Dengtai logo RoofCatLadder.com

Factory Cat Ladders · OSHA, BS 4211 & EN ISO 14122-4

Are Cat Ladders Safe

Safe, compliant cat ladders with optional cage, built to OSHA, BS 4211 and ISO 14122. Factory-direct from Dengtai — quote within 24 hours, compliance docs with every order.

Get My Factory Quote Talk to an Engineer on WhatsApp
OSHA 1910.28 EN ISO 14122-4 BS 4211 MTC & DoC Included
Safe factory-made cat ladder detail with rungs and hoops built to OSHA and EN ISO 14122
20+

Years Manufacturing

50+

Countries Exported

24h

Quote Response

20+

Years Manufacturing

Are Cat Ladders Safe — the honest answer

Are Cat Ladders Safe

Yes — when a fixed cat ladder is engineered to a recognized standard, fixed at the right centres and made from the right steel. That is the difference between a Dengtai ladder and an unrated import. Here is what actually keeps a climb safe. An improvised access route is the first thing an auditor flags — and the last thing you want explained in an incident review.

  • 1.5 kN rung load

    Every rung is welded and rated to 1.5 kN per rung per EN ISO 14122-4.

  • Rung spacing at 225–230 mm

    Consistent step spacing keeps climbers in rhythm and reduces slips on wet or ice-covered roofs.

  • Fixings at no more than 1500 mm

    Wall and parapet brackets are never more than 1.5 m apart, so the stiles cannot flex under load.

  • Optional safety cage or fall-arrest rail

    Bolt-on cage hoops for climbs above your local standard height — no re-engineering of the ladder.

Factory cat ladders assembled in a safe, compliant configuration

Which Cat Ladder Is Best — by height, site & budget

Which Cat Ladder Is Best

The best cat ladder is the one that matches your climb height, environment and budget — while still meeting the standard your project must comply with.

HDG Steel Cat Ladders

Q235B hot-dip galvanized, 85–100 µm per ISO 1461. Best value for most roof access — factory-direct per-metre rates.

Stainless SS304 / SS316

mill-certified stainless for coastal, chemical and food plants where galvanized coatings will not last.

Caged Cat Ladders

Add a safety cage to your order — bolt-on hoops at 225–230 mm spacing, fit to the same stiles.

Aluminium & GRP/FRP

Lightweight and non-corroding options for aggressive atmospheres and weight-restricted roofs.

Custom cat ladders are our standard way of working — any height, stile spacing, finish or standard. Add a safety cage to order and we include the cage sections, bolts and compliance file in the same shipment.

Tell Us Your Requirements

Safety Specification Sheet

Steel Cat Ladders, HDG — Engineered Parameters

Every safe cat ladder we ship is made to the engineered parameters below — measured to your stile spacing, wall offset and climb height. Maximum single section is 25 m; anything taller is split with a landing platform.

Get My Factory Quote
SpecificationValue
MaterialQ235B HDG 85–100 µm · SS304 · SS316 · Aluminium · GRP/FRP
Rung Load1.5 kN per rung, load-tested
Rung Spacing225–230 mm
Fixing Spacing≤1500 mm centres
Max Single Section25 m (split with landing platforms above)
HDG Coating85–100 µm per ISO 1461
Production15–25 working days
StandardsOSHA 1910.28/1910.23 · EN ISO 14122-4 · BS 4211 · AS 1657

OSHA, BS 4211 & EN ISO 14122 compliant

Compliance Docs with Every Cat Ladder Order

No chasing paperwork after delivery. Every order-level DoC and full documentation ships with your cat ladders — so your site, auditor or insurer sees proof, not promises.

  • DoC — Declaration of Conformity

    To OSHA 1910.28 / 1910.23, EN ISO 14122-4 or BS 4211, as specified on the order

  • MTC 3.1 Material Certificate

    EN 10204 3.1 for Q235B, SS304 or SS316 — traceable to the melt

  • Structural Calculation Sheet

    Engineer-signed for your specific height, fixing spacing and load case

OSHA and BS 4211 compliant caged cat ladder components

Are Cat Ladders Safe Supplier — Dengtai since 2004

Are Cat Ladders Safe Supplier

Dengtai has built fixed ladders in Shijiazhuang since 2004. Dealers in the UK, US and Australia spec our cat ladders because the safety file arrives with the steel — 20+ years of builds exported to 50+ countries.

