78 inches usable fork area.These seem well made, that worked for my purposes. I didn't overload them so it went good.Each fork has two flat plates on the underside. They are welded inside to inside the channel wall. Listing shows these to be 2 inches deep. They but you lose a 1/4 inch because of the underneath plates. So in order for these to work on my forklift I had to cut those flat steel keepers on the bottom off. I may weld some more keepers on, but this time they will be welded on the very bottom, not inside to inside so I can get the full 2 inch depth for my 2 inch forks. I recommend them for the price.