LadderCageIndustrial Cat Ladder With Safety Cage
Cat Ladder Safety Cage
Industrial cat ladder with safety cage - welded steel, hot-dip galvanized or stainless. EN ISO 14122-4 & Singapore WSH compliant; DoC with every order.
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Cat Ladder Safety Cage - Industrial Options
Cat Ladder Safety Cage
Welded Steel
Fully welded steel construction - the safety cage is integral to the ladder, engineered and ready to ship.
Galvanized or SS304/316
Hot-dip galvanized Q235B (HDG 85-100 um per ISO 1461) or PMI-tested stainless SS304/SS316 for aggressive sites.
Custom Heights
Any height up to 25 m single-run, with multi-run systems and rest platforms for taller Southeast Asia projects.
Compliance Docs: EN ISO 14122-4 & Singapore WSH
EN ISO 14122-4 & Singapore WSH Compliance
Dual compliance evidence for Singapore and global projects - the safety cage is built to EN ISO 14122-4 and the Singapore WSH (Work at Heights) Regulations 2013.
- EN ISO 14122-4
Fixed ladder and cage design per the European machinery access standard
- Singapore WSH Work at Heights 2013
Safety cage guidance for tall fixed ladders (Singapore WAH: platforms above 9 m)
- DoC & Certificates With Every Order
Declaration of Conformity, MTC 3.1 and structural calculation sheet
Specifications
Cat Ladder Cage Specifications
Every cat ladder safety cage is made-to-order with the engineered parameters below. Confirm height and whether your project is in Singapore for WSH notes.
Get My Cat Ladder Quote| Specification | Value |
|---|---|
| Rung Diameter | Φ20 mm |
| Rung Spacing | 280 mm (≤300 mm) |
| Clear Width | 500 mm |
| Cage Diameter | Φ700 mm (hoops 40×5 @≤1500, straps 30×3) |
| Cage Start | 2.2 m above floor |
| Load Rating | 1.5 kN per rung |
| Entrance | Flared / flared splay entry |
| Standards | EN ISO 14122-4 · Singapore WSH |
Factory-Direct & 24h Quote
Factory-Direct & 24h Quote
Engineered, welded and ready to ship. Itemized quote in 24 hours with a free drawing review and WSH compliance notes.
DoC With Every Order
Declaration of Conformity and certificates included at no extra cost.
24h Quote & Drawing Review
Itemized quote within one working day, with a free drawing review.
Factory-Direct
Built and shipped direct from the factory. Production runs ship in 15-25 working days.
Get a Cat Ladder With Cage Quote
Get a Cat Ladder With Cage Quote
Free quote in 24 hours + free drawing review and compliance kit with every order. Tell us your height and project - we handle the rest.
- EN ISO 14122-4 & Singapore WSH compliant
- DoC & certificates with every order
- 24h quote & free drawing review
- Engineered, welded, ready to ship
Dimension & Load Comparison
European Cat Ladder vs Caged Cat Ladder by the Numbers
When buyers compare a light European cat ladder with a caged industrial flight, the difference is dimensional before it is anything else. These are the numbers that decide which one your structure actually needs.
| Measurement | European Cat Ladder | Dengtai Caged Cat Ladder |
|---|---|---|
| Climbing width | Narrow — sized to one climber flat to the wall | 500 mm clear width, gloved access with tools |
| Rung profile | Light round or flat rungs | Φ20 mm rungs at 280 mm centers, 1.5 kN each |
| Cage diameter | None — open climb | Φ700 mm cage, hoops 40×5 @≤1500 mm, straps 30×3 |
| Cage start height | Not applicable | 2.2 m above ground level |
| Practical run height | Low facades and gutter lines | 10 m per EN ISO 14122-4, longer with platforms |
| Corrosion package | Mill-finished aluminum | HDG 85–100 μm · SS304 ≈1.8x · SS316 ≈2.5x |
Site Walkthrough
An Uncaged Cat Ladder, Replaced Before the Next Audit
Hui Yin maintains a printing plant in Tuas. The rooftop resin-tank deck sits 8 m up an uncaged cat ladder older than her tenure, and the last safety audit flagged the climb with a deadline. Here is the replacement run against the clock.
