LadderCageLadder Cage Install Guide
How To Build A Ladder Cage
Step-by-step ladder cage install and build guide with free drawings. Free installation documentation with every cage ladder order. Build to OSHA 1910.28 & EN ISO 14122-4.
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Step-by-Step Guide
How To Build A Ladder Cage - Step by Step
Measure, mark, bolt, verify — a ladder cage kit installs in four straightforward stages. Free drawings come with every order.
1. Measure
Confirm clear width, offset, cage start and exit height against your installation drawing.
2. Mark
Transfer the anchor and hoop positions onto the wall or ladder stiles with a chalk line.
3. Bolt
Fix brackets with M12 anchors, bolt the hoops and straps, then attach the flared entry.
4. Verify
Torque check every fixing and verify dimensions against the compliance checklist.
Measurement Parameters
How To Measure A Ladder Cage
Getting these numbers right is what makes the difference between a cage that fits first time and one that needs rework.
- Clear width — 500 mm (19.7 in) minimum behind rungs
- Offset / standoff — 200 mm from ladder face to cage
- Bracket spacing — 1800 mm between cage mounting brackets
- Cage start — 2.2 m above the floor
Specifications
Ladder Cage Install Specifications
Install kits are made-to-order with the engineered parameters below.
Get My Install Guide| Specification | Value |
|---|---|
| Rung Diameter | Φ20 mm |
| Rung Spacing | 280 mm (≤300 mm) |
| Clear Width | 500 mm (19.7 in) |
| Cage Diameter | Φ700 mm (hoops 40×5 @≤1500, straps 30×3) |
| Cage Start | 2.2 m above floor |
| Standoff / Offset | 200 mm |
| Bracket Spacing | 1800 mm |
| Anchors | M12 anchors, bolt-on assembly |
| Standards | OSHA 1910.28 · EN ISO 14122-4 |
Installation Drawings & Documentation
Installation Drawings & Documentation
Every order ships with installation documentation and drawings, plus the compliance file — so your install team never works without the paperwork.
- Installation Drawings
Free with every order, reviewed at quote stage
- DoC — OSHA 1910.28 & EN ISO 14122-4
Declaration of Conformity included
- MTC 3.1 & Structural Calcs
Material certs and engineer-signed calcs
Docs With Every Order
Installation documentation and drawings ship free with every cage ladder order.
24h Quote
Itemized quote in 24 hours from the factory floor.
15–25 Day Lead
500+ projects delivered across 50+ export countries.
Get the Install Guide
Get My Install Guide & Quote
Guide and quote within 24 hours. Tell us the height, installation environment and quantity — we send the install documentation with the order.
- Free install guide & drawings
- 24h itemized quote
- DoC, MTC & calcs included
Before You Strike an Arc
Self-Built Cage vs Factory Cage Ladder — Line by Line
Building a cage looks like a welding project. Legally it is a load-bearing protective structure, and every row below is a place where self-builds and factory builds part ways — usually at the paperwork, not the welds.
| Criterion | Self-Built | Factory (Dengtai) |
|---|---|---|
| Material traceability | Unknown-origin steel, no mill certificate | EN 10204 3.1 MTC per batch |
| Welding | Whoever is available, no qualification record | Qualified welders under controlled procedures |
| Load rating | Assumed, rarely tested | 1.5 kN per rung, Φ20 at 280 mm |
| Corrosion protection | Paint or one-off HDG dip, uneven | Hot-dip galvanized to ISO 1461, 85–100 μm |
| Compliance file | None possible | DoC, MTC and structural calcs with every order |
| Cost and timing | Hidden — materials, rework, evenings | $95/m HDG ex-works; 15–25 working days |
The self-build route can make sense for a low-risk farm structure. For anything an inspector, insurer or employee will rely on, the factory route buys the one thing a workshop cannot fabricate: documented proof that the cage works.
