Where to buy 10, 15, 20mm rungs/edges?

Anyone know where to purchase rungs/edges in these sizes? figure it'll be cheaper than a hangboard

Maybe not quite what you're looking for, but the tension J2015 5.5in pair, at $50, comes out to a reasonable cost per edge/hold, since it includes jug and 20mm and 15mm edges.

Crimpi climbing makes quality edges, really cheap as well. cool guys working out of their garage in Texas or something.

+1 for the crimpi holds. www.crimpiclimbing.com