Hui Yin walks the climb with the audit finding open: 8 m to the tank deck, the old rail narrow enough that a technician with a sample case climbs sideways, and no cage of any kind. She logs wall build at each bracket line, the canopy over the loading door the run must clear, and the audit deadline itself.
Our engineers return the upgrade drawing: 500 mm clear width so a gloved climb with tools works, Φ20 rungs at 280 mm rated 1.5 kN, and a Φ700 cage starting 2.2 m with hoops 40×5 at 1500 mm. The old cat ladder stays in service one more month — then the swap.
The trial-fitted run arrives drilled and photographed. Over one production weekend the crew breaks out the old rail and bolts the caged flight to standoff brackets at 1800 mm centers — no hot work over the loading canopy, and the first shift Monday climbs the new cage.
Hui Yin re-opens the audit finding and closes it the same morning: width, rung spacing and cage geometry photographed against the DoC, MTC 3.1 in the same file. The inspection trail — survey, drawing, install, acceptance — is one document set, not a story.
| Survey Checklist (you bring) | Acceptance Checklist (you verify) |
|---|---|
| Audit findings and the compliance deadline | Finding closed with geometry photos |
| Climb height and wall build at each bracket line | 500 mm width, rungs Φ20 @280 mm |
| Canopies and doorways the run must clear | Cage Φ700 from 2.2 m, hoops 40×5 @≤1500 |
| What the old ladder carries — people, tools, samples | 1.5 kN per rung verified on the sheet |
| Production windows open for the swap | DoC + MTC 3.1 filed the same morning |
Decision Guide
Caged Cat Ladder Decisions: Choose This When…
Upgrading from an open cat ladder asks four questions. The answers come from the climb, not the catalog.
| Decision | Choose X when… | Choose Y when… |
|---|---|---|
| Upgrade path | Cage the existing climb — wall and rail sound, geometry close enough to accept hoops | Full caged replacement — old rail narrow, rung spacing out of tolerance, or the audit demands new geometry |
| Material | HDG Q235B from $95/m — inland plants, standard industrial air, the audit-proof default | SS304 (1.8x) — print chemical vapors, wash-down areas and coastal sites where zinc white-rust flags the next audit |
| Top exit | Walk-through at the deck — technicians arrive with sample cases and need both hands | Step-off with guardrails — decks already guarded where the ladder lands |
| Changeover | Weekend swap — old ladder stays until the trial-fitted run arrives, production never stops | Parallel run — space exists to build the new climb beside the old and decommission at leisure |
The mistake of bolting hoops onto a tired rail
- The mistake: welding a cage onto the existing 30-year-old cat ladder because the quote for retrofit steel is half the replacement number.
- The consequence: the cage passes at eye level but the rail beneath still runs narrow rungs at unknown spacing and no load rating — the audit reopens with the same finding, plus a hot-work record on an occupied plant.
- The correct move: send photos of the old rail with the RFQ — we tell you straight whether retrofit passes, and the free drawing review prices both paths before you commit.
Feature · Advantage · Outcome
What the Caged Upgrade Buys You
| Feature | Advantage | Your Outcome |
|---|---|---|
| 500 mm clear width | gloved climbs with tools and samples | technicians climb forward-facing, not sideways |
| Cage Φ700 from 2.2 m | hoops 40×5, straps 30×3, factory-welded | the audit finding closes on photographs |
| Trial-fitted bolt-up run | weekend swap, zero hot work | production never loses an hour |
| Straight retrofit verdict | we tell you cage-it or replace-it honestly | half the money is never wasted on steel that fails |
| DoC + MTC with the crate | documents land before the inspector asks | the file closes the morning of handover |
Cat Ladder Safety Cage FAQ
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