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AS 1657 & SANS Compliant · Factory-Direct Cat Ladders

AS 1657 Cat Ladder

AS 1657 and SANS compliant steel cat ladders for regional roof access projects. Order-level DoC, MTC 3.1 and structural calculations with every order — quote within 24 hours.

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AS 1657 OSHA 1910.28 SANS DoC & MTC Included
AS 1657 cat ladder assembled steel roof access ladder from the factory
20+

Years Manufacturing

50+

Countries Exported

24h

Quote Response

20+

Years Manufacturing

AS 1657 Explained — What the Standard Requires

AS 1657 Cat Ladder

An AS 1657 cat ladder is a fixed steel ladder engineered to AS 1657 — Fixed platforms, walkways, stairways and ladders: design, construction and installation — with SANS compliance available for South African projects. It defines the geometry, loading and fall protection that keep roof and platform access safe for maintenance crews. An access route that fails inspection means stop-work orders and retrofit scaffolding at site rates.

  • Rung spacing 250–300 mm per AS 1657

    Our standard build 225–230 mm — re-pitched to the AS 1657 band for Australian orders

  • 1.5 kN per-rung load rating

    Verified by engineer-signed structural calculation sheets

  • Wall fixings at ≤1500 mm centres

    Our factory build standard — wall brackets hold the stiles rigid under climbing and fall loads

  • 25 m max transportable section

    AS 1657 specifies rest platforms at 6 m intervals on long climbs

  • Cage or fall-arrest by height

    Safety cage or vertical fall-arrest system matched to the climb height

AS 1657 cat ladder HDG rung and stile detail

Order-Level Compliance File

Compliance Docs with Every Order

AS 1657 & SANS compliant; DoC, MTC and structural calc with every order. Because we fabricate maker-direct in our Shijiazhuang factory, the compliance file is produced at the source — no chasing paperwork after delivery.

  • DoC — Declaration of Conformity

    Order-level declaration to AS 1657, SANS & OSHA 1910.28

  • MTC 3.1 Material Certificate

    EN 10204 3.1 for Q235B / SS304 / SS316 heats

  • Structural Calculation Sheet

    Engineer-signed, covering loading, fixings and fall protection

  • In-house QC & mill certificates

    Galvanizing checked to ISO 1461; mill certificates (EN 10204 3.1) confirm the stainless grade before dispatch

AS 1657 cat ladder factory quality inspection and compliance check

AS 1657 Compliant Configurations

AS 1657 Cat Ladder Specifications

Every cat ladder as 1657 configuration is made-to-order with the engineered parameters below — measured to your climb height and fixing points.

SpecificationValue
ComplianceAS 1657 · SANS · OSHA 1910.28 · EN ISO 14122-4
MaterialQ235B HDG 85–100 µm · SS304 · SS316 · Aluminium · GRP
Rung Load1.5 kN per rung
Rung Spacing225–230 mm
Stile Fixing Spacing≤1500 mm centres
Max Single Section25 m transportable (rest platforms at 6 m intervals per AS 1657)
Fall ProtectionSafety cage or vertical fall-arrest system
FinishHot-dip galvanized ISO 1461 · acid-pickled stainless
Docs IncludedDoC · MTC 3.1 · structural calculation sheet
AS 1657 cat ladder HDG steel rung and stile specification detail

Cat Ladder with Cage

Galvanized or stainless caged ladder for climbs over the AS 1657 fall-protection threshold.

With Landing Platform

Rest platforms at 6 m intervals per AS 1657 keep long climbs compliant; single transportable sections run to 25 m (factory limit).

HDG Steel, ISO 1461

Q235B hot-dip galvanized at 85–100 µm for outdoor roofs, tanks and coastal sites.

Custom Cat Ladders

Any height, material or cage layout — fabricated to your drawings with free review.

20+ Years · 50+ Export Countries

AS 1657 Cat Ladder Supplier

Dengtai has shipped cat ladders to 50+ countries across chemical plants, water tanks, substations, warehouses and roof-access retrofits — every install engineered to the applicable standard, from AS 1657 to SANS, OSHA and EN ISO 14122-4.

