Welded Caged Ladder · OSHA 1910.23 / EN ISO 14122-4
Caged Fixed Access Ladder with a Cage for Ladder Safety
One welded unit — the ladder and cage built together, not bolted on. Rolled from Q235B or SS304 in our Shijiazhuang plant, then load-tested batch by batch.
Gallery
Warehouse
Heavy industry
Industrial plant
Facade access
Product Overview
What Is a Caged Fixed Access Ladder?
A caged fixed access ladder is a vertical steel ladder wrapped by a hooped ladder cage. The cage catches a climber who slips on a tall run. We build the ladder and cage as one welded unit, so there is no retrofit and no bolt-on guesswork.
Need a cage for ladder safety on a silo or a tank? This is the part you want. Where our Ladder Safety Cage System bolts a cage onto a ladder you already own, this product arrives complete — stringers, rungs, hoops, and vertical bars welded together and ready to anchor.
We sell straight from the plant. No middleman sits between you and the welder. Every order ships with material certificates, weld reports, and load-test data. ISO 9001:2015 has run our shop since 2003, we serve 50+ countries, and we welcome factory audits.
Caged ladder detail — hooped guard welded to the stringers
Technical Specifications
Specs & Materials for the Cage Ladder: Q235B, SS304 & SS316
Cage ladder components
Hoops, vertical bars, welded rungs
Cage Geometry: A Fixed Ladder With Safety Cage to OSHA 1910.23
OSHA 1910.23 set the cage trigger at 24 ft (7.3 m) of climb on older ladders. EN ISO 14122-4 keeps hoops no more than 1.5 m apart and the cage clear width at or above 400 mm. We roll the cage to your code and your ladder width, then confirm the layout before we cut steel. One caveat: on new US ladders over 24 ft, OSHA 1910.28 now favors a ladder safety system over a cage, so we flag the right route for your site.
| Parameter | Value |
|---|---|
| Construction | Welded one-piece (ladder and cage integral) |
| Ladder material | Q235B carbon steel; SS304 / SS316 stainless |
| Corrosion protection | Hot-dip galvanized ~85 µm (carbon) |
| Rung point load | |
| Cage trigger height | 24 ft / 7.3 m (OSHA 1910.23, older ladders) |
| Hoop spacing | ≤ 1500 mm (EN ISO 14122-4) |
| Vertical bar spacing | ≤ 300 mm |
| Cage clear width | ≥ 400 mm |
| Cage start height | 2100–2400 mm above landing |
| Rung pitch / diameter | 250–300 mm pitch |
| Batch testing | Sample tensile test per batch; report supplied |
Installation & Custom Sizing
Installation & Custom Sizing for a Fixed Ladder With Cage
Caged ladder on a process tank
Representative project — country, sector and quantity
1. Send climb height and width
We start from the climb height, the ladder width, and the governing standard. Photos help. No site visit is needed to quote.
2. We size the cage to code
Hoops are rolled to your width. Clear width stays at or above 400 mm, and hoop spacing follows OSHA 1910.23 or EN ISO 14122-4.
3. Drawing approval
You get a layout and a cage-compliance note. Nothing is cut until you sign it off.
4. Welded as one unit
Stringers, rungs, hoops, and vertical bars are welded together in our shop. In our plant we tack, check square, then run the full welds — that order keeps the cage true.
5. Coating and batch test
Carbon steel is hot-dip galvanized. We pull a sample from each batch for a tensile test and keep the report on file.
6. Documents on handover
Material certificates, weld reports, and load-test data ship with the ladder. SGS, TÜV, or Bureau Veritas inspection is available on request.
Applications
Where a Caged Access Ladder Earns Its Keep: Silos, Tanks & Roofs
Silos & storage tanks
Tall vertical climbs where a cage for ladder safety is standard. We size the cage start and hoop spacing to the run.
Roof & equipment access
Plant rooftops, chillers, and machine platforms. The welded ladder and cage anchor straight to the wall or frame.
US plants under OSHA
Existing ladders over 24 ft (7.3 m) where a cage applies. We confirm OSHA 1910.23 geometry. See our OSHA fixed-ladder guide.
EU & export projects
Sites built to EN ISO 14122-4, AS 1657, or IS 3696. Hoops at ≤ 1.5 m, clear width ≥ 400 mm. See our EN ISO 14122-4 guide.
Cage Family
Related Cage Ladder Systems
Caged Roof Access Ladder
The roof-specific welded version — ladder and cage as one unit for parapet and roof runs.
Ladder Safety Cage System
The bolt-on retrofit cage, for when you keep an existing ladder and add a cage.
Vertical Fixed Access Ladder
The base fixed ladder, in Q235B or stainless, for runs that do not trigger a cage.
FAQ
Frequently Asked Questions
Get Factory-Direct Pricing & Full Documentation
Tell us the climb height, the ladder width, and the governing standard. Need a cage for ladder runs across several sites? Send the count too. Our engineers return a layout, a cage-compliance note, and factory-direct pricing — usually within one working day.