EN124 Load Classes Explained: A15 to F900 Complete Guide
The EN124:2015 standard is the international benchmark for manhole covers and gully tops. If you're importing covers for municipal projects, understanding its load classification system is essential — it determines whether your covers will pass inspection, perform safely, and comply with tender specifications.
What Is EN124:2015?
EN124 is the European standard that governs:
- Manhole tops and gully tops for vehicle and pedestrian areas
- Materials, design, testing, and marking requirements
- Six distinct load classes (A15 through F900)
- Force testing methodology (2 million load cycles at defined forces)
Products certified to EN124:2015 carry CE marking for the European market and are accepted in most countries worldwide that reference European standards.
The Six EN124 Load Classes
Each class is defined by a test load (the static force applied during certification testing) and intended application:
A15 — 15 kN Test Load (1.5 tons)
Application: Areas exclusively for pedestrians and cyclists.
- Pedestrian zones, gardens, landscaped areas
- Green spaces and parks
- Areas with zero vehicle access
- Typical cover size: 300×300mm to 600×600mm
B125 — 125 kN Test Load (12.5 tons)
Application: Pedestrian areas with occasional light vehicles.
- Residential sidewalks and footpaths
- Private car parks and driveways
- Garage forecourts
- Areas where only passenger cars operate
- Our B125 covers start at 65kg per set
C250 — 250 kN Test Load (25 tons)
Application: Areas with regular vehicle traffic.
- Residential streets and service roads
- Commercial parking lots and car parks
- Roadside verges and curbside areas
- Light delivery vehicle zones
- Our C250 covers start at 95kg per set
D400 — 400 kN Test Load (40 tons)
Application: Main roads and heavy traffic areas.
- Highways, arterial roads, and main streets
- Ports, docks, and container yards
- Industrial areas with forklift traffic
- Bus lanes and public transport corridors
- Our D400 covers start at 145kg per set (600×600mm)
E600 — 600 kN Test Load (60 tons)
Application: Heavy industrial areas.
- Heavy industrial zones with frequent truck traffic
- Loading docks and freight terminals
- Areas with tracked vehicles
- Special industrial applications
F900 — 900 kN Test Load (90 tons)
Application: Special high-load areas.
- Airport runways, taxiways, and aprons
- Military installations
- Ultra-heavy industrial applications
- Special civil engineering projects
How to Select the Right Load Class
Ask yourself these three questions:
1. What vehicles will drive over it?
| Vehicle Type | Minimum Load Class |
|---|---|
| Bicycle / pedestrian only | A15 |
| Passenger cars (< 3.5t) | B125 |
| Vans / light trucks (3.5-7.5t) | C250 |
| Heavy trucks / buses (> 7.5t) | D400 |
| Articulated trucks / container handlers | E600 |
| Aircraft | F900 |
2. Is there a "dynamic factor"?
A 40-ton truck hitting a pothole can exert forces well above its static weight. EN124 test loads already include a dynamic safety factor, but for extremely high-speed roads or heavy braking zones, consider specifying one class above the minimum.
3. What do local regulations require?
Many countries mandate minimum load classes:
- EU member states: Follow EN124 directly
- Middle East / GCC: Typically specify D400 minimum for all road applications
- Southeast Asia: Often reference EN124 in tender documents
- Africa: Increasing adoption of EN124 as reference standard
Common Mistakes Buyers Make
| Mistake | Consequence | Solution |
|---|---|---|
| Choosing lowest class to save cost | Covers fail within months | Always match to actual traffic |
| Ignoring dynamic loads | Cracked covers on speed bumps | One class above if heavy braking |
| Not verifying test reports | Uncovers may fail cert. inspection | Always request EN124 test docs |
| Using A15 for deliveries | Delivery trucks destroy covers | Know ALL vehicles accessing area |
EN124 Testing Requirements
For a cover to carry the EN124 mark, it must pass:
- 2 million load cycles at the class test force
- No cracking, permanent deformation >1mm, or functional failure
- Skid resistance test (minimum PTV 45-50 depending on class)
- Seating verification (maximum 0.25% gap relative to clear opening)
This is rigorous testing, which is why you should always buy from manufacturers with in-house testing facilities — like Guanxing Casting, where every batch undergoes load testing before shipment.
Our EN124 Certified Product Range
| Model | Class | Size | Weight | Typical Application |
|---|---|---|---|---|
| GX-B125-600-45-700 | B125 | 600×600mm | 65kg/set | Residential walkways |
| GX-C250-600-55-740 | C250 | 600×600mm | 95kg/set | Commercial parking |
| GX-D400-600-65-760 | D400 | 600×600mm | 145kg/set | Highways, main roads |
| GX-D400-700-75-840 | D400 | Ø700mm | 175kg/set | Arterial roads |
| GX-D400-LOCK | D400 | 600×600mm | 155kg/set | High-theft risk areas |
Request a quote with your specific load class requirements →