Level-Access vs Low-Threshold Shower: What's the Difference?
Last updated 13 June 2026 · Comparison · 5 min read
A low-threshold shower has a 40–50mm lip. A level-access shower has no lip at all — the floor is rebuilt so the shower area is flush with the rest of the bathroom. The right choice depends on whether you can lift a foot over a small step safely.
The physical difference
A low-threshold tray sits on top of the existing floor. The 40–50mm lip is the side of the tray itself. Modern low-profile trays are slim enough that most ambulant users step over them without thinking.
A level-access install removes that lip by lowering the substrate or raising the rest of the floor. The shower area becomes a continuous surface with the bathroom floor — usable by a wheelchair, walker, or shower chair on castors.
Price difference
Expect to pay £1,000–£1,500 more for level-access on a like-for-like layout. The extra is labour: lowering joists or cutting concrete, plus the tanking and gradient build.
Which one will the OT specify?
If you use a wheelchair or a shower chair on wheels, the OT will normally specify level-access explicitly — and the council grant funds it accordingly. If you're ambulant with a walking aid, a low-threshold tray is usually the recommended balance of safety and value.
Future-proofing
If mobility is likely to worsen significantly over the next 5 years, level-access is worth the extra spend now. Converting a low-threshold install to level-access later means rebuilding the floor again.
Frequently asked questions
Is a 40mm step really a problem?
For most ambulant adults, no. For wheelchair users, anyone with severe Parkinson's or post-stroke mobility loss, or carers who lift, yes — it becomes a daily hazard.
Can a level-access shower be fitted in any bathroom?
Almost always, but the build-up varies. Concrete floors need a section cut out and a new gradient laid; timber-joisted floors need joists lowered or a pre-formed panel installed. We'll confirm at the free home survey.
Does level-access leak more easily?
No, when tanked correctly. A continuous waterproof membrane bonded to the drain flange and lapped up the walls is more reliable than relying on a tray-floor silicone seal.
Will the council pay extra for level-access?
Yes — the grant funds whatever the OT specifies as essential. If the OT writes 'level-access', the council pays for level-access, not a low-threshold cheaper alternative.
Related reading
Free home survey, no obligation
We design and install walk-in showers and wet rooms across Central Scotland. Quotes are written in the format councils require for grant applications.