Thanks both. And @Klaxon - that was the diagramme I was thinking of!
After 18 months of campaigning by cyclists at Melville Bridge Club on Pinkhill we are getting some racks to place 6 old wheel benders (3 of which are non functioning).
(I've not been involved in commissioning the work, but as one of the chief campaigners my thoughts been sought from time to time! Might be too late to influence this final stage tho.)
The car park has been widened to allow more space for 2 disabled parking spaces, and to provide a better location for new cycle racks (we won't have to squeeze between a car and overgrown wet bush any more!)
A toast rack with five Sheffield racks has been ordered, and is arriving any day.
All this is progress! But the car park changes and cementing work has already been done, and the builders will be asked to bolt the toast rack into the cement "monblock".
I wondered if this was best way of installing, or whether better cementing them in. (Might be too late for the latter.)
It is on private property though rather than public space. Bikes may very occasionally be left overnight, but generally the building is in use while bikes are parked outside.
Racks will be more secure and friendlier than the old wheel benders.
Given the expense the club has gone to in order to install new racks I'd like to ensure they are properly installed, so it is a real win-win for the club and all its members who cycle!