In the factory environment – where every detail must operate according to standards, from machines to people – railings and ladders are not simply secondary items. They are the safety shield for hundreds of employees every day.
However, in reality, many factory projects today still make basic mistakes when designing railings, stairs or climbing systems, leading to occupational accident risks and difficulties in the operation and maintenance process.
So what are the mandatory technical standards when designing railings and ladders in factories? How to ensure safety – sustainability – meeting inspection standards, while still optimizing costs and being suitable for actual production?
🧱 1. Railing height – cannot be “estimated by feeling”
This is a core element of occupational safety but is often overlooked or distorted in construction.
📏 Recommended standards:
- Guardrails for work areas, corridors, and operating floors: ≥ 1100 mm from the floor
- Auxiliary guardrails (to prevent falling objects) or in less dangerous places: ≥ 900 mm
- Must have a foot guard ≥ 100 mm high at the bottom to prevent objects from slipping
✅ Complying with this standard is a prerequisite for the factory to be qualified to operate and be assessed as safe by labor inspection organizations.
🪜 2. Ladder structure – safety is not only about height
Ladders (usually fixed metal ladders mounted on walls or steel frames) in factories need to fully meet the requirements of distance, cross-section and materials to ensure safety when maintaining or moving vertically.
📌 Common technical requirements:
- Ladder angle: 75–90 degrees
- Step spacing: 250–300 mm
- Step handle diameter: 20–35 mm
If the height is over 3m: a safety cage or safety rope system is required
⚠️ Many serious incidents have occurred simply because the step design is too narrow, the surface is slippery or there is a lack of protective cages.
In the factory environment, especially in industries with chemicals, high temperatures, and high humidity such as: food, pharmaceuticals, mechanics, electroplating..., the materials for railings and ladders need to:
- Good load-bearing capacity according to ISO or TCVN standards
- Anti-slip, especially at the steps and handrails
- Anti-rust, anti-corrosion, best with hot-dip galvanized steel or 304 stainless steel
🎯 The surface should also be embossed or coated with anti-slip epoxy paint to increase safety when there is grease or water spillage.
📐 4. Distance – emergency exit – technical corridor
A factory cannot design railings and ladders separately. All must be within the overall flow of movement and operation.
📋 Things to note:
Width of passage ≥ 600 mm, does not obstruct traffic flow
The ladder does not block the equipment, ensuring easy access for employees when maintenance is needed
There is a safe gap ≥ 75 mm between the railing and the wall/equipment next to it
The location of the ladder is reasonable, does not create a "blind spot" in observation, which can easily cause collisions
🧠 CMC Architects – Safe factory design solutions down to the smallest detail
At CMC Architects, we understand that:
A small detail like a railing or ladder can make a big difference in operation and human protection.
We are committed to:
- Strictly comply with Vietnamese and international technical standards
- Design railings and ladders closely linked to production flow and actual structure
- Integrate BIM technology to simulate, test, and synchronize every detail before construction
- Choose standard materials, optimize costs and durability
💬 How about you?
- Are you preparing to build or expand a factory?
- Are you looking for a solution to design steel structures, railings, and ladders that meet safety standards and are easy to construct?
- Have you ever encountered the situation of "beautiful design but inconvenient construction"?
📩 Leave a comment below or contact CMC Architects now for free consultation - from drawings to complete solutions.
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✅ Download the free checklist “Design standards for railings and ladders in factories” at cmcarchitects.com
✅ Share the article with investors, construction engineers or factory operators
✅ Register for a 1:1 consultation with an experienced industrial architect from CMC Architects
