Mixing different thickness blocks

[wiganwarrior]

im about to extend my drive, the old drive has 60mm paving blocks. i have been offered a load of 50mm blocks the same colour. can they be used or will it be a pain

[lutonlagerlout]

its doable but will be a proper pain
better to use like with like
LLL

[sy76uk]

I agree with LLL but I'd be more concerned about matching the colours. Even if they're the same type of block from the same manufacturer, there can still be a difference.

[Tony McC]

Extend? If this can be made into a discrete area, where you, f'rinstance, separate the existing from the new with a break band of contrasting blocks, setts, edgings or summat, then any colour difference is mitigated and there's no installation problem of mixing 50s with 60s.

It's if you try to mix the old and new that you'll have installation problems, and if you lay the new directly against the old, there's likely to be a noticeable difference in colour and texture.

[Colin James]

I am thinking of doing something similar. I just can't get the old B&Q blocks at all, never mind the same colour.
I was planning on layin a course of black pavers, 50mm directly against the existing 60mm, on sand, to create a visual break, and the continuing with new design 50mm pavers.
Will this be stable enough or do I need to create a hard edge between the different thickness?

Regards,
Colin.

[Tony McC]

As long as the new area is fully retained at free edges, it's not essential to establish that break band on concrete, but it would do no real harm if you did so.

[Colin James]

Thank you for that.

I am not sure what I'll do but now I feel I have options.

Regards,
Colin.