LadderCageHot-Dip Galvanized to ISO 1461
Custom Steel & Galvanized Cage Ladder
Custom steel cage ladders — hot-dip galvanized to ISO 1461, zinc thickness your choice. OSHA and EN ISO 14122-4 compliant; HDG report and mill certs with every order.
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Hot-Dip Galvanizing You Can Specify
Custom Galvanized Cage Ladder
Hot-dip galvanized to ISO 1461 — zinc thickness your choice, matched to your corrosion environment.
| Environment | Coating |
|---|---|
| C3 — Moderate | ISO 1461, typical 85–100 μm |
| C4 — Coastal | Specified above ISO 1461 minimum |
| C5 — Industrial | Heavy-duty HDG, thickness by spec |
Pick the Steel, Not Just the Shape
Steel Grade & Coating Matrix for Custom Builds
Custom geometry is half the spec — the other half is matching steel and coating to the atmosphere the ladder will live in. This is the matrix our engineers select from.
| Environment (ISO 9223 class) | Grade | Coating | Typical Duty |
|---|---|---|---|
| C2–C3 inland / general industrial | Q235B | HDG ISO 1461 | roofs, warehouses, plants |
| C4 coastal / heavy industry | Q235B / Q345B | HDG heavy or duplex | ports, foundries |
| C5 marine-surf / chemical | Q345B or SS316 | duplex / pickled | offshore-adjacent, chemical |
| Tall builds 15 m+ / heavy platforms | Q345B | HDG | silos, stacks, towers |
| Washdown / food / pharma | SS304 | pickled & passivated | hygiene zones |
Every grade ships with its EN 10204 3.1 MTC and — for HDG — the ISO 1461 coating report. Not sure of your class? Send the site address and environment photos; we grade it for you.
Specifications
Hot-Dip Galvanized Specifications (ISO 1461)
Every custom steel cage ladder is made-to-order in Q235B HDG with the engineered parameters below.
Get My Steel 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 |
| Material | Q235B, hot-dip galvanized ISO 1461 |
| Customization | Full-size custom — any height, width, cage config |
| Standards | OSHA 1910.28 · EN ISO 14122-4 |
Compliance & Documentation
Compliance & Documentation (HDG Report / MTC)
HDG report and mill certs ship with every order — no chasing paperwork after delivery.
- HDG Coating Report
Measured zinc thickness per ISO 1461
- MTC 3.1 Mill Certificate
EN 10204 3.1 for Q235B
- DoC — OSHA & EN ISO 14122-4
Declaration of Conformity with every order
Custom Pricing
Custom Pricing & 24h Quote
Free drawing review and a 24-hour quote on custom steel ladders. Production typically takes 15–25 working days.
Free Drawing Review
We redline your drawings at no charge before you commit.
24-Hour Itemized Quote
Material, galvanizing, machining, finishing, packaging — line by line.
Factory-Direct
Buy direct from the production floor — no distributor markup.
Steel Decisions, Priced by Stage
Change Cost Table: What a Grade or Spec Change Costs at Each Stage
On a custom steel build, most late changes are material changes — a grade swap for a taller climb, heavier zinc for a coastal site. Steel is ordered per project, which is exactly why the same change is free in week one and a remanufacture in week four.
| Stage | Spec Change You Bring | Cost to You |
|---|---|---|
| Concept and CAD (1–3 days) | grade Q235B to Q345B, rung sections, hoop sizes, widths — full re-spec | Free — the drawing and the engineer review re-issue at no charge |
| Quote stage (24h) | finish class, zinc thickness target, packaging, quantity | Free — requote line by line next day |
| Approved, before steel ordered | grade swap, cage configuration, anchor pattern | Free — nothing is stocked; material is bought to your release |
| Steel cut, welding underway | uncut accessories: hoops, gates, brackets, tray supports | Material difference only — no penalty on affected parts |
| Welded, pre-galvanizing | add-on weldments only — grade or section changes mean new steel | New parts at difference plus bench hours |
| After ISO 1461 dipping | no structural change survives re-dipping; coating class is final | Full remanufacture of affected parts — we say plainly if a new unit is cheaper |
One implication worth writing down: lock the environmental class before the drawing is approved, because zinc thickness is decided once — at the kettle.
Specifying Custom Steelwork
The Custom Steel Decision Guide: Red Flags and Green Lights
A custom steel cage ladder is a welded structure that people climb for 30 years. The spec decisions are where value is either engineered in or quietly shaved out — these lists keep you on the right side.
Red flags — the steel spec is being shaved
- "Value engineering" you did not request — thinner rails or hoops proposed after quoting is spec cutting, not saving
- Zinc claims without a report — "heavy galvanized" is not a number; ISO 1461 with local ≥85 μm is
- No weld acceptance level named — custom steelwork without ISO 5817 Level C on paper is trusting the welder's mood
- Grade substitutions without MTC — a Q345B promise without EN 10204 3.1 paperwork is a Q235B coin flip
Green lights — the spec is working for you
- Grade matched to duty — Q235B standard, Q345B tall climbs and petrochemical, SS304/316 corrosive duty
- HDG report with the order — measured thickness on your assemblies, plus the MTC set
- Single-piece to 14 m, flanged beyond — honest kettle limits, engineered multi-run sections with platforms
- Attachments engineered in — signs, cable trays and brackets welded before galvanizing, not drilled after
Get a Custom Galvanized Cage Ladder Quote
Get a Custom Steel Cage Ladder Quote
Tell us your size, zinc requirements, environment and quantity — an engineer replies within 24 hours with galvanizing options and a quote.
- Zinc thickness your choice
- HDG report & MTC included
- Free drawing review
Custom Steel Value at a Glance
What a Custom Steel Build Buys Your Structure
Five features of the custom steel route, and the outcome each lands on your site.
| Feature | Advantage | Your Outcome |
|---|---|---|
| Grade engineered to duty | Q235B / Q345B / SS304 / SS316 by environment | steel matches the site, not the stockroom |
| ISO 1461 HDG with report | 85–100 μm verified on your assemblies | corrosion budget real for decades, on paper |
| Attachments welded pre-dip | trays, signs and brackets galvanized in place | no field drilling through the zinc |
| ISO 5817 Level C welds | in-process inspection, records kept 10 years | every joint auditable years later |
| 24h quote with free review | spec priced line by line in a day | grade decisions made on figures, not guesses |