Factory-Direct Since 2004
Retractable Fixed Ladders
Retractable fixed ladders engineered to your space — custom mechanisms and locking verified in structural calcs. Quote in 24 hours.
Nest / Fold Mechanism
Rung Width
Custom Heights
Rung Load Rating
How the Mechanism Works
Fixed Retractable Ladder
A fixed retractable ladder is a permanently anchored access ladder whose rung section slides or folds away when not in use — keeping a hatch, loft or manhole floor clear. The mechanism and locking are engineered to your space, not picked from a catalogue.
1. Engineered to Your Space
We start from your hatch or floor opening: travel length, stowed height, ceiling clearance and the weight you need to support.
2. Custom Mechanism & Locking
Telescoping or folding rungs, spring or counterweight assist, locking pins or cam locks — the mechanism is speced to your build and verified in the structural calc.
3. Verified & Shipped
Mechanism loading is checked in the structural calcs, the unit is dry-fitted at the factory, and the DoC ships with the crate.
Built to Your Drawing
Send your drawing or just the opening dimensions. We return a shop drawing for approval within 4 hours, then build the retractable fixed ladder to that exact geometry.
Build Options
Retractable Fixed Ladder Options & Configurations
Three mechanism families, all built to your drawing with locking to spec.
Fixed Telescopic Loft Ladder
Concertina rungs that nest into a compact stowed height — the classic for loft hatches and small openings.
Wall-Fold Retractable Ladder
Rungs fold flat against the wall when stowed — ideal where the floor must stay clear for carts and traffic.
Custom Mechanism Build
Spring assist, counterweight, locking pins or cam locks — we engineer the mechanism to your hatch and load.
Certifications
Compliance & DoCumentation
- OSHA 1910.27 — fixed ladder fall-protection rules
- BS 4211 — permanent safety ladders
- EN ISO 14122-4 — permanent means of access
- AS 1657 — fixed-ladder practice
Documentation Package
DoC, MTC and structural calcs — the paperwork for OSHA/EN compliant builds.
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Declaration of Conformity (DoC)
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Material Test Certificates — EN 10204 3.1
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Structural Calculations (incl. mechanism loading)
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Welding Procedure Specifications
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Surface treatment certificates (HDG per ISO 1461)
Dimensions & Standards
Fixed Retractable Ladder Specifications & Dimensions
Rung geometry follows the same standards as any fixed ladder; the retract travel, stowed height and locking are custom to your opening. Every figure is on the shop drawing we send for approval.
No Middleman Markup
You buy the mechanism direct from the factory that welds it — the custom work is priced line by line.
| Specification | Standard Range | Custom |
|---|---|---|
| Extended Height | 2 – 6 m | Engineered to opening |
| Stowed Height | Compact nest / wall-fold | Per hatch size |
| Material | Q235B / SS304 / SS316 | 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 |
| Mechanism | Telescopic / fold / custom | Spring & counterweight |
| Locking | Locking pins / cam locks | Per spec |
| Load Rating | 1.5 kN per rung | Verified mechanism load |
| HDG Thickness | 85 – 100 μm (ISO 1461) | Heavier coating |
| Finish | HDG / Pickled / Painted | Electropolish (SS) |
Factory-Direct Pricing
Factory-Direct Pricing & 24h Quote
Free drawing review for confined-space access. Itemized by material, mechanism, machining, finishing and packaging.
Custom quotation priced by weight & process. Industry reference: retractable fixed ladders ≈ USD 899–1,099/ton.
Export to 50+ Countries
Global Shipping, Factory Fast
VCI rust protection, ISPM 15 heat-treated crates, EXW / FOB / CIF terms. Production 15–25 business days.
Common questions
Telescoping sections, folding (hinged), spring assist or counterweight assist - engineered to your opening, not picked from a catalogue.
Q235B, SS304/SS316 or 6063-T5 aluminum; finish HDG 85-100 μm (ISO 1461), pickled, painted or electropolished for stainless.
Extended height 2-6 m as standard, engineered to your opening; stowed height follows your ceiling clearance.
Φ20 mm rungs at 280 mm / 11 in spacing (≤300 mm), 500 mm clear width - the same geometry as our standard fixed ladders.
A DoC plus structural calcs verifying mechanism and locking loads, and the factory dry-fit record - with every crate.
Deployment Mechanism & Install Conditions
Fixed Retractable Ladder — Mechanism, Fit and Locking
Three things make or break a retractable ladder: the deploy mechanism, the opening it fits into, and the lock that holds it. Each is engineered to your hatch — and verified in the structural calcs.
Install Conditions & Safety Locking
Send the opening dimensions or your drawing — we return a shop drawing for approval within 4 hours, then build and lock-test the mechanism to that exact geometry.
Deployment Mechanism Options
| Mechanism | How It Works | Best For |
|---|---|---|
| Telescoping sections | Nested rung sections slide out and lock | Hatch openings with tight stowed height |
| Folding (hinged) | Sections hinge up and fold flat | Loft and ceiling hatches, low stowed profile |
| Spring assist | Counterbalance spring eases deploy and stow | Light steel / aluminium builds, one-hand use |
| Counterweight assist | Weighted mechanism balances heavy sections | Taller or heavier duty access, daily use |
Install Conditions & Safety Locking
| Condition | Spec | Note |
|---|---|---|
| Opening size | Built to your hatch / floor opening | Frame welded to suit the exact rough opening |
| Stowed height | Per ceiling clearance | Confirmed from your drawing before build |
| Travel length | Per drawing | Deployed length matched to the floor level |
| Load rating | 1.5 kN per rung | Mechanism loading in the structural calcs |
| Safety lock | Locking pins / cam locks | Auto-engage at full extension, positive stop |
| Power | None required | Manual with spring / counterweight assist |
| Trial fitting | Dry-fitted at factory | Deploy-stow cycle checked before shipment |
Fixed retractable ladder questions
Locking pins or cam locks auto-engage at full extension with a positive stop — the locking load is verified in the structural calcs.
Opening size, travel length, stowed height and ceiling clearance. Send a drawing or the dimensions and we return a shop drawing for approval within 4 hours.
No — it is fully manual with spring or counterweight assist, so it keeps working with no wiring, motors or maintenance contracts.
1.5 kN per rung, with the mechanism and locking included in the structural calcs that ship with the order.
Yes — we build the frame to your existing opening and rough opening dimensions, then dry-fit the full deploy-stow cycle at the factory.
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 Retractable Ladder Quote
Talk to an Engineer
Free drawing review for confined-space access. Get your quote today — no obligation.
Why Dengtai Retractable Builds?
Verified Mechanism Load
Locking and spring assist checked in the structural calc.
24-Hour Quote
Shop drawing within 4h, itemized quote within one day.
Global Delivery
8–12 containers/month. VCI + ISPM 15 packaging.
Request a Retractable Ladder Quote
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Talk to an Engineer
Free drawing review, quote in 24 hours