For many adults, a finished toilet seat height of about 440–480 mm is comfortable. Measure from the finished floor to the top of the fitted seat, not the ceramic pan. There is no single best accessible height: the user’s stature, mobility and transfer needs must be assessed individually. Height is one part of choosing the right toilet for the bathroom and its users.
Choosing and testing the height
Choose a height that lets the user place both feet firmly on the floor and sit down and stand up with control. A higher seat reduces the amount of hip and knee bending, which may help some seniors and people with joint stiffness, weakness or limited mobility. However, a seat is too high if the user’s feet hang or they feel unstable.
Before ordering, test the proposed toilet seat height using a firm, stable seat of the same measured height:
- Wear usual footwear and sit with both feet flat on the floor.
- Check that the user can sit and rise safely using their normal mobility aid or assistance.
- Repeat the movement several times. Stop if it causes pain, dizziness or loss of balance, and seek advice from an occupational therapist or other appropriate clinician.
- Confirm the toilet’s complete height with the seat fitted; pan-height specifications alone are insufficient.
For a shared bathroom, avoid choosing solely for the tallest user. A higher toilet may help one person but leave a shorter person without secure foot support. After confirming comfort and compatibility, compare the toilet’s WELS rating and flushing performance.
Comfort height and accessible toilets
A comfort-height or raised-height toilet is not automatically suitable for every senior or compliant for an accessible bathroom. Wheelchair seat height, transfer technique, strength, balance and the surrounding bathroom layout can all affect the safest choice.
For a prescribed accessible bathroom or significant mobility adaptation, seek an occupational therapist’s assessment before selecting the toilet. Where accessibility provisions apply, a qualified designer, certifier or other appropriate adviser should confirm the current NCC and adopted AS 1428.1 requirements for the building and approval pathway.
Toilet replacement involves water-supply and sanitary plumbing connections. Do not alter these connections yourself. Learn the warning signs of an incorrectly installed toilet, then ask our licensed toilet replacement plumbers to confirm the product dimensions and arrange installation.