29 CFR 1910.27 Compliance-First
1910.27 Fixed Ladders
OSHA 1910.27 fixed ladders built to the letter of 29 CFR 1910.27 — 10–14in rung spacing, 16in climb width, cage-to-PFAS guidance. Full DoC and structural calcs with every order.
Rung spacing
Climbing width
PFAS fall protection
Included every order
OSHA 1910.27 Key Requirements
10–14 in
Rung spacing (25–36 cm)
16 in min
Climbing width (41 cm)
Over 24 ft
PFAS or ladder safety system
DoC + MTC 3.1
Included with every order
29 CFR 1910.27 vs Cal/OSHA 3277 vs ANSI A14.3
1910.27 Fixed Ladders
Every 1910.27 fixed ladder is fabricated, welded and documented against the strictest reading of the standard — with the numbers you need to sign off your project.
| Requirement | OSHA 1910.27 | Cal/OSHA Title 8 §3277 | ANSI A14.3 |
|---|---|---|---|
| Rung spacing | 10–14 in (25–36 cm) | ≤12 in (30 cm) | 10–14 in (25–36 cm) |
| Climbing width | ≥16 in (41 cm) | 16 in (41 cm) | ≥16 in (41 cm) |
| Rung-to-wall clearance | 7 in minimum | Per Title 8 | 7 in minimum |
| Fall protection trigger | >24 ft: PFAS or ladder safety system | >24 ft | >24 ft |
| Rest platforms | Every 50 ft max | Per Title 8 | Every 50 ft max |
| Cage start height | 7–8 ft above grade | 7 ft | 7 ft |
| Cage extends above landing | 42 in | 42 in | 42 in |
We build to the strictest applicable value on every 1910.27 fixed ladder — dimensional checks come from our own structural calcs, included in the document pack.
Compliance-First Configurations
29 Cfr 1910.27 Fixed Ladders Options & Configurations
Four build paths cover every 1910.27 fixed ladder project — from legacy cage retrofits to 2018-update PFAS-ready new installs.
Safety Cage
Hoops start 7–8 ft above grade, extend 42 in above the landing.
PFAS-Ready
Ladder safety system rail for 2018-update compliance above 24 ft.
Rest Platforms
Landings every 50 ft for tall fixed ladders over 50 ft of climb.
Walk-Thru
Through-access at the top landing for roof and tank entry points.
2018 Rule Change
1910.27 PFAS Transition — Ladders Over 24 ft
For fixed ladders installed after November 19, 2018 that extend more than 24 ft, a cage alone no longer satisfies 1910.27. You need a personal fall arrest system (PFAS) or a ladder safety system.
- Cage-to-PFAS retrofit assessments for existing ladders
- Ladder safety system rail options for new 1910.27 installs
- 20ft+ fall protection engineering included in your quote
- 1910.27(d) cage / well / ladder safety device requirements addressed in the DoC
Which path fits your project?
New install >24 ft
Spec a PFAS-ready ladder with a ladder safety system rail — no cage needed.
Existing cage >24 ft
We supply retrofit brackets and rails to bring legacy cages up to the 2018 rule.
Under 24 ft
Cage-only and cage-free options both remain compliant below the threshold.
Dimensions
1910.27 Fixed Ladders Specifications & Dimensions
Standard heights 10–25 ft, custom engineering up to 40 ft. Every dimension verified against 29 CFR 1910.27 before release for manufacture.
| Specification | Standard Range |
|---|---|
| Rung diameter | Φ20 mm (0.79″) |
| Rung spacing | 10–14 in (280 mm nominal) |
| Clear width | 500 mm (19.7″) |
| Cage diameter | Φ700 mm (27.5″) |
| Load rating | 1.5 kN per rung |
| Material | Q235B / SS304 / SS316 |
| HDG thickness | 85–100 μm (ISO 1461) |
| Fall protection | Cage or PFAS-ready |
1910.27 Fixed Ladder Requirements, Clause by Clause
29 CFR 1910.27 is the OSHA rule that governs fixed ladders in general industry. It sets the dimensional floor every compliant fixed ladder must meet: rungs evenly spaced 10–14 in (25–36 cm) apart, center to center; a minimum climbing width of 16 in (41 cm) between rails; and clearance behind the rungs so feet and boots do not jam. Numbers outside this band fail a compliance review, which is why our standard 280 mm rung pitch and 500 mm rail width are engineered inside the range with margin.
The biggest change to 1910.27 arrived with the 2018 Walk-Working Surfaces update. For fixed ladders installed after November 19, 2018 that rise more than 24 ft, OSHA no longer accepts a cage or well as fall protection — the ladder must be equipped with a personal fall arrest system (PFAS) or a ladder safety system. Ladders installed before that date may keep a cage or well only until November 18, 2036, after which they must be replaced or retrofitted.
