The website lists the dimensions as 35.5" High and 44" Long. The actual dimensions were approx. 26" High and 36" Long. It was also very flimsy. Was able to find a less expensive screen that was larger and much more substantial.
This screen is a very low quality unit. I guess I should have known better, considering the price. One of the cross pieces fell off in the packaging as it was not welded properly. Be aware that the measurements reflect the actual size of the screen flat open. It is not the size of the firebox opening. So if you have a 36" opening, this will be too narrow when folded enough to stand, to cover the opening. It is a nice design, just not a very well built product.