Factory-Direct Cat Ladders to BS 4211

BS 4211 Cat Ladder

BS 4211 compliant steel cat ladders for roof and platform access. HDG finish, engineered to a 1.5 kN rung load — factory-direct with compliance docs included.

BS 4211 EN ISO 14122-4 OSHA 1910.28 MTC & DoC Included
BS 4211 cat ladder HDG steel detail, rungs and stiles
20+

Years Manufacturing

50+

Countries Exported

24h

Quote Response

20+

Years Manufacturing

Standard Interpretation — Key Clauses

BS 4211 Cat Ladder

BS 4211 sets out the geometry, strength and finish for permanently fixed ladders. We build every rung, stile and fixing to those clauses, so your spec sheet, drawing approval and site inspection all line up. Retrofit access after handover always costs more than specifying it correctly at tender stage.

  • Rung spacing 225–230 mm

    Inside the BS 4211 225–300 mm band, held uniform for the whole run

  • 1.5 kN rung point load

    Each rung engineered and jig-tested for the concentrated load the standard requires

  • Stiles extend 1.05 m above landing

    Handhold extension per BS 4211 for safe exit at the top

  • Fixings at ≤1500 mm centres

    Wall, parapet and roof brackets checked for the substrate before dispatch

  • HDG finish to ISO 1461

    85–100 µm zinc, or acid-pickled SS304 / SS316 for corrosive environments

Assembled BS 4211 cat ladder section, HDG finish

Compliance File: DoC, MTC & Structural Calcs

Compliance Docs with Every Order

OSHA, BS 4211 & EN ISO 14122 compliant — and you get the order-level DoC and full documentation file in the crate, no chasing after delivery.

  • DoC — Declaration of Conformity

    Signed against BS 4211, EN ISO 14122-4 and OSHA 1910.28 / 1910.23

  • MTC 3.1 material certificate

    EN 10204 3.1 for Q235B, SS304 / SS316;s on stainless

  • Structural calculation sheet

    Engineer-signed calcs for rung load, stile and bracket arrangement

Factory QC inspection of a BS 4211 cat ladder before dispatch

Compliant Configuration

Cat Ladder BS 4211 Standard

The factory-direct spec below is our default BS 4211 build. Send your height, roof type and stile spacing and we confirm the drawing — free of charge — within 24 hours.

  • Single runs to 25 m

    Intermediate rest platforms split longer climbs

  • Cage or open configuration

    Safety hoops welded at ≤1500 mm spacing where required

  • Material options

    Q235B HDG, SS304, SS316, aluminium or GRP/FRP

SpecificationValue
StandardBS 4211 · EN ISO 14122-4 · OSHA 1910.28/23
MaterialQ235B HDG 85–100 µm (ISO 1461) · SS304 · SS316 · Aluminium · GRP
Rung Spacing225–230 mm
Stile Width375–420 mm clear
Rung Load1.5 kN point load
Fixing Centres≤1500 mm
Max Single Run25 m (rest platforms above)
Safety CageHoops ≤1500 mm spacing, welded
Extension Above Landing1.05 m

Who You Are Buying From

BS 4211 Cat Ladder Supplier

Dengtai has manufactured steel cat ladders in Shijiazhuang since 2004 — projects exported to 50+ countries, HDG and stainless, with compliance documentation on every crate.

BS 4211 cat ladder crane lift on a roof access project

Roof Access — HDG, Caged

6 m BS 4211 ladder with safety cage, HDG 85 µm, wall-fixed at 1500 mm centres. Supplied with DoC and structural calcs; site-approved first pass.

Stainless BS 4211 cat ladder sections ready for export

Tank Climb — SS304 Option

Acid-pickled SS304 ladder for potable water tank access, grade-verified, with a platform and self-closing gate at the top landing.

Export — 50+ Countries

Shipped EXW, FOB or CIF — containerized flat-pack or fully assembled. Customs files, packing lists and MTCs prepared for your port.

