RoofCatLadderModular Cat Ladder Sections & Extension Pieces
Cat Ladder Sections
Modular cat ladder sections and extension pieces with a bolt-together build. Pick your configuration — cage, platform, handrail or walkway — and get a factory quote within 24 hours.
Years Manufacturing
Countries Exported
Quote Response
Years Manufacturing
Configurations
Cat Ladder Sections for Every Access Point
Every cat ladder section is fabricated, jig-checked and trial-assembled in our Shijiazhuang factory, then bolted together on site. Cage, platform, handrail or walkway — order the configuration that matches your access code. An access route that fails inspection means stop-work orders and retrofit scaffolding at site rates.
Caged Cat Ladder Section
Φ700 mm inner cage hoops from 2.2 m above base, vertical hoop spacing ≤1500 mm. Required on climbs above 24 ft (7.3 m) under OSHA 1910.28 (EN ISO 14122-4: from 3 m).
With Landing Platform
Intermediate rest platforms for runs over 25 m and for parapet climbs. Grating or chequer-plate decks with guardrail.
Walkway & Handrail
Bolt-on walkway cat ladder sections and handrail extensions to carry access across roofs and tank tops without gaps.
Parapet & Roof Extension
Extension pieces that climb over the parapet and onto the roof deck, with step-over grab rails to clear the upstand safely.
Cat Ladder Extension Section
Cat Ladder Extension Section: Add Height, Not a New Run
Need a taller ladder or a step up over a parapet? Cat ladder extension sections bolt straight onto your existing stiles in matching material — Q235B HDG, SS304 or SS316. No re-drilling, no welding on site.
- 1.0–6.0 m modular lengths
Bolt-together sections, max single run 25 m; rest platforms above that
- Match any existing stile spacing
Send a photo — we confirm fit of the extension piece within 24 hours
- Custom lengths, no minimum volume
Single sections or full runs, cut and drilled to your dimensions
Specifications
Cat Ladder Section Specifications
Every cat ladder section is engineered around the parameters below — rung load, cage geometry and fixing centres all sized to OSHA, BS 4211 and EN ISO 14122-4.
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| Specification | Value |
|---|---|
| Section Length | 1.0–6.0 m modular · max single run 25 m |
| Stile / Stringer | 50 × 8 mm flat bar or 30 × 30 angle, Q235B |
| Rung | Φ20 mm serrated round (Φ25 mm on request), 225–230 mm spacing |
| Rung Load Rating | 1.5 kN (153 kg) point load |
| Safety Cage | Φ700 mm inner · hoops from 2.2 m · ≤1500 mm spacing |
| Fixing Centres | ≤1500 mm brackets, bolt-together joints |
| Material | Q235B HDG 85–100 µm (ISO 1461) · SS304/SS316 · Aluminium · GRP |
| Rest Platforms | Required for runs over 25 m |
| Standards | OSHA 1910.28 · BS 4211 · EN ISO 14122-4 · AS 1657 |
Compliance Docs with Every Order
Compliance Docs with Every Order
OSHA, BS 4211 & EN ISO 14122 compliant — and the paperwork is not an afterthought. Every cat ladder section order ships with its full compliance file at no extra cost.
- DoC — Declaration of Conformity
Order-level conformity to OSHA 1910.28, BS 4211 and EN ISO 14122-4
- MTC 3.1 Material Certificate
EN 10204 3.1 mill certs for Q235B, SS304 and SS316; grade verification reports for stainless
- Structural Calculation Sheet
Engineer-signed calcs for your section arrangement and fixing pattern
Case Backing · 20+ Years Manufacturing
Modular Ladder Sections, Proven on Site
Cat ladder sections from our factory are installed across 50+ export countries — chemical plants, tank farms, logistics hubs and marine facilities.
Tank Farm Retrofit
28 caged extension sections on a 12 m vertical run, HDG. Bolt-together joints between tank levels, compliance file per order.
Logistics Roof Access
18 m bolt-together run with a mid landing platform. Sections shipped flat-pack, assembled by the client crew in a weekend.
Marine Plant Extension
SS316 extension pieces for salt-air duty, mill-certified to 3.1. Rung and stile geometry matched to the existing installation.
Factory-Direct Pricing
Factory-Direct Cat Ladder Sections
Buy cat ladder sections from the people who fabricate them. We quote transparent, itemized pricing within 24 hours, with a free drawing review and production in 15–25 working days.
- Factory-direct per-metre rates (HDG, ex-works)
US catalog equivalents typically list a multiple of factory-direct rates — request an itemized quote in 24 hours.
- Itemized quote in 24 hours
Material, fabrication, galvanizing and packaging line by line — no hidden fees
- EXW · FOB · CIF shipping
Shipped as flat-pack sections in containers, or pre-assembled, to your incoterm
Maker-Direct
No distributor markup. Quoted straight from the production floor.
Quote In 24h
List-style quote with free drawing review, no obligation.
Docs Included
DoC, MTC 3.1 and structural calcs ship free with every order.
Get a Cat Ladder Sections Quote
Get a Cat Ladder Sections Quote In 24 Hours
Tell us your configuration — caged section, extension piece, platform or walkway — and we send an itemized factory quote within 24 hours. Free drawing review with every quote.
- 24h itemized factory quote
- Free drawing review & fit check
- DoC, MTC & structural calcs included
Cat Ladder Sections FAQ
Related Cat Ladder Pages
All Cat Ladders
Browse every cat ladder type, material & application
Cat Ladder with Cage
Caged cat ladder sections, Φ700 hoops
With Landing Platform
Rest platforms for runs over 25 m
Vertical Cat Ladder
Straight vertical cat ladder sections
Standards Hub
OSHA, EN ISO, BS, AS requirements
Get a Quote
24h itemized factory quote