Should take 5-10 minutes to assemble.
Whether you get tabletop or the floor style depends on the kit you order. See below for details:
Tabletop fits 12 team Medium and 12 team Jumbo (jumbo is bigger & costs more)
Floor style fits 16-team jumbo, elephant & all custom and reusable boards.
FYI, tension stands are available only with banner boards and reusable draft boards.