RoofCatLadderCat Ladder Standards & Compliance, File Pack Included
Cat Ladder Standards - BS 4211, OSHA, EN ISO
Cat ladders built to BS 4211, EN ISO 14122-4, OSHA 1910.23/1910.28, AS 1657 and SANS — with an order-level DoC, MTC 3.1 and structural calcs on every delivery.
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Standards Interpretation
Five Standards. One Factory Standard.
Every cat ladder we build starts from the same engineered geometry — 1.5 kN rung load, fixing centres ≤1500 mm — with our standard 225–230 mm pitch clearing the EN ISO 14122-4 and BS 4211 band, and US and Australian orders re-pitched to the 254–356 / 250–300 mm band. Which one governs your project depends on the port of discharge, and the DoC ships named to that standard. Non-compliant access can void insurance cover and trigger regulator citations after any incident.
Compliance is a document chain, not a badge
A compliance claim is only as strong as its weakest document. Our factory runs a five-stage QC chain — MTC 3.1 incoming material, welding to the approved drawing with 100% visual inspection, ISO 1461 hot-dip galvanizing, trial assembly and photographed loading — retained for ten years. That chain is what turns a standards table into a Declaration of Conformity an auditor will accept.
- OSHA 1910.23 / 1910.28 (US)
Dimensions and fall protection, incl. the 24 ft rule and 2036 cage phase-out
- EN ISO 14122-4 (EU) & BS 4211 (UK)
Cage geometry, rung spacing and safety hoops for fixed access ladders
- AS 1657 (AU/NZ) & SANS (ZA)
Regional fixed-ladder standards with caged climbs by default over 3 m
BS 4211 (UK)
British standard for permanently fixed ladders with safety hoops. Cage hoops start around 2 m up; UK orders ship with a BS 4211 DoC aligned with the Work at Height Regulations 2005.
Read the BS 4211 breakdown →EN ISO 14122-4 (EU)
European standard for permanent means of access to machinery. We engineer rung spacing, cage diameter and cage start to its geometry and issue an EN ISO 14122-4 DoC with every EU order.
Read the EN ISO breakdown →OSHA 1910.23 / 1910.28 (US)
1910.23 fixes ladder dimensions and cage geometry; 1910.28 governs fall protection, including the 24 ft rule and the 2036 cage phase-out for existing installations.
Read the OSHA breakdown →AS 1657:2018 (AU/NZ)
Australian standard for fixed platforms, walkways, stairways and ladders. Most Australian fixed-ladder projects are caged projects by default; orders ship with an AS 1657 DoC aligned with WHS duties.
Read the AS 1657 breakdown →SANS (South Africa)
South African fixed-ladder standard aligned with EN ISO 14122. Same geometry clears the band; South African orders ship with a SANS-referenced conformity statement.
Read the SANS breakdown →Not sure which applies?
Name the country and the climb height — we confirm the governing standard and the DoC that will ship with it, within 24 hours, free.
Ask us in 24h →The Compliance File Pack
Cat Ladder Compliance Documentation
Most suppliers sell you a ladder and leave you to chase paperwork. Every RoofCatLadder.com order ships with its full compliance file — at no extra charge.
Order-Level DoC
Declaration of Conformity to the exact standard your specification names — OSHA, EN ISO 14122-4, BS 4211, AS 1657 or SANS.
MTC 3.1
EN 10204 3.1 material certificate for Q235B, SS304, SS316 and HDG batches — steel traceable heat by heat.
Structural Calculation
Engineer-signed calculation sheet for your climb height, load case and fixing arrangement.
Factory Inspection Report
Dimensional, weld and coating reports issued per standard system, with a dated photo set of the trial assembly.
Compliance Delivered
Compliance Projects We've Delivered
OSHA DoC
AS 1657 DoC
BS 4211 DoC
EN ISO 14122-4 DoC
Market Standards
Cat Ladder Standards by Market
The same ladder needs different paperwork in different ports. The geometry clears every band; this table makes sure the file clears every customs and audit desk on the way.
