Swimming Pool Structural Engineering
Swimming pools are classified as Class 10b structures and generally require building approval through a certified building surveyor. Pools must be designed and constructed in accordance with Australian Standards, the Building Act 1975, and the Building Regulation 2006. At SNG Engineers, we provide tailored swimming pool designs based on site-specific conditions, drawing on years of experience in designing and inspecting pools across Brisbane and Queensland.
We specialise in concrete pool design, including suspended pools, cantilevered pools, and boutique, bespoke pool structures — sloping sites, elevated decks, and architecturally ambitious pool designs that call for more than a standard in-ground structure.
Swimming Pool Design Services Offered by SNG Engineers
Concrete In-Ground Swimming Pools
Standard in-ground concrete pool shells, structurally designed and reinforced to suit the site's soil conditions and any adjacent structures or boundaries.
Concrete Out-of-Ground Swimming Pools
Pools raised above natural ground level, requiring engineered retaining and support structures around the pool shell to carry the additional soil and hydrostatic loads.
Concrete Suspended Swimming Pools
Pools structurally suspended over a lower level — a garage, basement, or sloping site — supported on an engineered slab and beam system designed to carry the full weight of the water and structure.
Cantilevered Swimming Pools
Pools that extend beyond their supporting structure with no columns underneath the cantilevered section, requiring specialist structural design to manage the deflection and load transfer back into the building.
Boutique & Bespoke Pool Structures
Architecturally distinctive pools — infinity edges, split levels, unconventional shapes, or integration with an elevated deck or existing structure — designed to suit the specific engineering challenges each concept presents.
Concrete Masonry Swimming Pools
Pool shells built from reinforced concrete masonry block, tied together with vertical and horizontal steel reinforcement — a durable alternative to poured concrete for suitable sites.
Frequently Asked Questions
Do I need a structural engineer for my swimming pool?
Yes — swimming pools are classified as Class 10b structures under the National Construction Code and require structural design and documentation to gain building approval through a certified building surveyor, in accordance with the Building Act 1975 and Building Regulation 2006.
What's the difference between a suspended and a cantilevered pool?
A suspended pool sits over a lower level — a garage, basement, or steeply sloping site — and is supported by an engineered slab and beam system underneath. A cantilevered pool extends out past its supporting structure with no columns beneath the cantilevered section, which requires specific engineering to manage deflection and transfer the load back into the building.
Can you design a pool on a sloping or difficult site?
Yes — sloping sites are where suspended and out-of-ground pool designs are most often used. We assess the site's soil conditions and levels and design the supporting structure (retaining, piers, slab and beam systems) needed to carry the pool safely on the given site.
What does 'bespoke' or 'boutique' pool design mean?
It refers to pools with architecturally distinctive features — infinity edges, split levels, unconventional shapes, or integration with an elevated deck or existing structure — that fall outside a standard in-ground pool shell and need engineering tailored to that specific concept.
Do you work with my pool builder, or design the pool from scratch?
Both — we typically provide the structural design and documentation alongside your pool builder's own design and certification process, but can also advise from the concept stage on sites where the structural approach will shape what's possible.