D400 Ductile Iron Manhole Cover & Frame
Heavy-duty hinged cover for carriageways, with lockable seat and anti-rock design.
- D400 (400 kN)
- BS EN 124-2
FORMA BUILD BUILDING MATERIALS TRADING WLL · SINCE 2023
We are committed to delivering high-quality products and reliable services that meet the highest standards. With a focus on excellence, customer satisfaction, and lasting relationships, we provide trusted building solutions for every project.
Our range
Every cover is cast in ductile iron and tested to BS EN 124. Sizes and load classes to order — send us your chamber sizes.
Heavy-duty hinged cover for carriageways, with lockable seat and anti-rock design.
Beams, columns, channels and angles, cut to length and galvanized for the Gulf climate.
Single-piece rectangular cover with anti-theft hinges, lifting keyholes and a raised anti-skid pattern.
Two-frame cover split into triangular sections that wedge tight under traffic and lift out one piece at a time.
Six-piece triangular cover for long utility and telecom chambers, with a chevron anti-skid surface.
Slotted gully grating on a flanged frame for road and car-park surface water drainage.
BS EN 124 load classes
15 kN test load
Areas used only by pedestrians and pedal cyclists.
125 kN test load
Footways, pedestrian areas, car parks and areas open to light vehicles.
250 kN test load
Kerb-side channels of roads, up to 0.5 m into the carriageway and 0.2 m into the footway.
400 kN test load
Carriageways, hard shoulders and parking areas for all types of road vehicles.
600 kN test load
Areas with very high wheel loads such as docks, loading yards and forklift routes.
900 kN test load
Particularly high wheel loads, such as aircraft pavements.
Why Forma Build
Contractors and consultants choose us because we combine a trader's stock with a fabricator's precision. Every enquiry is reviewed by someone who understands the specification.
About the companyEvery batch ships with mill test certificates, and third-party inspection is available on request.
Direct manufacturer relationships and volume buying keep your project costs in QAR predictable.
Fast-moving lines held in our Doha yard, so you are not waiting on shipping schedules.
Our own fleet delivers in 24–48 hours to Doha, Lusail, Al Wakra, Ras Laffan and Mesaieed.
Engineers who read drawings and BOQs, recommend load classes and prepare submittals.
Non-standard covers, gratings and steelwork fabricated to your shop drawings.
How we work
Receive material inquiries and project requirements.
Confirm product type, specifications, quantities and delivery location.
Submit competitive pricing, confirm terms and receive the purchase order.
Arrange materials and verify compliance with approved specifications.
Coordinate transport, delivery schedules and site access.
Deliver materials to the designated site and confirm receipt.
Our clients
Upload your drawings or BOQ, or simply send us a list on WhatsApp.