View Case Studies →

Factory-Direct Pricing

Factory-Direct BS 4211 Cat Ladder

Factory-direct pricing, 15–25 day production, quote within 24 hours. No distributor markup — you buy from the floor that cuts, welds and galvanizes your ladder.

  • 24h itemized quote

    Materials, machining, galvanizing, packaging — line by line

  • Free drawing review

    We check your height, fixing substrate and landing before you commit

  • 15–25 day production

    HDG or stainless, caged or open, with compliance docs in the crate

Reference PriceEx-Works
HDG BS 4211 cat ladder, per metre (climb)Factory-direct per-metre rates
6 m with safety cage, completeQuote in 24h
Equivalent US catalog priceTypically a multiple of factory-direct rates

Reference pricing, ex-works Shijiazhuang. Firm itemized quote within 24 hours after your spec.

Dengtai factory floor producing factory-direct BS 4211 cat ladders

Request a Quote for Cat Ladders Today

Request Your BS 4211 Cat Ladder Quote

Tell us the climb height, material and quantity. We confirm the BS 4211 configuration and send an itemized factory quote within 24 hours.

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

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Cat Ladder BS 4211 FAQ

Which standard is your cat ladder built to?
Every ladder is fabricated to BS 4211, EN ISO 14122-4 and OSHA 1910.28 / 1910.23. Standard finish is Q235B hot-dip galvanized steel to ISO 1461 (85–100 µm), with SS304 / SS316 offered for marine and chemical exposure. Every order ships with the DoC, MTC 3.1 and engineer-signed structural calculation sheets.
What does BS 4211 say about rung spacing and loads?
BS 4211 allows rung centres between 225 and 300 mm; we build at 225–230 mm uniform. Each rung is designed for a 1.5 kN concentrated point load, stringers extend 1.05 m above the landing as a handhold, and fixing brackets are spaced at ≤1500 mm centres.
Can you supply a BS 4211 cat ladder with a safety cage?
Yes. Safety hoops are welded at ≤1500 mm vertical spacing to the BS 4211 / EN ISO 14122 arrangement, and single runs are capped at 25 m with intermediate rest platforms above that. Caged and un-caged ladders are both standard configurations.
Do BS 4211 cat ladders ship with compliance documents?
Every order ships with a Declaration of Conformity, an EN 10204 MTC 3.1 material certificate and structural calculation sheets signed by our engineer — at no extra cost. Stainless steel orders also include grade verification reports.
How long does a BS 4211 cat ladder take from quote to shipment?
You receive a quote in 24 hours, production runs 15–25 working days from the approved drawing, and shipment goes EXW, FOB or CIF. The compliance file is prepared in parallel, so documents never delay dispatch, and packing as sections or assembled sets is confirmed at quote stage.
Can I order a single BS 4211 ladder as a trial?
Yes — trial orders start from 1 unit. Confirm the standard on one roof first, then scale with container mixes quoted per load plan that combine BS 4211 ladders, gates and brackets in the same shipment, each order still documented to BS 4211.
Can you build non-standard heights to BS 4211?
Custom heights are engineered to order — rung spacing stays uniform at 225–230 mm inside the BS 4211 band whatever the climb. The drawing review is free within the 24-hour quote, so compliance is checked before any steel is cut, not discovered after installation.
Does BS 4211 apply outside the UK and Ireland?
BS 4211 is the UK and Ireland reference for fixed ladders. For other destinations we engineer to EN ISO 14122-4 or OSHA 1910.23/1910.28 instead — tell us the project country and the applicable standard is confirmed in your quote and on the Declaration of Conformity.
Which standards are referenced on the Declaration of Conformity?
The DoC is issued per order against the governing standard — BS 4211, or EN ISO 14122-4 / OSHA where the destination requires it. It ships free with the EN 10204 3.1 MTC, the HDG coating report to ISO 1461 and engineer-signed structural calcs.

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