Geometry and consistency
Inconsistent risers, goings, landings or nosings can increase the likelihood of trips and falls, even where individual dimensions appear close to a current reference value.
Queensland buyer guide
Staircase regulations QLD.
A practical guide to common stair, landing, handrail and barrier concerns observed during residential property inspections.
Buyer overview
Stair requirements depend on context.
The applicable requirements may vary with the building class, approval date, stair location, use and whether later alterations have been completed. A pre-purchase inspection identifies observable safety concerns; it does not retrospectively certify a staircase.
Head clearance
Restricted clearance above a stair or landing can present a head-strike hazard. A commonly referenced current minimum is 2,000 mm, subject to the applicable NCC provisions.
Handrails and barriers
Missing, loose, climbable or low barriers and handrails can present a fall risk. Fixings and concealed structural adequacy cannot be confirmed visually.
Inspection scope: Premise inspections are visual, non-invasive and limited to reasonably accessible areas at the time of inspection. They do not certify regulatory compliance, approvals, concealed construction or future performance.
Reference points
Common current residential reference points.
These values are an orientation guide only and must not be used as a compliance certificate.
| Element | Common reference | Important qualification |
|---|---|---|
| Riser height | 115–190 mm | Risers within a flight should be consistent and the applicable construction provisions must be confirmed. |
| Going depth | 240–355 mm | Measurement method, nosing profile and stair type affect assessment. |
| Head height | Generally at least 2,000 mm | Measured vertically above the nosing line or floor surface in accordance with the applicable provisions. |
| Barrier openings | Generally must resist passage of a 125 mm sphere where a barrier is required | Different rules can apply to particular locations and buildings. |
| Barrier height | Commonly 1,000 mm at landings and 865 mm along stair flights | Height, fall distance, climbability and building use affect requirements. |
The NCC and referenced standards must be applied to the particular building and approval context. Existing work is not automatically defective merely because it differs from a current provision.
Practical checks
What buyers should look for and verify.
Observable warning signs
- Loose, damaged or missing handrails or balustrades.
- Large openings, horizontal climbable elements or low barriers where a fall is possible.
- Irregular step dimensions, worn nosings, slippery finishes or inadequate lighting.
- Restricted head clearance, including below beams, bulkheads or altered ceilings.
- Movement, decay, corrosion or cracking affecting stair supports or fixings.
Recommended next checks
- Restrict access where there is an immediate fall or collapse concern.
- Obtain building approval and alteration records where stair work appears modified.
- Use a licensed builder or relevant specialist for repair advice.
- For significant repair work, confirm licensing and obtain multiple comparable written quotes based on the same scope.
- Use a building certifier where compliance, approval status or building classification must be established.
- Obtain engineering assessment where structural movement or support adequacy is uncertain.
Limits of a visual inspection
What the inspection cannot establish by itself.
Not confirmed
- Concealed fixings, reinforcement and framing adequacy.
- The approval status or date of staircase construction.
- Full dimensional compliance unless a separately agreed specialist assessment is completed.
- Slip resistance testing or performance under load.
- Accessibility compliance or suitability for a particular occupant.
When specialist input is appropriate
- Building certifier for approval and compliance questions.
- Structural engineer for movement, support or load-path concerns.
- Licensed builder or stair contractor for repairs.
- Occupational therapist or access consultant for occupant-specific access needs.
A visual observation of a dimensional variation is evidence of the observed condition only. The cause, applicable regulatory benchmark and required rectification may require document review and specialist assessment.
Measurement tool
Indicative stair layout calculator.
Enter actual measurements to compare basic geometry with common current residential reference ranges. The result is not a compliance assessment.
Indicative results
Not determined: approvals, construction date, consistency across the flight, winders, landings, slip resistance, handrails, barriers, concealed fixings, structural adequacy or the NCC provisions applicable to the work.
Official information
Authoritative sources and further reading.
Requirements can change and may depend on the building classification, approval date and work undertaken. Confirm current obligations with the relevant authority or appropriately licensed specialist.
Common questions
Frequently asked questions.
Does an older stair have to meet every current NCC dimension?
Not necessarily. The relevant requirements depend on when the work was approved and constructed, the building classification and any later alterations.
Can Premise certify a staircase?
No. Premise can report observable conditions and apparent safety concerns within accessible areas. Certification requires the appropriate certifier or specialist.
Is low head clearance a safety hazard?
It may be classified as a Safety Hazard where the observed clearance creates an apparent head-strike risk. The actual measurement and circumstances should be recorded.
HouseWorthy packages
ONE PROPERTY
Best value
THREE PROPERTIES
Research the property before the physical inspection.
$29
Property Intelligence Report
Property, planning, environmental, utility and buyer due-diligence information with practical next checks.
View the $29 report$59
Buyer Shortlist
Three report credits to compare risks, advantages and next checks across different properties.
View the $59 shortlist$50 Premise inspection offer: purchase an eligible HouseWorthy package, then book and complete a combined Premise building and timber pest inspection for the same property within 30 days. Supply the purchase email or Stripe receipt when booking. Conditions apply.
HouseWorthy is a property information service by Premise Inspections. It is not a building and timber pest inspection, valuation, engineering assessment, approval search, certification or guarantee.
Request an inspection quote
Provide the available property details and we will email an indicative quotation. Final pricing may vary with the property’s size, construction, age, condition, location and accessibility.
Premise Inspections
Independent building and timber pest inspections
Reports generally available within 24 hours of the inspection
What happens next
- 1Receive your indicative quoteWe email the estimate using the property details supplied.
- 2Reply if you wish to proceedProvide the selling agent’s name and contact details.
- 3Confirm the bookingWe coordinate access and confirm the inspection arrangements.
Prefer to speak directly?
Call 1300 396 585
info@ppbi.com.au
Get the facts before you commit.
Request a clear written quote for your property inspection.