1910.27 also governs tall-run geometry: ladders over 50 ft need landing platforms at intervals of no more than 50 ft, and where a cage is used it must start 7–8 ft above the access level and extend 42 in above the top landing. Every order ships with a DoC naming the 1910.27 requirements met, backed by MTC 3.1 and structural calcs.
Practice checklist for specifiers
- Rung pitch - verify 10–14 in (25–36 cm) center to center on the drawing before fabrication
- Climbing width - keep rail centers at 16 in (41 cm) or more
- Over 24 ft, new installs - spec a PFAS or ladder safety system, not a cage
- Over 50 ft - add landing platforms every 50 ft and confirm them in the structural calcs
- Existing cages - schedule the retrofit before November 18, 2036
- Documentation - DoC (OSHA 1910.27 + ANSI A14.3), MTC 3.1 and structural calcs ship with every order
Clause FAQ
It sets the dimensional and configuration requirements for general-industry fixed ladders — rung spacing, climbing width, clearances, cages/wells, PFAS or ladder safety systems and landing platforms — with the fall-protection duty itself assigned in 1910.28.
10–14 in (25–36 cm) center to center, evenly spaced. Our standard 280 mm pitch sits inside that band with margin on both sides.
No. For ladders installed after November 19, 2018 that exceed 24 ft, OSHA requires a PFAS or ladder safety system — a cage alone no longer counts as fall protection.
Existing ladders over 24 ft that rely on a cage or well must be replaced or retrofitted with a PFAS or ladder safety system by November 18, 2036.
Where a cage is used, it starts 7–8 ft above the access level and extends 42 in above the top landing — the geometry we build into caged configurations.
Certifications
Compliance & Documentation
- OSHA 1910.27 — Full Compliance
- ANSI A14.3-2008 (R2018)
- BS 4211:2005+A1:2015
- EN ISO 14122-4
- Cal/OSHA Title 8
1910.27 Documentation Package
Every order ships with the compliance docs your EHS team needs — no extra cost, no paywall.
- Declaration of Conformity (DoC)
- Material Test Certificates — EN 10204 3.1
- Structural Calculations
- Welding Procedure Specifications
- Surface treatment certificates (HDG per ISO 1461)
US & Global Shipping
Built to 1910.27, Shipped to 50+ Countries
- 8–12 × 40ft containers shipped per month
- VCI rust protection + ISPM 15 heat-treated crates
- EXW / FOB / CIF terms available
- Export documentation matched to your destination port
Factory-Direct Pricing
Factory-Direct Pricing & 24h Quote
No middleman markup. Material, machining, finishing, packaging — every line item transparent on your itemized quote.
Custom quotation priced by weight & process. Industry reference: caged ladders ≈ USD 899–1,099/ton.
OSHA 1910.27 Answers
1910.27 Fixed Ladder Questions
For ladders installed after Nov 19, 2018 that extend more than 24 ft, yes — 29 CFR 1910.27 requires a personal fall arrest system or a ladder safety system. A cage alone no longer satisfies the rule. We quote PFAS-ready rails and retrofits on request.
OSHA 1910.27 requires rungs spaced evenly from 10 to 14 inches (25–36 cm) apart, measured center to center. Our standard 280 mm pitch sits inside that band with margin.
Fixed ladders more than 50 ft tall need a landing platform at least every 50 ft. We engineer platform spacing into the structural calcs and supply the landings as part of the package.
Per 1910.27, a cage starts 7–8 ft above the base of the ladder and extends 42 inches above the top landing or access level. We set hoop spacing and diameters to match.
Common questions
Under 1910.27, ladders exceeding 50 ft need landing platforms at intervals no greater than 50 ft — we integrate them into the design.
At least 16 in (41 cm) between rails — our standard 500 mm (≈20 in) clear width exceeds it.
At least 7 in between the rungs and the structure behind, so a climber's feet clear the wall — verified on every drawing.
Yes — we supply and fit-compatible ladder safety systems and PFAS-ready anchor points, with structural calcs for the retrofit.
Yes — structural calculations, DoC and MTC 3.1 are included free with every 1910.27 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
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DoC, MTC, structural calcs included free.
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Related 1910.27 Fixed Ladders Pages
Dive deeper into OSHA compliance, configurations, and ladder standards.
OSHA Fixed Ladder Rules
1910.23 and 1910.27 rule requirements side by side
OSHA Fixed Ladder Specifications
Rung spacing and cage dimensions in detail
Cal/OSHA Fixed Ladders
Title 8 3277 differences from federal OSHA
Fixed Ladder Standards
Clearances, cages and platform spacing per code
Cage Fixed Ladders
OSHA-style safety cage configurations
All Ladder Standards
OSHA, BS 4211, EN ISO 14122-4 and AS 1657