Ian Stirling wrote:
I signed up for a cash card, 'trade cash' from Travis Perkins, to get
some basic costings for stuff (for example, is 1m^2 of concrete blocks
cheaper or more expensive than 1m^2 of bricks)...

I note that on one part of the help, it mentions delivery.
Is this only for credit account holders?

no

As I'd like some full sheets of stuff, this would be handy, as I only
have a Nissan Micra.
Any thoughts?

use TP for what you can't get in the car ?