Standard Step-Over Kits
Handrailed step-over kits in five heights from 600mm to 1400mm, freestanding or fixed, for pipework, plant and roof level changes. Quote within one hour.
Not Sure What You Need?
Send a sketch, a photo or your measurements. We draw it up free and quote within one hour.
Standard Step-Over Kits: Sizes, Codes and What You Get
Standard step-over kits give a safe, handrailed route over pipework, plant and equipment, and between roof levels. There are ten kits: five heights, 600mm, 800mm, 1000mm, 1200mm and 1400mm, each in a freestanding version for membrane, asphalt and PVC roofs and a fixed version for concrete roofs and floors. Every kit is 1000mm wide and listed to BS EN 14122 Part 3.
All ten are held in stock, with next-day delivery on stock orders. Tell us the obstacle height and the roof surface and we will confirm the kit and quote within one hour during working hours.
| Obstacle height | Freestanding: membrane, asphalt, PVC roofs | Fixed: concrete roofs and floors |
|---|---|---|
| 600mm | STMB600 | STCR600 |
| 800mm | STMB800 | STCR800 |
| 1000mm | STMB1000 | STCR1000 |
| 1200mm | STMB1200 | STCR1200 |
| 1400mm | STMB1400 | STCR1400 |
How to Read the Kit Codes
- STMB kits are freestanding, with base feet for membrane, asphalt and PVC roofs. Nothing goes through the waterproofing.
- STCR kits are fixed, for concrete roofs and floors you can bolt down to.
- The number is the obstacle height the kit is made for, in millimetres. An STMB800 is a freestanding kit for an 800mm obstacle. An STCR1200 is a fixed kit for a 1200mm obstacle.
What Is in Each Kit
- Double handrail on both sides
- Toe-boards
- Anti-slip nylon treads
- Tubular uprights in galvanised steel tube, joined with tubular galvanised fittings
- Base feet to suit the roof type
- Full assembly instructions
Kits are supplied flat packed and pre-assembled as far as possible to save time on site. They go together without specialist tools and with no welding, and because the frame is bolted rather than welded it can be adjusted, repaired or moved later.
Not Sure What You Need?
Send a sketch, a photo or your measurements. We draw it up free and quote within one hour.
Specification at a Glance
| Item | Standard step-over kits |
|---|---|
| Obstacle heights | 600mm, 800mm, 1000mm, 1200mm, 1400mm |
| Width | 1000mm, all kits |
| Versions | STMB freestanding, STCR fixed |
| Surfaces | STMB: membrane, asphalt, PVC roofs. STCR: concrete roofs and floors |
| Guarding | Double handrail both sides, toe-boards |
| Treads | Anti-slip nylon |
| Frame | Galvanised steel tube and tubular galvanised fittings |
| Listed standard | BS EN 14122 Part 3 |
| Supplied | Flat packed, with full assembly instructions |
| Not listed for | Metal roofs, obstacles over 1400mm |
Choosing the Right Kit
Height. Measure the obstacle at its highest point and pick the kit for that height. If your measurement falls between two kit heights, send it to us and we will confirm which kit suits.
Surface. STMB for membrane, asphalt and PVC roofs. STCR for concrete roofs and floors.
Room. Every kit is 1000mm wide, so check the clear width between plant and other obstacles before you order. A Portsmouth firm asked us about STMB600 and STMB800 kits, but photos of the roof showed too little room. We designed a bespoke narrow step-over with a maximum width of 800mm instead.
Compliance. The kits are listed to BS EN 14122 Part 3. Whether the finished installation meets your site's work at height requirements is for whoever installs and signs it off.
When a kit won't fit. Standard kits are not listed for metal roofs or for obstacles over 1400mm. For those, see bespoke step-overs. For low trip hazards like cable trays, a mini step-over kit is smaller and simpler.
Where They Are Used
- Roof maintenance routes over pipework, ducting and plant.
- Changes in roof level, where one section sits higher than the next.
- Warehouses and factories, where conduits and machinery cut across a walkway. See industrial access walkways.
On a roof they sit alongside roof edge protection and skylight guardrails on the same route.
How to Order
- Measure the obstacle height at its highest point.
- Check the roof or floor surface and the clear width available.
- Pick STMB (freestanding: membrane, asphalt, PVC) or STCR (fixed: concrete).
- Request a quote or call 01905 779944. We reply within one hour in working hours.
Why Buy from Fisher Alvin
- All ten kits in stock, with next-day delivery on stock orders.
- Quote within one hour, Monday to Friday, 8am to 5pm.
- Product advice by phone or email on which kit and height suits. Free design service if you need a layout drawn up.
- Same parts as our bespoke step-overs, so if a kit turns out not to fit, the answer is usually a different arrangement of stocked parts.
Standard Step-Over Kit Questions
What heights do standard step-over kits come in?
Five heights for obstacles of 600mm, 800mm, 1000mm, 1200mm and 1400mm. All kits are 1000mm wide.
What is the difference between STMB and STCR kits?
STMB kits are freestanding, for membrane, asphalt and PVC roofs, so nothing goes through the waterproofing. STCR kits are fixed, for concrete roofs and floors.
What comes in a standard step-over kit?
A double handrail on both sides, toe-boards, anti-slip nylon treads, galvanised tube and tubular galvanised fittings, base feet to suit the roof, and full assembly instructions.
Which standard are they listed to?
Standard step-over kits are listed to BS EN 14122 Part 3.
Can I use one on a metal roof?
Standard kits are not listed for metal roofs. Send us the roof details and we will advise on the components for a bespoke step-over that suits it.
What if I don't have 1000mm of room?
Every standard kit is 1000mm wide. Where there is less room we can design a bespoke step-over from the same parts. One narrow step-over we designed had a maximum width of 800mm.
Do the kits come assembled?
They are supplied flat packed, pre-assembled as far as possible, with full assembly instructions, and go together without specialist tools.
Standard Step-Over Kits Guides and Related Ranges
Guides: roof step-over platforms for pipes and cables, step-over kits and work at height and when a standard step-over won't fit.
Related: all step-over platforms, mini step-over kits, bespoke step-overs, roof edge protection and key clamps and galvanised tube.
Recent projects
A few of the jobs we have supplied. Every one was quoted, drawn up and delivered by the Fisher Alvin team.
Tell Us the Job. We Quote Within One Hour.
In working hours, with a free design service if you need the layout drawn up. Or call 01905 779944.












