R20B Rectangular Headwalls are single piece concrete headwall structures with a separate toe extensions. The R20B Rectangular Headwalls can accommodate twin wall, uPVC or clay pipes up to 750mm or concrete pipes up to 750mm
The R20B Rectangular Headwalls are available with 1300mm back wall heights and there are three depths of toe available in both 300 and 500mm thickness, they are fixed to the Headwall using threaded rod, nuts and washers, and high strength non-shrink grout
All our precast concrete headwalls can be factory fitted with gratings, flap valves, penstocks, handrails and other factory fitted accessories such as baffle blocks and orifice plates.
Openings are cast into the headwalls to suit the pipe diameter and material being used and can be set to a specified invert level. We can also accommodate multiple pipe openings in the back wall or wingwalls.
If you require any assistance or more information please contact us by phone on 01603 488700 or by email email@example.com