The Birthday Cake Combo is for ages 12 and younger and holds 10-12 kids at a time. This unit measures 26’ Wide x 16’ Deep x 18’ High. With the set up of every inflatable we ask for 3ft of extra space around the outside, so for this item we would need a 29’x19’x21′ area for set up. The Birthday Cake bouncy castle offers both a bouncy area and slide. This bounce house slide combo is a little bigger than most so there is more area to jump in the “birthday cake” than most inflatables of this theme. This unit has a little bigger than a 15×15 Covered bouncy area AND a Slide. This is a heavy bouncer- A minimum of 42″ wide is needed to access set up location.