Mine is 17.5" tall, 31" wide, and 16" deep. All measurements are exterior and taken from the widest point to the widest point. For instance the depth includes the hinge on the back and the slight bulge on the front. The width includes the carry handles on each side. It is worth noting that my SS barb protrudes beyond the width I stated making my width 33". Hope this helps you. Let me know if you need anything else.
I note that my dimensions aren't too different than those stated on Amazon which are: 31.5 x 15.8 x 17.7 inches