Description
A robust D400 ductile iron access cover and frame suitable for carriageways, industrial estates, distribution centres, commercial developments and other trafficked areas where strength and long-term reliability are essential.
Manufactured from high-quality ductile iron and certified to BS EN124-2:2015, this cover provides a 1200 x 900mm clear opening with a 100mm deep frame, making it ideal for larger underground chambers requiring regular access.
The hinged double triangular lids allow safer and more manageable opening while helping reduce manual handling when compared with traditional single-piece covers. Its non-rock design ensures stability under repeated traffic loading, helping to minimise movement, noise and long-term wear.
Suitable for Group 4 loading under EN124, the MDD12090DT10 is designed for installation within carriageways and areas regularly trafficked by cars, vans and heavy goods vehicles.
Key Features
- 1200 x 900mm clear opening
- D400 load classification to BS EN124-2:2015
- Heavy-duty ductile iron construction
- Hinged double triangular lids for safer access
- Non-rock design for improved stability
- 100mm deep frame
- Suitable for carriageways and commercial developments
- Quality assured UK engineered product
- Designed for long service life in demanding environments
Typical Applications
- Highway and carriageway installations
- Industrial estates
- Commercial developments
- Distribution centres
- Service yards
- Infrastructure projects
- Utilities access chambers
- Large drainage inspection chambers
- Civil engineering schemes
Delivery Information
- 48-hour dispatch on standard orders
- Delivered via large commercial (articulated) vehicles
- Customer offloading required on site
- Ensure suitable access for HGV delivery at delivery location
- If access is restricted, please advise prior to ordering
All manhole covers, gully covers, and frames are supplied through an external supplier. Delivery charges will be calculated in your cart at checkout. Due to the size and weight of these items, deliveries are typically made using an artic vehicle.
Returns are subject to a restocking fee and haulage (consumer cost), which will be deducted from your refund.
Please review all product specifications before placing an order. If you require assistance selecting the correct product, our team is available on 03338803558Â or info@drainageandcivilsdirect.co.uk to provide professional guidance.
By completing your order, you acknowledge and accept these delivery and return terms.
- Product Code: MDD12090DT10
- Manufacturer: Castings Services
- Load Class: D400
- Standard: BS EN124-2:2015
- Material: Ductile Iron (EN-GJS-500-7)
- Clear Opening: 1200 x 900mm
- Over Frame: 1350 x 1050mm
- Frame Depth: 100mm
- Lid Configuration: Hinged Double Triangular
- Traffic Group: Group 4
- Coating: EN1563 compliant protective coating
- Application: Carriageways and heavy traffic areas
hat is the clear opening size of this manhole cover?
The cover is designed for a 1200 x 900mm clear opening, making it suitable for larger access chambers and drainage installations.
Is this manhole cover hinged?
No. Due to the large 1200 x 900mm opening, this cover is supplied with four removable triangular lid sections rather than hinged lids. The sectional design helps make lifting and removal more manageable.
Is this a double triangular manhole cover?
No. Although smaller covers are commonly supplied as double triangular units, this 1200 x 900mm cover uses four triangular lid sections due to its larger size.
What load class is this cover?
This cover is rated D400 to BS EN 124, making it suitable for areas subject to cars and heavy goods vehicles where a D400 cover is specified.
What is the frame depth?
The frame is 100mm deep.
Can this cover be used in a carriageway?
Yes. As a D400-rated cover, it is intended for applications where D400 loading is required, including suitable carriageway and trafficked areas.
Are the individual lid sections removable?
Yes. The four triangular lid sections are removable for access to the chamber below.
Do I need lifting keys?
Suitable lifting keys should be used to safely remove and replace the individual cover sections. If you require lifting keys with your order, please contact us and we can advise on the appropriate type.
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