In reply to Tekton23:
> I am just starting my home wall for some training. I have a few holds but can not get any clear info about which fixings I should use. I know the principle and am going to use expansion anchors with no resin as they are solid bricks. However I need to know exact dimensions of the bolts, drill bit size and the type of expansion anchor. I though I needed M10's but just went to the local shop and they are far too big.
>
See
http://www.indoor-rock.co.uk/info/howto.html
Most climbing holds in the UK take an M10 countersunk bolt and corresponding T nut. When you say the M10 bolts from your local shop are too big, do you mean for the holds that you have? The hole should be drilled with a 12mm masonry bit. You should be fine with regular expansion anchors
> ps....anyone put a rubber backer on each hold when bolting into brickwork?
A rubber bcking helps to prevent the hold from slipping when it has been attached to masonry. A rubber-backing will however add something like 25% to the cost of your holds!