Through-Floor Lift vs Shaft Lift

What actually separates the two

Both lifts do the same job — carry one or two people, or a wheelchair user and a carer, between the floors of a house. What differs is the structure around the car. A through-floor lift is a sealed unit that carries its own guide rails and drive; when it rises, it passes through a motorised aperture in the ceiling that opens for the car and closes flush once it has gone up, so the hole in your floor is not left open. A shaft lift, by contrast, runs inside a purpose-built enclosed hoistway. That enclosure is the expensive, disruptive part — and it is also what unlocks more levels, bigger cars and better finishes.

The practical upshot is that a through-floor lift is usually the faster, cheaper retrofit, while a shaft lift is the more flexible — and more costly — long-term fit. If you are still deciding whether a home lift suits your house at all, start with our overview of home lifts in Australia, which covers the main lift types side by side.

Choose a through-floor lift if…

A through-floor lift is the right call for the majority of two-storey homes, and especially for accessibility retrofits. Choose it if you are connecting exactly two levels, want to avoid major structural work, and are fitting a lift into an existing home rather than a new build. Because it needs no separate shaft, it can often be installed in days rather than weeks, and it takes up very little floor area — the car simply sits in a corner of a downstairs room and rises through the ceiling above. That compact footprint is why through-floor units feature so heavily in our guide to small lifts for homes.

It is also the more affordable option, which matters when a lift is being funded privately or partly through a mobility program. The trade-off is that you are generally limited to two stops and to the manufacturer's standard car sizes and finishes.

Choose a shaft lift if…

A shaft lift makes sense when a through-floor unit cannot do what you need. Choose it if you have to serve three or more levels, want a larger car or a specific door configuration, or are building a new home where the shaft can be designed in from the start rather than retrofitted later. The enclosed hoistway also gives you a fully separated structure between floors, which can simplify fire and acoustic detailing in a larger or higher-specification home.

The cost of that flexibility is real. You are paying for the lift and for the shaft itself — the concrete, framing or masonry that forms the enclosure — which is often the single largest line in the quote. Our breakdown of lift shaft construction cost sets out what that structural work typically adds, and why it varies so much between a new build and a retrofit.

The cost gap, in context

The headline difference buyers feel is price. Compact through-floor lifts start at around $25,000 installed for a standard two-stop unit, based on supplier-stated indicative pricing as of Q2 2026 (hipages home lift cost guide; supplier starting prices) — though that figure assumes a straightforward install without significant building works. A shaft lift starts higher and climbs with the cost of the hoistway, so the all-in figure depends heavily on whether the shaft is being built into a new home or cut into an existing one.

Because the building works are where most of the variation — and most of the bill shock — lives, treat any starting price as a floor, not a quote. Our full guide to home lift cost breaks down the drivers, and for the enclosed option specifically, the lift shaft construction cost page covers the structural component that a through-floor lift avoids entirely.

Standards, safety and space

Both lift types, when installed in a private home, are built to the same Australian Standard — AS/NZS 1735.18:2002, which covers automatically controlled, low-speed passenger lifts in private residences. Neither is inherently safer than the other; both use enclosed cars, interlocks and controlled apertures or doors to prevent falls. A common worry with through-floor lifts is the open hole in the ceiling, but the aperture is motorised and closes off the opening whenever the car is on the lower floor, so there is no exposed gap in normal use.

Where they differ practically is space and structure. A through-floor lift needs a clear landing zone directly above the car and a floor structure that can take the load; a shaft lift needs room for the enclosure on both levels. If you are checking whether either will physically fit, our guide to home lift space requirements covers the minimum dimensions and the structural checks an installer will make.

The verdict

For most two-storey Australian homes — and for the majority of accessibility retrofits — a through-floor lift is the better starting point. It costs less, installs faster, takes minimal space, and meets the same residential standard as a shaft lift. Choose a shaft lift when you genuinely need what it adds: three or more levels, a larger or higher-specification car, or a shaft designed into a new build from day one.

The honest way to settle it is against your own home, because the floor structure, the levels you need and the finish you want decide the price far more than the lift type alone. Get free quotes from lift companies who install both, and ask each to price the through-floor option and the shaft option so you can compare the all-in figures side by side.