When installing grab bars for an accessible water closet, what is the required length for the rear grab bar, measured from the water closet's centreline?

Question: When installing grab bars for an accessible water closet, what is the required length for the rear grab bar, measured from the water closet's centreline?

Answer options:

• 600 mm, centred on the water closet.
• Required length can vary, but must extend at least 300 mm past the centreline on each side. ✅ Minimum 900 mm in length, centred relative to the water closet.
• 800 mm, with one end extending 150 mm beyond the centreline.

Correct answer: Minimum 900 mm in length, centred relative to the water closet.

Explanation: According to barrier-free design standards, the rear grab bar for an accessible water closet must be a minimum of 900 mm in length and centered relative to the water closet. This ensures adequate support and reach for users transferring to and from a wheelchair. Other lengths or eccentric placements do not consistently meet accessibility requirements.