1st section 56" w x 15" L 2nd section 20" w x 11" L 3rd section 14" w x 22" L hope this helps it is a gradual incline or decline depends on wihich way you want to look at it, lol, 56"- 14" or 14" - 56" , i think you get the jist of what i am saying waverly screen print scotchgarded and says authentic