2004

Exporting since

50+

Export countries

20+

Years manufacturing

Cat ladders supplied on a project in a factory facility

Maker-Direct Cat Ladders · Quote In 24h

Factory-Direct Are Cat Ladders Safe

Factory-direct pricing, 15–25 day production, quote within 24 hours. No distributor markup — the price you see is the factory floor price.

Galvanized HDG Steel

Factory-direct per-metre rates for a Q235B HDG cat ladder — the value benchmark for roof access.

6 m Caged Cat Ladder Set

US catalog equivalents typically list a multiple of factory-direct rates — request an itemized quote in 24 hours.

EXW / FOB / CIF

Ship as container flat-rack or knocked-down. Itemized quote in 24 hours, free drawing review on every order.

Request a quote for cat ladders today — send height, wall offset and target standard, and our engineers confirm the safe configuration within 24 hours.

Get a Quote for Safe Cat Ladders

Are Cat Ladders Safe — Get the Factory Spec & Quote

Tell us the climb height, material and target standard. We reply with an itemized factory quote, the recommended safe configuration and your compliance file list — within 24 hours.

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

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

Are Cat Ladders Safe — Frequently Asked Questions

Are cat ladders safe?
Yes. A cat ladder is safe when it is engineered to a recognized standard, fixed at the right centres and made from the right steel. Dengtai cat ladders are rated to 1.5 kN per rung, with rung spacing at 225–230 mm, fixings at no more than 1500 mm and an optional bolt-on safety cage — so the finished installation meets OSHA 1910.28, BS 4211 and EN ISO 14122-4.
Which cat ladder is best?
The best cat ladder depends on height, environment and budget. For most roof access up to 25 m in a single run, a hot-dip galvanized Q235B steel cat ladder is the best value at factory-direct per-metre rates. For coastal or chemical sites choose SS316 stainless. For taller climbs where local rules demand fall protection, add a safety cage or fall-arrest rail.
What standards must a cat ladder meet?
In the US, OSHA 1910.28 (fixed ladders) and 1910.23; in Europe, EN ISO 14122-4; in the UK, BS 4211; and in Australia, AS 1657. Every Dengtai order ships with a Declaration of Conformity, an MTC 3.1 material certificate and engineer-signed structural calculations — included at no extra cost.
When should I add a safety cage to a cat ladder?
Add a safety cage when the climb height exceeds what your local standard permits without fall protection. 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 (in force since 19 November 2018); cages and wells are acceptable on existing ladders only until 18 November 2036. Our cage sections are bolt-on, with cage hoops at ≤1.5 m centres over rungs at 225–230 mm, and fit the same stiles as the standard ladder.
How much weight can a cat ladder rung hold?
Every rung is welded and rated to 1.5 kN per rung — the design load set by EN ISO 14122-4 — and load-tested before dispatch. With rung spacing at a consistent 225–230 mm and wall fixings at no more than 1500 mm centres, the stiles stay rigid and the climb stays predictable under a loaded climber.
What rung spacing is safest on a cat ladder?
EN ISO 14122-4 and BS 4211 specify rung spacing of 225–300 mm, and we build 225–230 mm as our factory standard because a consistent pitch keeps climbers in rhythm. For US projects, OSHA 1910.23 specifies 254–356 mm. Name the governing standard in your quote request and the ladder is pitched to it.
How tall can a cat ladder be in one continuous run?
The maximum single section is 25 m — our factory limit for one run, not a code figure. Taller climbs are split with landing platforms at intermediate levels. Custom heights are engineered to order, and the drawing review that settles your section breaks is free within the 24-hour quote.
What is the lead time for a safe, compliant cat ladder?
You receive an itemized quote within 24 hours, and production runs 15–25 working days from the approved drawing. Finished ladders ship EXW, FOB or CIF — you choose the incoterm that suits your project, and the compliance file travels with the goods so nothing holds up handover.
What installation support keeps the ladder safe after fitting?
Anchor plans and installation drawings are included with every order. Sections bolt together on site, and ladders are trial-assembled at the factory where specified, so hole centres line up first time. An engineer confirms your fixing arrangement within the same 24-hour quote.

Related Cat Ladder Pages

All Cat Ladders

Browse by type, material & application

Types of Cat Ladders

Caged, vertical, platform & extension options

Cat Ladders vs Alternatives

Fixed ladders, staircases & other access

How to Choose a Cat Ladder

Height, material, standard & budget

Standards Hub

OSHA, EN ISO, BS, AS requirements

Get a Quote

24h itemized factory quote

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

Get Quote WhatsApp