| Market | Standard | Key Requirement | DoC Shipped |
|---|---|---|---|
| United States | OSHA 1910.23 / 1910.28 | New ladders over 24 ft (7.3 m) need a ladder safety system or PFAS; cage geometry per OSHA 1910.23/28 for grandfathered installs | OSHA |
| European Union | EN ISO 14122-4:2016 | Rung spacing 225–230 mm, cage above 3 m climb, flights capped at 6 m before a rest platform | EN ISO 14122-4 |
| United Kingdom | BS 4211 + Work at Height Regs 2005 | Safety hoops and cage geometry for permanently fixed ladders | BS 4211 + EN |
| Australia / NZ | AS 1657:2018 + WHS | Fixed ladder with cage or fall-arrest where climb exceeds 3.0 m — far earlier than OSHA's 24 ft | AS 1657 |
| South Africa | SANS | Fixed-ladder safety aligned with EN ISO 14122; caged climbs over height | SANS |
| Singapore | WSH (WAH) 2013 + SS 553 | Cage and fall protection for vertical access; landings within 9 m on climbs over 9 m | SS 553 |
CE marking is not required for fixed structural access ladders — compliance is documented via EN ISO 14122-4 conformity plus DoC and MTC 3.1.
Specifications
Cat Ladder Specifications That Clear Every Standard
Our standard 225–230 mm pitch clears the EN ISO 14122-4 and BS 4211 band; US and Australian orders are re-pitched to the 254–356 / 250–300 mm band. These are the engineered parameters we manufacture to — a single hardware truth across multi-market fleets.
- Re-pitched per destination
Standard 225–230 mm pitch for EN ISO 14122-4 and BS 4211; re-pitched to the 254–356 / 250–300 mm band for US and AU orders
- Materials grade-matched
Q235B HDG, SS304/SS316 , aluminium or GRP/FRP
- Free drawing review
We check your elevation and confirm the DoC before you pay
| Specification | Value |
|---|---|
| Material | Q235B HDG 85–100 µm (ISO 1461) · SS304/SS316 · Aluminium · GRP/FRP |
| Rung Load | 1.5 kN per rung |
| Rung Spacing | 225–230 mm |
| Fixing Spacing | ≤1500 mm centres |
| Single Section | Max 25 m — taller runs split with rest platforms |
| Cage Start | From ~2.2 m climb (factory standard) |
| Standards | OSHA 1910.23/28 · EN ISO 14122-4 · BS 4211 · AS 1657 · SANS |
| Compliance Files | DoC · MTC 3.1 · Structural calcs — free with order |
Standards Education
2036 Cage Transition & the 24 ft Rule
Two OSHA rules drive most of our compliance questions. Here is what they mean for your project.
The 24 ft Rule
Since 2018, new fixed ladders over 24 ft must use a personal fall arrest system or ladder safety system — a cage is no longer accepted for new installs above that height.
2036 Phase-Out
Existing cages above 24 ft must be retrofitted with PFAS or LSS by November 18, 2036. We supply both new caged cat ladders and the retrofit components.
Landing Platforms
Rest platforms at ≤6 m intervals per EN ISO 14122-4, engineered into every tall run; single transport sections run up to 25 m.
Demand These Documents by Name
The Compliance Procurement Checklist — Six Lines That Survive an Audit
A compliance claim is only as strong as its weakest document. This is the six-line evidence chain our own factory runs on — MTC to weld class to coating to trial assembly to photography, retained for ten years — restated as lines you can paste into any purchase order, in any market.
| PO Line | What It Proves When Audited | What We Ship |
|---|---|---|
| "DoC referencing the client-designated standard" | the conformity claim names your standard, not a convenient one | DoC issued to the exact standard your specification designates |
| "MTC 3.1 per EN 10204 for all structural steel" | steel traceable heat by heat — the anchor of every later question | MTC 3.1 for Q235B, HDG batches, SS304 and SS316 where specified |
| "Welded to the approved drawing with 100% visual inspection" | the weld acceptance basis is stated, not implied by price | 100% visual inspection records in the five-stage QC file |
| "HDG coating to ISO 1461 with thickness certificates" | the corrosion budget is measurable, not decorative | 85–100 µm coating certificates, retained ten years |
| "Trial assembly before dispatch, photographed" | what you receive was proven to fit at the factory | trial assembly plus dated photo set in every order file |
| "Evidence retention: ten years minimum" | the file outlives the warranty argument | our QC archive holds every stage for a decade |
Six lines, one chain — a supplier who hesitates at any line is answering the audit question before it is asked.
Free Compliance Pack
Get Your Free Compliance Pack
Tell us your target market and climb height — we send the right DoC sample, standards comparison and compliance checklist free, within 24 hours, with your itemized quote.
- 24h itemized quote with free drawing review
- DoC sample named to your market's standard
- DoC, MTC 3.1 & structural calcs included with order
Cat Ladder Standards FAQ