Factory-Direct Since 2004
Fixed Ladder
Safety
Safety engineered in, not added on — cages from 2.2 m, PFAS-ready rails, ISO 5817 welds, and a DoC with every order. Factory-direct safety pricing.
Safety Questions, Answered
Fixed Ladder Lockout
The safety systems, the lockout rules and the weld quality that keep fixed ladders safe — answered with our build data and the code numbers.
Four things: engineered fall protection (cage, PFAS or a ladder safety system), correct climbing geometry (rungs at 280 mm pitch, 500 mm width), weld quality to ISO 5817, and the documentation that proves compliance — DoC, MTC 3.1 and structural calcs. We build all four into every order.
Lockout is the practice of physically preventing access while a ladder or its landing is being serviced. That means a lockable access point — usually a swing gate or hatch at the base or top — that can be tagged out under a lockout/tagout procedure. We supply lockable gates as an option on any build.
Under OSHA 1910.27, a fixed ladder over 24 ft installed after Nov 19, 2018 needs a personal fall arrest system or a ladder safety system — a cage alone no longer satisfies. Under 24 ft, a cage or a ladder safety device is the common choice. We quote both so your site picks what fits the code that governs it.
Our cages start at 2.2 m (7–8 ft) above the base of the ladder, per the 1910.27 convention, and extend 42 in above the top landing. The Φ700 mm hoop diameter and hoop pitch are set to the standard, and the cage is welded to the stiles, not bolted on as an afterthought.
A ladder safety system is a rail-guided fall arrest device that rides a fixed rail beside the rungs. It is the modern alternative to a cage and satisfies the OSHA rule above 24 ft. We build the rail into the ladder at the factory and quote the compatible slide or sleeve with it.
Structural welds — rung-to-stile, cage hoop and bracket joints — are made to ISO 5817 class C or better. Welding Procedure Specifications are documented for each joint type, and the welder qualifications are part of the quality file that ships with the order.
Lockable swing gates, hatch guards, rest platforms, well enclosures, PFAS rails and ladder safety devices are all available. Every feature is a quoted line item on the same order — so the safety package is decided before production, not improvised on site.
The Fall-Protection Toolbox
Four Ways We Make the Climb Safe
Choose the protection that matches your height and the code that governs your site.
Safety Cage
Φ700 mm hoops from 2.2 m. The classic protection for vertical runs up to 24 ft.
PFAS Rail
A fall-arrest rail built into the ladder — required above 24 ft on new installs.
Ladder Safety Device
A rail-guided slide that follows the climber — the modern cage alternative.
Lockout Access
Lockable swing gates and hatches for lockout/tagout during maintenance.
Factory-Direct Safety Pricing
Factory-Direct Pricing & 24h Quote
Same safety, lower cost — factory-direct means no distributor markup on cages, rails or gates. Every safety feature is an itemized line.
Custom quotation priced by weight & process. Industry reference: caged ladders ≈ USD 899–1,099/ton.
Fixed Ladder Safety Configurations
Fixed Ladder Safety Options & Configurations
The safety package is a configuration choice — here are the three most specified ways to protect the climb.

Caged Safety
The Φ700 mm safety cage with base bell — the traditional protection for runs under 24 ft.

Cage & PFAS-Ready
Cage up to the threshold with a PFAS rail above — the transition configuration for new tall installs.

