structural design and certification for retail, hospitality, and commercial fitouts, working directly with tenants, shopfitters, and landlords to keep alterations compliant with the base building structure and ready for council and building certifier sign-off.
Shop Fitout Design Services Provided by SNG Engineers
New Openings & Structural Alterations
Structural design for new shopfront openings, internal wall removals, and alterations to an existing tenancy — including beam and support design where the alteration affects a load-bearing element of the base building.
Mezzanine Floor Design
Structural design of mezzanine floors added within an existing retail or warehouse tenancy for additional storage, office, or display space, including the new floor structure, supporting steelwork, and connections back to the base building.
Non-Load-Bearing Wall & Facade Engineering
Structural design of non-load-bearing partition walls, glazed shopfronts, and facade elements for out-of-plane wind and seismic actions under AS 1170.4 — loads these elements need to resist even though they don't carry the building's gravity loads.
Signage & Fixed Equipment Connection Design
Structural design of the connections fixing shopfront signage, awnings, and fixed commercial kitchen or display equipment back to the building structure — a common point of failure when it isn't specifically engineered, since these loads and fixings aren't part of the base building design.
Landlord & Base Building Certification
Assessment of proposed fitout works against the base building's structural capacity, and preparation of the structural certification landlords and building certifiers require before fitout works can proceed or a tenancy can open.
From a single new opening through to a full mezzanine floor, SNG Engineers delivers fitout structural designs that are practical for the shopfitter to build, compliant with the base building structure, and properly documented for landlord and certifier approval.
Frequently Asked Questions
Do I need a structural engineer for a shop or commercial fitout?
In most cases, yes — landlords and building certifiers typically require structural certification for any fitout work that alters the base building, adds new loads (such as a mezzanine or heavy equipment), or creates a new opening in a wall. We can assess your specific fitout scope and confirm what's needed.
What is a mezzanine floor and does it need engineering?
A mezzanine is an intermediate floor added within an existing tenancy, typically for extra storage, office, or display space. Because it adds a new floor structure and load path into the building, it always requires structural design and certification — including the floor framing, supporting posts or steelwork, and how those loads transfer back to the base building.
Do non-load-bearing partition walls and shopfronts need structural design?
Yes — even though they don't carry the building's gravity loads, non-load-bearing walls, glazed shopfronts, and facade elements still need to be designed to resist out-of-plane wind and seismic actions under AS 1170.4, and to be properly braced and connected back to the base building structure.
Who provides the structural certification for a landlord or building certifier?
We assess the proposed fitout against the base building's structural capacity and provide the structural drawings and certification the landlord and building certifier need before works proceed or the tenancy opens — coordinated directly with your shopfitter, architect, or building certifier.
Can you engineer the connections for heavy signage or kitchen equipment in a fitout?
Yes — shopfront signage, awnings, and fixed commercial kitchen or display equipment introduce loads and fixings the base building wasn't originally designed for. We engineer the connections back to the structure specifically, which is important since an under-engineered fixing here is a common point of failure.