Cover Slabs

Heavy-duty manhole cover slabs made from precast concrete

Marshalls offers a comprehensive range of heavy-duty manhole covers, designed to meet the diverse needs of the construction industry. 

Our covers range from 900mm to 4000mm and comply with BS EN 1917:2002 and/or BS 5911-3:2010 standards. In addition to our standard offerings, we provide a variety of standard specials that, while outside the British and European standards, are regularly used throughout the industry. For unique requirements, we also offer a bespoke range of one-offs.

Available with a standard cover slab access or a bespoke range for specialist projects, all accesses have 75 x 75 corner chamfers, and all concrete cover slabs are available in BIM (Building Information Modelling). All cover slabs are also heavy duty and suitable for use in main roads.

The reinforced concrete biscuits are used to cap a manhole chamber and provide a base for regulating brickwork or seating/adjusting rings prior to installing the manhole cover and frame.

By choosing Marshalls, you benefit from our commitment to quality, innovation, and customer satisfaction. Our products are designed to meet the highest standards and provide reliable, long-lasting solutions for your projects.