Guards & Gates
Guard protection around the climb plus lockable gates for lockout/tagout — safety beyond the fall system.
Specifications
Fixed Ladder Lockout Specifications & Dimensions
The dimension sheet behind every safety feature. Standard heights 10–25 ft, custom engineering up to 40 ft, all values verifiable.
| Specification | Standard Range | Custom |
|---|---|---|
| Height | 10 – 25 ft (3 – 7.6 m) | Up to 40 ft engineered |
| Material | Q235B / SS304 / SS316 | Duplex / 6063-T5 AL |
| Rung Diameter | Φ20 mm (0.79″) | Per spec |
| Rung Spacing | 280 mm / 11″ (≤300 mm) | Per project spec |
| Clear Width | 500 mm (19.7″) | Custom width |
| Cage Diameter | Φ700 mm (27.5″) | Custom |
| Cage Start | 2.2 m (7 – 8 ft) above base | Per code |
| Cage Extension | 42 in above top landing | Per code |
| Load Rating | 1.5 kN per rung (≈337 lbf) | Engineered |
| Weld Quality | ISO 5817 class C | Higher class |
| Fall Protection | Cage or PFAS | Ladder safety system |
Certifications
Compliance & DoCumentation (OSHA/BS 4211/EN ISO 14122-4)
- OSHA 1910.27 — Full Compliance
- BS 4211:2005+A1:2015
- EN ISO 14122-4
- AS 1657
- Cal/OSHA Title 8
Documentation Package
Every order ships with complete documentation — no extra cost, no paywall.
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Declaration of Conformity (DoC)
-
Material Test Certificates — EN 10204 3.1
-
Structural Calculations
-
Welding Procedure Specifications
-
Surface treatment certificates (HDG per ISO 1461)
Common questions
A lockable gate or cover that blocks access during maintenance or outage — we supply lockable swing gates at ladder landings.
Sliding-sleeve ladder safety systems (PFAS rails) that arrest falls, mounted on the ladder and supplied with a structural calc.
Every 50 ft (15 m) of climb per OSHA 1910.23(d), with the cage or rail continuing through the platform opening.
A ladder whose rails extend 42 in above the landing so you step through the opening — the safest roof-access configuration.
Yes — warning labels for fall protection, inspection and load limits are available and specified in the drawing review.
Fixed Ladder Safety
Fixed Ladder Safety — Fall Protection & Inspection Checklist
Safety on a fixed ladder is decided before anyone climbs: the right fall protection for the height, a ladder built to the numbers, and a routine inspection that catches wear early.
Fall Protection Systems
| System | Spec | Applies When |
|---|---|---|
| Safety cage | Φ700 mm hoops, start 2.2 m | Legacy ladders >24 ft (pre-2018 installs) |
| Well | 27–30 in enclosure | Legacy ladders, shaft access |
| Ladder safety system (PFAS rail) | Vertical rail + sliding sleeve, full height | New ladders >24 ft (OSHA 1910.28(b)(9)) |
| Cage + PFAS combo | Cage below, rail above | Retrofits and hybrid plants |
| No system | — | Climbs ≤24 ft with safe access |
Inspection Checklist
| Check | Frequency | What to Look For |
|---|---|---|
| Rungs | Monthly / before use | Bends, wear, loose welds, corrosion |
| Anchors & brackets | Monthly | Loose bolts, pulled anchors, rust at welds |
| Cage / well | Monthly | Missing hoops or bars, deformed enclosure |
| PFAS rail & sleeve | Per manufacturer | Clean rail, free-sliding sleeve, latch function |
| Galvanizing / coating | Annual | HDG 85–100 µm intact; touch up damage |
| Full documented check | Annual | Signed inspection record per site program |
Lockout matters too: before maintenance on or around the ladder, isolate energy sources and tag the ladder out. A safe ladder is built safe, inspected safe, and used safe — we cover the first part with compliant fabrication and full documentation.
Fixed Ladder Safety — FAQ
Above 24 ft (7.3 m) under OSHA 1910.28(b)(9) — with a cage or well on legacy ladders, and a PFAS or ladder safety system on new installations.
For new ladders OSHA requires PFAS above 24 ft — a rail arrests the fall, while a cage only limits it. On legacy plants a cage still satisfies the rule until 2036.
Visually before each use and monthly for rungs, anchors, and cage; a documented full inspection annually, plus PFAS checks per the manufacturer's schedule.
Correct rung spacing (10–14″), 16″+ clear width, 7″+ rung clearance, 42″ rail extension, fall protection above 24 ft — and documentation proving it (DoC, calcs).
Declaration of Conformity, MTC 3.1 material certificates, and structural calculations — including cage and PFAS rail components — with every order.
Proven in real facilities
Reference projects are shown by industry, country and scale. Client names are available on request with approval.
National utility projects — 15+ countries
23 documented projects, 2021-2025 · 2025
All standardsEnergy & industrial clients — Global
500+ projects since 2004 · 2004-2025
Full compliance docsLargest single order — Malaysia
60 units in one project · 2021
HDGGet Your Safety Quote
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Why Work With Dengtai?
Safety Engineered In
Cage, PFAS and lockout options from one factory.
24-Hour Quote
Engineering review + itemized quote within one day.
Full Compliance Docs
DoC, MTC 3.1, structural calcs included free.
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Related Fixed Ladder Lockout Pages
More on safety systems, cages, guards and the standards behind them.
Fixed Ladder Safety Cage
Φ700 mm cage, 2.2 m start, PFAS ready for OSHA
Cage Fixed Ladders
OSHA-style safety cage configurations
Fixed Ladder Guards
Guard protection around the climb path
OSHA Fixed Ladders
1910.27 and 1910.23 compliance requirements
Fixed Ladder Specifications
Φ20 mm rungs, 500 mm width, 1.5 kN rated
Compliance Standards
OSHA, BS 4211, EN ISO 14122-4 and AS 1657