Accessible Toilet Solutions: Meeting Compliance Standards

Accessibility and Portable Amenities: What You’re Required to Provide

The Disability Discrimination Act 1992 (DDA) and the associated Disability (Access to Premises — Buildings) Standards 2010 apply to temporary facilities on construction sites and at public events, not just permanent buildings. If your site or event is accessible to people with disabilities — including workers and visitors — you need to consider accessible toilet provisions.

This guide covers what’s required, what’s available, and how to ensure your site is compliant.

What Makes a Portable Toilet Accessible?

An accessible portable toilet must meet specific dimensional and functional requirements based on AS 1428.1 (Design for Access and Mobility):

Dimensional Requirements

Internal clear floor space — minimum 1800mm × 1800mm to allow wheelchair turning circle
Door width — minimum 850mm clear opening
Door operation — outward-opening or sliding to not block the accessible space
Grabrails — 32–38mm diameter, positioned at 800–810mm from floor, on both sides of toilet
Toilet height — 460–480mm from floor to seat

Access Path Requirements

Ramp gradient no steeper than 1:14 (or 1:8 for short ramps with handrails)
1200mm minimum clear width at ramp
Level landing at top and bottom of ramp (minimum 1540mm × 1540mm)
Handrails on both sides of ramp where gradient is steeper than 1:20

The Construction Site Welfare Requirement

Under Safe Work Australia’s Code of Practice for Construction Work, where there are 10 or more workers, at least one accessible toilet must be provided if the site employs or is expected to be accessed by a person with a disability. In practice, this means most medium-to-large construction sites should be providing accessible amenities.

WorkSafe inspectors increasingly check for accessible welfare facilities as part of site compliance audits — particularly on government-funded projects where DDA compliance is a contract requirement.

What We Supply

Accessible Portable Toilet Units

The Satellite Industries Maxim Accessible unit is a purpose-built accessible portable toilet meeting AS 1428.1 requirements:

2100mm × 1170mm internal dimensions (exceeds minimum turning space when positioned correctly)
Double-width door (900mm clear)
Fold-down grabrails on both sides
Raised toilet seat to 460mm
Internal privacy bolt with external emergency override

Ramp Solutions

We supply purpose-built fibreglass access ramps that connect to Satellite accessible units, providing a compliant access path from ground level. These can be configured for various ground conditions including gravel, concrete, and soft ground with ground plates.

Accessible Crew Trailers

The Scanvogn crew trailer range includes a separate toilet compartment that can be specified with an accessible configuration — including the wider door, grabrails, and raised pan. This is particularly suited to remote site camps where a permanent accessible facility is required as part of the welfare facilities plan.

Events: Special Considerations

For public events, the ratio of accessible toilets to standard units is typically 1 accessible unit per 50–100 standard units, depending on the expected proportion of attendees with disabilities and the duration of the event. Longer events (full-day or multi-day) require a higher accessible ratio.

The accessible unit should be located:

On the flattest available ground
As close as practical to the main toilet bank
With a clear accessible path from the main entry and accessible parking
Clearly signed with the international symbol of access

Getting Expert Advice

Accessible toilet compliance can be complex, particularly on sites with challenging terrain or where multiple compliance frameworks apply (DDA, AS 1428, state Work Health and Safety legislation, local council event permits). Our team can assist with specifying a compliant accessible amenities solution for your specific site conditions.