Room dimensions query

[bluedevil]

I am about to construct my house with dedicated room for HT. Ceiling height is 10 feet..

Is 10x17 is ideal for a 7.2.4 or 9.2.4 Atmos HT setup?

What would be an ideal room length*breadth dimensions for a room with 10 feet ceiling.

Is 10*17*10 ok. If not Kindly guide. Thanks