In reply to samben6:
If you’re good with tools and have the right ones- drill, jig saw, router and access to decent wood; not plywood or soft pine, then you can make your own board. The beastmaker templates are available online or you can just make your own design. I would suggest that you use 3 20mm boards and then glue and screw them together. During MCO here in Malaysia, I kept myself busy and covered in sawdust making hangboards for friends. PM me if you want more details