Dengtai logo RoofCatLadder.com

EN ISO 14122-4 Compliant · Factory-Direct Cat Ladders

Cat Ladder EN ISO 14122

EN ISO 14122-4 compliant steel cat ladders for safe roof and platform access. Order-level DoC, MTC 3.1 and structural calculations with every order — quote within 24 hours.

Get My Factory Quote Chat on WhatsApp
EN ISO 14122-4 OSHA 1910.28 BS 4211 DoC & MTC Included
Cat ladder EN ISO 14122 assembled steel roof access ladder from the factory
20+

Years Manufacturing

50+

Countries Exported

24h

Quote Response

20+

Years Manufacturing

EN ISO 14122-4 Explained — What the Standard Requires

Cat Ladder EN ISO 14122

A cat ladder EN ISO 14122 is a fixed steel ladder engineered to EN ISO 14122-4, a European standard for permanent means of access to machinery, applied to building ladders on a voluntary basis. 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 225–300 mm per EN ISO 14122-4

    Our standard build 225–230 mm — uniform pitch across every section for a predictable climbing rhythm

  • 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

    EN ISO 14122-4 caps single flights at 10 m with rest platforms at 6 m intervals

  • Cage or fall-arrest by height

    Safety cage or vertical fall-arrest system (EN 353) matched to the climb height

Cat ladder EN ISO 14122 HDG rung and stile detail

Order-Level Compliance File

Compliance Docs with Every Order

OSHA, BS 4211 & EN ISO 14122 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 EN ISO 14122-4, OSHA 1910.28 & BS 4211

  • 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

Cat ladder EN ISO 14122 factory quality inspection and compliance check

Compliant Configurations

Cat Ladder ISO 14122-4 Specifications

Every cat ladder iso 14122 4 configuration is made-to-order with the engineered parameters below — measured to your climb height and fixing points.

SpecificationValue
ComplianceEN ISO 14122-4 · OSHA 1910.28 · BS 4211 · AS 1657
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 EN ISO 14122-4)
Fall ProtectionSafety cage or vertical fall-arrest system (EN 353-1)
FinishHot-dip galvanized ISO 1461 · acid-pickled stainless
Docs IncludedDoC · MTC 3.1 · structural calculation sheet
Cat ladder ISO 14122 4 HDG steel rung and stile specification detail

Cat Ladder with Cage

Galvanized or stainless caged ladder for climbs over the EN ISO 14122-4 fall-protection threshold.

With Landing Platform

Rest platforms at 6 m intervals per EN ISO 14122-4 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

Cat Ladder EN ISO 14122 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 EN ISO 14122-4 to OSHA and BS 4211.

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.

Cat ladder EN ISO 14122 factory-direct mixed stack of export ladders

Factory-Direct Pricing

Factory-Direct Cat Ladder EN ISO 14122

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 a Cat Ladder EN ISO 14122 Quote

Get a Cat Ladder EN ISO 14122 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)

Your info is safe. No spam, unsubscribe anytime. Privacy policy

Cat Ladder EN ISO 14122 FAQ

What is a Cat Ladder EN ISO 14122?
A Cat Ladder EN ISO 14122 is a fixed steel ladder for safe roof and platform access, engineered to EN ISO 14122-4 — a European standard for permanent means of access to machinery, applied to building ladders on a voluntary basis. 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 cat ladder ISO 14122 4 require for fall protection?
EN ISO 14122-4 requires rung spacing, stile geometry and fall protection matched to climb height — a safety cage or a vertical fall-arrest system (EN 353-1). Wall fixings at or below 1500 mm centres are our factory build standard. EN ISO 14122-4 caps single flights at 10 m with rest platforms at 6 m intervals (fall-arrest systems per EN 353 above that); our maximum single transportable section is 25 m. Our engineer-signed structural calculation sheet documents all of this for your order.
Is an EN ISO 14122 cat ladder also OSHA and BS 4211 compliant?
Yes. The same ladder can be engineered to satisfy EN ISO 14122-4, OSHA 1910.28/1910.23 and BS 4211 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 cat ladder EN ISO 14122 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 are the lead times for an EN ISO 14122-4 cat ladder?
Expect a quote in 24 hours, production 15–25 working days from the approved drawing, and shipping EXW, FOB or CIF. The DoC and supporting file are compiled during production, so the paperwork ships with the steel, never in a separate envelope weeks later.
Is there a minimum order for EN ISO 14122 cat ladders?
No — trial orders start from 1 unit. Once a site standard settles, container mixes are quoted per load plan so multiple heights and configurations travel together, and each order keeps its own compliance file wherever in the world the containers are delivered.
What payment terms apply to EN ISO 14122 ladder orders?
Standard terms are T/T with a 30% deposit and 70% against the B/L copy. Alternatives are confirmed in writing on the proforma invoice before production, so terms are settled as early as the drawing review, not renegotiated at the port gate.
What rung spacing does EN ISO 14122-4 allow?
EN ISO 14122-4 and BS 4211 both allow uniform rung spacing between 225 and 300 mm; our standard build is 225–230 mm. For US destinations, OSHA 1910.23 uses a 254–356 mm band, so we re-pitch rungs at drawing review rather than shipping a mismatch.
Can the DoC reference EN ISO 14122-4 together with other standards?
Yes — where one configuration satisfies several standards, the order-level DoC can reference EN ISO 14122-4 alongside BS 4211 or OSHA as the project requires. It is supplied free with the EN 10204 3.1 MTC, HDG coating report and engineer-signed structural calcs.

Related Cat Ladder Pages

All Cat Ladders

Browse by type, material & application

BS 4211 Cat Ladders

UK permanence and inspection standard

OSHA Cat Ladders

1910.28 & 1910.23 fixed ladder rules

AS 1657 / SANS Cat Ladders

Australia, New Zealand & South Africa

Standards Compliance Hub

OSHA, EN ISO, BS, AS requirements

Get a Quote

24h itemized factory-direct quote

We use cookies to analyze site traffic. Learn more about cookies

Get Quote WhatsApp