Ark basketball instructions:

(2x) 4 or 8 double doorframes,3 fences,1 wall,and 1 penguin,dodo,snail,ect.

(2x)Build the doorframes in a 1by1 square position ,(extendable by hight),put a wall on top of one and the fences on the rest of them

And congratulations,you have made basketball in ark