Where Self-Builds Actually Bite
The Five Failure Points of a Homemade Ladder Cage, in the Order They Arrive
A self-built cage rarely fails at the welding — it fails at the assumptions, the paperwork and the years after. The five failure points below are ordered the way they actually arrive in a self-builder's life: the first two bite during the build, the third bites at first inspection, the last two bite years later when nobody remembers the project. Read them before you buy a single length of bar.
| Failure Point | What the Self-Builder Does | What It Costs Later | The Factory Answer |
|---|---|---|---|
| 1 — The load assumption | Sizes hoops and rungs by eye or by what the yard stocks | No calculation sheet means no defensible design — the first question in any incident review | Every build carries an engineer-signed structural calculation sheet |
| 2 — The material origin | Buys untraceable bar from a local stockist | Unknown steel cannot be certified — insurers read that as an uncertified structure | EN 10204 3.1 MTC per batch, mill-traceable to the heat |
| 3 — The first inspection | Presents the finished cage with pride and no file | No DoC, no MTC, no weld record — the structure is functionally undocumented on the site register | DoC to OSHA 1910.23 and EN ISO 14122-4 ships with every order |
| 4 — The coating years | Paints it, or dips it once without surface control | Section loss begins quietly; a 1.5 kN rung becomes a hope by year five | Hot-dip galvanized to ISO 1461 at 85–100 μm — coating thickness measured, not promised |
| 5 — The decade question | Moves on; nobody holds the drawings | Future inspection has no baseline — wear cannot be proven, so replacement is assumed | Trial-assembly photos archived 10 years at the factory, retrievable |
None of these points says a skilled welder cannot make a beautiful cage — they say the value of a factory cage was never the welds. Send your climb height through the form and the free install guide arrives with a quote that prices the difference honestly, inside 24 hours.
The Honest Verdict on Building It Yourself
Reader Decision Guide: When Self-Build Is Viable — an Almost Empty List, Stated Honestly
We build cages for a living, and we will still tell you the truth: there is one situation where building your own makes sense, a second where it half-works, and a third that looks like thrift and is actually deferred liability. Find yours before the first cut, because the steel is the cheapest part of getting this wrong.
Viable — private, low-duty, nobody else depends on it
A farm shed climb that you alone use, below the code triggers, where a failure inconveniences you and no employer, insurer or public inspector ever asks for a file. Even here, copy the standard geometry — Φ700 barrel, hoops at 1500 mm, straps laced between — because those numbers are cheap discipline even when the paperwork is optional.
Half-works — skilled fabricator, missing file
A qualified workshop can match the welding — ISO 5817 Level C is a real skill set — but still cannot mill a certificate, sign a calculation sheet or issue a DoC after the fact. The steel passes the eye test and fails the audit. If the file matters anywhere in your structure's life, the workshop route stopped being viable at failure point 3.
Not viable — anyone else climbs it, or any rule applies
Employees, contractors, insurers, OSHA or EN duties — any one of these makes the self-built cage a liability you fabricated yourself. The factory equivalent is $95 per metre HDG, delivered in 15–25 days with MTC, calcs and DoC in the crate. Against a decade of exposure, the honest build is the cheap one.
Still weighing it? Send the drawing of what you plan to build — the free review marks it against the standard geometry and prices the factory alternative, no obligation, inside 24 hours.
What the Workshop Cannot Fabricate
What the Factory Route Puts in the Crate
Five features — the intangible half of every cage we ship.
| Feature | Advantage | Your Outcome |
|---|---|---|
| Engineer-signed calculation sheet | the design defended before anyone climbs | failure point 1 closed on delivery |
| EN 10204 3.1 MTC per batch | steel identity from mill to rung | insurers and auditors read certainty, not guesswork |
| DoC to OSHA 1910.23 and EN ISO 14122-4 | conformity declared by the fabricator | the first inspection passes with paper in hand |
| Drawings and install guide included | the DIY spirit spent on bolting, not engineering | your crew installs in hours with factory support |
| 10-year photo archive | as-built evidence held at the factory | the decade question answered by retrieval, not memory |