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Lift Shafts
Lift Shafts – Complete Guide to Design, Construction & Specifications

When it comes to installing a home lift, the shaft is where it all begins. It’s the structural core that defines performance, safety, and long-term reliability, the foundation for a smooth, quiet, and compliant lift system.

At Lift Shop, most clients’ builders construct the shaft in accordance with our engineering drawings and specifications. This ensures every project meets the required tolerances, load capacity, and building code compliance.

For projects where a complete frame is preferred, we can supply the “Bones Only Shaft by Lift Shop”, a certified internal steel structure that your builder can clad and finish.

Example of a lift shaft layout

Overview: The Role of a Lift Shaft

A lift shaft (or elevator hoistway) is the vertical enclosure that houses the lift cabin, rails, and drive system. It supports structural loads and ensures safe, stable travel between floors. In residential projects, it’s designed for both functionality and architectural integration.

  • Smooth, vibration-free travel
  • Structural stability & noise control
  • Compliance with AS1735 & NCC requirements
  • Ease of future maintenance

Building a Lift Shaft Now, Installing the Lift Later

Increasingly, clients are choosing to build the lift shaft during construction, even if the lift will be installed later. This approach offers flexibility and long-term value.

Benefits of Building Early

  • Reduces future building works and associated costs
  • Future-proofs the home for accessibility and resale
  • Minimises the need for later engineering work, but one load-bearing wall must still be certified

Lift Shop provides shaft drawings and specifications so your builder can construct a compliant,
future-ready shaft now, ensuring a seamless installation when you decide to proceed with your lift.



Who Builds the Shaft?

In most cases, your builder constructs the shaft following Lift Shop’s engineering drawings and requirements.
This method keeps the process efficient and cost-effective while ensuring compliance with all lift standards.

Lift Shop supports your builder with coordination packs, structural load data, and direct technical assistance.
A qualified structural engineer must confirm load capacity before installation.

Lift Shop Specifications for Builder-Constructed Shafts

Wall & Load Requirements

  • Solid load-bearing wall-concrete, blockwork, solid brick, or structural steel
  • No hollow or cavity walls in load-bearing zones
  • Maximum deflection: 1–2 mm on structural members
  • All four sides must be solid and impenetrable

Cladding & Finishes

  • Internal cladding to be smooth, rigid (min. 1.2 mm steel or equivalent)
  • No cladding over steel fixings
  • Glass (if used) to be 10.76 mm laminated safety glass

General Tolerances

  • Internal dimensions within ±10 mm of Lift Shop drawings
  • Walls and door openings plumb within ±5 mm

Self-Supporting Shaft Structure

For homes where a traditional load-bearing shaft is impractical, Lift Shop can supply a self-supporting steel shaft structure, the same framework referred to as our “Bones Only Shaft”.

This pre-engineered structure forms the lift’s complete internal skeleton, eliminating the need for the builder to create a load-bearing shaft from scratch.

Features

  • Supplied without cladding, ready for builder finishing
  • Builder must enclose all four sides for safety (non-removable & non-penetrable)
  • Certified to AS1735 and NCC standards

Speak to Us About Self-Supporting Shafts →

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Glass Shafts by Builders

Whether it’s a stunning coastal view or a lively living space, many clients love the experience of travelling in a lift surrounded by glass, bringing light and visibility into the journey.

While Lift Shop offers a full range of glass shaft options (steel and aluminium framed),
many builders choose to design and construct their own glass enclosures for a fully customised architectural finish.

Glass shafts are constructed by qualified builders to Lift Shop specifications. We integrate our lift systems seamlessly within your chosen glass shaft design.

The results are remarkable, bespoke glass shafts that integrate seamlessly with the home’s design while maintaining Lift Shop’s mechanical precision and safety standards.

 

Lift Shaft Materials & Design Options

  • Masonry or Concrete: durable, fire-resistant, and ideal for new builds.
  • Steel Frame: slim-profile strength for renovations or multi-level homes.
  • Timber Frame: suitable for light-construction homes with internal steel or sheeting reinforcement.

Construction & Coordination

  1. Design Coordination: Lift Shop provides drawings and data for your builder and engineer.
  2. Pit Formation: Builder forms and waterproofs the pit to the required depth.
  3. Shaft Construction: Builder constructs according to approved materials and tolerances.
  4. Cladding & Finishing: Smooth, non-removable internal lining applied after structure complete.
  5. Engineering Sign-Off: Certified load and deflection compliance required prior to installation.
  6. Lift Installation: Performed by Lift Shop once shaft approved and ready.
Builder’s Quick Reference
RequirementA SeriesC SeriesE Series
Pit Depth150 mm150 mm270 mm
Headroom2600 mm2550 mm2750 mm
Load-Bearing WallYes, drive sideYes, drive sideYes, drive side
External Cladding3 mm builders ply3 mm builders ply3 mm builders ply
Internal WallsNon-penetrable or timber with 20 mm plyNon-penetrable or timber with 20 mm plyNon-penetrable or timber with 20 mm ply
DrainageNot requiredNot requiredNot required

Compliance & Australian Standards

  • AS1735.1–18 — Lift design, safety & performance
  • AS1735.12 — Accessibility & car dimensions
  • EN81-41 — Platform lift compliance
  • NCC Volume 1 — Fire, egress & acoustic provisions

Frequently Asked Questions

Can I build the shaft now and install the lift later?

Yes. Lift Shop regularly assists homeowners who want to build the shaft during construction and add the lift later. A cost-effective and future-proof solution.

What is a self-supporting shaft?

It’s a galvanised steel structure supplied by Lift Shop that supports the lift without a load-bearing wall. Your builder then encloses it for safety.

Can Lift Shop provide a glass shaft?

Yes. We offer glass shaft solutions or can work alongside your builder to integrate a custom glass design.

Who is responsible for the shaft build?

Your builder, following Lift Shop’s engineering drawings and requirements. We provide full support during construction.

Why Choose Lift Shop

  • 29+ years of luxury residential lift experience
  • 10,000+ installations across Australia and the U.S.
  • End-to-end builder coordination and compliance documentation
  • Option for self-supporting or Bones Only Shaft structures
  • Exceptional customer service and aftercare

Contact Us

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Build It Right from the Start

The lift shaft defines your lift’s safety, comfort, and visual integration.
Whether constructed by your builder or supplied as a self-supporting Bones Only Shaft,
Lift Shop ensures compliance, precision, and effortless coordination from start to finish.