Can a riser wall built of wood be made for the 30 and 20? How would the dome be attached?
One of the problems here would be to seal the bottom good to keep out the
many centipedes we are blessed with here.
Yes, a riser wall built of wood can be made for the 30 and 20. It could be attached with “eye” bolts where each of the poles normally comes down to the ground. There are 20 poles on a 30′ and 12 poles on a 20′.