MANHOLE COVERS
C250 vs D400 Manhole Cover: Which Load Class Should Buyers Choose?
What is the difference between C250 and D400 manhole covers?
C250 is commonly used in kerbside and channel areas, while D400 is intended for carriageways and locations exposed to regular road traffic under EN124.
Should buyers always choose D400 instead of C250?
No. The correct class depends on the installation location and traffic loading. Specifying a higher class does not replace proper frame support, bedding and installation.