2004

Exporting since

50+

Export countries

20+

Years manufacturing

24h

Quote response

Reference projects are shared in anonymized form — plant type, climb height, standard and solution — so you can compare yours. Ask for a matching case study with your quote.

AS 1657 cat ladder factory-direct mixed stack of export ladders

Factory-Direct Pricing

Factory-Direct AS 1657 Cat Ladder

Factory-direct pricing, 15–25 day production, quote within 24 hours. Itemized quote with free drawing review — no distributor markup.

Factory-Direct Per-Metre Rates

HDG cat ladder quoted per metre of climb; a complete 6 m caged set quoted as one itemized ex-works package.

Factory-Direct

No distributor markup — quote direct from the production floor in Shijiazhuang.

24h Itemized Quote

Line-by-line pricing for material, galvanizing, cage and docs within one working day.

15–25 working days production EXW · FOB · CIF Flat-pack or fully assembled

Get an AS 1657 Cat Ladder Quote

Get an AS 1657 Cat Ladder Quote

Free itemized quote in 24 hours with compliance docs on every order. Tell us your climb height, material and quantity — we handle the rest.

  • 24h itemized quote
  • Free drawing review
  • DoC, MTC 3.1 & structural calcs included
+ More specifications (height, quantity, cage, standard)

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AS 1657 Cat Ladder FAQ

What is an AS 1657 cat ladder?
An AS 1657 cat ladder is a fixed steel ladder engineered to AS 1657 — Fixed platforms, walkways, stairways and ladders: design, construction and installation — with SANS compliance available for South African projects. We build them in Q235B hot-dip galvanized steel (HDG 85–100 µm) or SS304/SS316 stainless, with 225–230 mm rung spacing and a 1.5 kN per-rung load rating.
What does AS 1657 require for fall protection?
AS 1657 requires rung spacing, stile geometry and fall protection matched to climb height — a safety cage or a vertical fall-arrest system. Wall fixings at or below 1500 mm centres are our factory build standard. AS 1657 calls for rest platforms at 6 m intervals on long climbs; our maximum single transportable section is 25 m. Our engineer-signed structural calculation sheet documents all of this for your order.
Is an AS 1657 cat ladder also SANS and OSHA compliant?
Yes. The same ladder can be engineered to satisfy AS 1657, SANS, OSHA 1910.28/1910.23 and EN ISO 14122-4 depending on your project location. Every order ships with an order-level Declaration of Conformity, an MTC 3.1 material certificate and the structural calculation sheet — at no extra cost.
Can I buy a custom-height AS 1657 cat ladder from the factory?
Yes — we fabricate to your exact climb height up to 25 m per section, in HDG steel, SS304 or SS316 stainless, aluminium or GRP. Send your height, material, cage preference and quantity through the form and we return a factory-direct itemized quote within 24 hours.
What is the lead time for an AS 1657 cat ladder order?
You receive an itemized factory quote within 24 hours, then production runs 15–25 working days from the approved drawing. Finished ladders ship EXW, FOB or CIF to your nearest port, and the free drawing review happens before production starts so the schedule holds.
Do you accept small trial orders for AS 1657 and SANS projects?
Yes — trial orders start from 1 unit, so a single ladder for one tank or roof access point is welcome. Container mixes are quoted per load plan, letting several heights and cage layouts travel together in one shipment to the same regional port.
What payment terms do you offer?
Standard terms are T/T with a 30% deposit and the 70% balance against the B/L copy. If your project requires different terms, alternatives are confirmed in writing on the proforma invoice, so the agreed payment structure is documented before production begins.
How does AS 1657 rung spacing differ from EN ISO 14122-4 and OSHA?
AS 1657 sets rung spacing at 250–300 mm, EN ISO 14122-4 and BS 4211 at 225–300 mm, and OSHA 1910.23 at 254–356 mm. Our factory standard is 225–230 mm, re-pitched to the AS 1657 band for Australian orders, with the supplied spacing recorded on the calculation sheet.
Which regions specify AS 1657 and SANS compliance?
AS 1657 governs fixed ladders in Australia and New Zealand, while SANS applies to South African projects. The same Q235B hot-dip galvanized construction serves both, with rung spacing, fall protection and platform intervals engineered to the standard your project location falls under.

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