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Factory-Direct Cat Ladder Requirements

Cat Ladder Requirements

Meet OSHA, ISO 14122 and BS 4211 cat ladder requirements with one supplier.

Fixed steel cat ladders engineered to OSHA 1910.28, EN ISO 14122-4, BS 4211 and AS 1657 — Q235B hot-dip galvanized or SS304/316 stainless, built in our Shijiazhuang factory with DoC, MTC 3.1 and structural calcs included on every order.

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OSHA 1910.28 EN ISO 14122-4 BS 4211 MTC & DoC Included
Industrial cat ladder built to OSHA and EN ISO cat ladder requirements
20+

Years Manufacturing

50+

Countries Exported

24h

Quote Response

20+

Years Manufacturing

Standards Specialist — One Supplier, Every Market

Cat Ladder Requirements at a Glance

Three cat ladder standards dominate roof access specifications — OSHA 1910.28 in the US, EN ISO 14122-4 in Europe and BS 4211 in the UK, with AS 1657 covering Australia and New Zealand. Each ladder is built to the standard your project location designates; rungs are re-pitched where the destination band differs. Non-compliant access can void insurance cover and trigger regulator citations after any incident.

OSHA 1910.28 & 1910.23

Under OSHA 1910.28(b)(9), fixed ladders over 24 ft (7.3 m) require a ladder safety system or personal fall arrest on new installations, and tall climbs are split with intermediate rest platforms per the governing standard. Dengtai supplies ladder safety systems, cage hoops for grandfathered existing structures, rest platforms and anchor points to match — with fall-protection details on the structural calc.

EN ISO 14122-4

Permanent means of access to machinery — rung spacing 225–300 mm with clearance for the feet. Dengtai builds 225–230 mm spacing and standoff fixings at ≤1500 mm centres as standard.

BS 4211

The UK specification for permanently fixed ladders — square rungs, stile dimensions and mounting details. Every BS 4211 order ships with a Declaration of Conformity.

AS 1657

Covers the design of fixed platforms, walkways, stairways and ladders across Australia and New Zealand. AS 1657 compliance data is supplied with every export down under.

Assembled galvanized cat ladder meeting the cat ladder standard

Which Cat Ladder Regulations Apply?

Cat Ladder Regulations by Market

Your governing cat ladder regulations depend on the destination country. We map every order to the right standard and document the result — no ambiguity for your inspector.

MarketGoverning Cat Ladder RegulationKey RequirementDengtai Compliance
United StatesOSHA 1910.23 / 1910.28Fall protection above 24 ftCage hoops, rest platforms, anchor points
EuropeEN ISO 14122-4Rung spacing 225–300 mm225–230 mm spacing, fixings ≤1500 mm
United KingdomBS 4211Square rungs, fixed stilesConforms; DoC supplied with order
Australia / New ZealandAS 1657Ladder & platform designAS 1657 data on request
South AfricaSANSSimilar to EN ISO 14122Confirmed on request

Compliance-Certified Specifications

Cat Ladder Standard: Compliance-Certified Specifications

Every cat ladder is made-to-order against the parameters below, then verified with an inspection report before it ships. Rung load, spacing and fixing centres are certified — not assumed.

  • 1.5 kN per rung

    Rung load rated and verified on the structural calculation sheet

  • Materials traceable to mill

    Q235B HDG, SS304/SS316 with mill certificates (EN 10204 3.1) on stainless runs

  • Rest platforms per governing standard

    EN ISO 14122-4 rest platforms at 6 m intervals; 25 m max transportable section

SpecificationValue
MaterialQ235B HDG 85–100 µm (ISO 1461) · SS304 / SS316 (EN 10204 3.1 MTC)
Rung Load1.5 kN per rung
Rung Spacing225–230 mm
Fixing Centres≤1500 mm
Max Single Section25 m transportable; rest platforms at 6 m intervals per EN ISO 14122-4
FinishHDG ISO 1461 · acid-pickled stainless
Compliance FilesDoC · MTC 3.1 · structural calc · inspection report
StandardsOSHA 1910.23/28 · EN ISO 14122-4 · BS 4211 · AS 1657
Cat ladder standard compliance verified during factory loading

Compliance Docs: MTC & DoC With Every Order

Compliance Docs with Every Order

OSHA, BS 4211 & EN ISO 14122 compliant; order-level DoC and full docs. You get a traceable compliance file — not a vague promise.

