sorry if its a bump, mine was prob like a 4 stair drop. i tried like an 8 or 9 but it was the hieght of a 6 and the length of a 11. it was a wood runup that was bumpy and super short and we put a landing on the steps because the was a gap and a drop between the runup and the stairs and it made it super hard to even make it onto the stairs.