Making steps - Radial kerb edgings

[nickbev]

we are having our driveway relaid with imprinted concrete, we need two steps to lead to the front door due to the height. we have chosen key kerbs to outline the drive and steps. The workmen say they cannot create two radial steps one bigger than the other without expanding the 1st step to a radius of 5 foot or more, i have seen steps edged in keykerbs before and it has been managed, can anyone tell me how it is done, help they are coming back tommorrow. Currently both steps are different shapes and they look a mess.

[ABILITY]

You need to use the radial key block unit to allow for tighter curves without openng up the joints betwwen the blocks too much.
Think the radial unit will give alot tighter radius than 5'
Alternative is to cut standard blocks to a taper, but a bit of a pig if you have many to do.

[nickbev]

Thanks, I have been playing about with the standard and radial it seems that i can follow the curvature of the first radial step by placing the 2nd step blocks in a sequence of 3 radial then one standard and so on. The trouble is i ran out of blocks so was unable to see the end result.
will try again in daylight it might be a case of plan B - not got one yet.

[Tony McC]

Unless the radius is faster than 1200mm, there's no need to use the over-priced radial units. I always think these semi-circular steps look far better with mortared joints, and prefer not to use the radial units at all, as far as possible.