  • Declaration of Conformity

    DoC referencing the governing standard and your order number

  • MTC 3.1 Material Certificate

    EN 10204 3.1 for Q235B, SS304, SS316; for stainless

  • Structural Calculation Sheet

    Engineer-signed for rung load and bracket arrangement

  • Inspection Report

    HDG coating thickness and dimensional check before dispatch

Compliance components verified against cat ladder regulations

Factory-Direct Pricing

Factory-Direct Cat Ladder Requirements

Factory-direct pricing, 15–25 day production, quote within 24 hours. Itemized ex-works quotes — material, machining, finishing and packaging line by line, typically well below US catalog equivalents. See our price guide for what drives cat ladder cost per metre.

Tell us your target standard, climb height and quantity — we reply with an itemized quote, a drawing review and the applicable compliance file. Shipping is available EXW, FOB or CIF.

Hot-dip galvanized cat ladder production at the Dengtai factory

Factory-Direct

No distributor markup. Maker-direct pricing straight from the production floor.

24h Itemized Quote

Material, coating, packing and freight — line by line, no hidden fees.

15–25 Day Production

From drawing approval to ready-for-shipment, with a free drawing review.

Ship Worldwide

EXW / FOB / CIF, knocked-down or fully assembled for container loading.

Case Backing

20+ Years Across 50+ Countries

Roof access cat ladders installed across chemical plants, warehouses, tank farms and substations — each one verified against the relevant cat ladder requirements before it leaves the factory.

  • Documented on every project

    DoC, MTC and structural calcs archived per order number

  • Contractor-ready files

    Handover paperwork your site inspector will accept

  • Export-proven

    Crated to spec for container freight in 50+ markets

Cat ladder installed on an industrial facility meeting cat ladder requirements

Get a Cat Ladder Requirements Quote

Get a Cat Ladder Requirements Quote

Request a quote for cat ladders today. Free quote in 24 hours plus the full compliance file with every order. Tell us your target standard and climb height — we handle the rest.

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

Free quote · Free drawing review · No obligation

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Cat Ladder Requirements FAQ

Cat Ladder Requirements FAQ

Which cat ladder requirements apply to my project?
It depends on your market. OSHA 1910.28 and 1910.23 govern the US, EN ISO 14122-4 governs Europe, BS 4211 the UK and AS 1657 Australia and New Zealand. Tell us the destination country and building height — we confirm the applicable standard and quote within 24 hours.
What compliance documents come with every cat ladder order?
Every order ships with a Declaration of Conformity (DoC), an EN 10204 3.1 material certificate (MTC) for the steel grade, an engineer-signed structural calculation sheet and an inspection report covering HDG coating thickness and dimensions — at no extra cost.
At what height do cat ladders need rest platforms or cages?
EN ISO 14122-4 caps single flights at 10 m with rest platforms at 6 m intervals, and OSHA requires a ladder safety system or PFAS above 24 ft (7.3 m) on new installations. Our maximum single transportable section is 25 m, with intermediate rest platforms per the governing standard and cage hoops or fall-arrest rails where required.
How much does it cost to meet cat ladder requirements?
Pricing depends on climb height, material and cage configuration, so we quote itemized ex-works rates within 24 hours rather than publish averages. Factory-direct rates typically land well below US catalog equivalents for the same compliance documentation. See our cat ladder price guide for what drives cost per metre.
How long does a standards-compliant cat ladder take to build?
You get an itemized quote within 24 hours, then production runs 15–25 working days from the approved drawing. Compliance verification — coating thickness, dimensions and the calculation sheet — happens inside that window, and finished ladders ship EXW, FOB or CIF.
Is there a minimum order for compliant cat ladders?
No — trial orders start from 1 unit, so a single compliant ladder for one roof or tank is welcome. When a programme grows, container mixes are quoted per load plan so several standards and heights travel in one shipment.
What payment terms do you accept?
Standard terms are T/T with a 30% deposit and the 70% balance against the B/L copy. If your project needs different terms, alternatives are confirmed in writing on the proforma invoice, so the agreed structure is documented before production begins.
Do existing caged ladders need upgrading under OSHA 1910.28?
OSHA 1910.28(b)(9) requires a ladder safety or personal fall-arrest system on new fixed ladders above 24 ft (7.3 m), while existing ladders with cages are grandfathered until 2036-11-18. We quote both routes — cage hoops for grandfathered structures or fall-arrest systems for new installs.
Can one ladder satisfy two standards for a cross-border project?
Yes. For cross-border projects we review both requirement sets during the free drawing review, confirm where the bands overlap, and reference both standards on the order-level Declaration of Conformity. The DoC, MTC 3.1 and engineer-signed calculations travel with the shipment for each market inspector.

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