wrote:
Could a solution be
simply to miss out the hardboard backing board and cut notches in the
side-walls of the base units to accommodate the pipes? Presumably the
backing board is there to give rigidity rather than load-bearing
strength so perhaps I could use some angle brackets instead in order
to give the base units rigidity?

Or put in a new backing board. Fix some timber strips to the bottom & sides
of the base unit & screw the hardboard on. Hides the pipes but easily
removed for access.


--
Dave
The Medway Handyman
www.medwayhandyman.co.uk
01634 717930
07850 597257