Maybe 75lbs? not sure as I've never had it off, it came with the truck. Only thing I could compare it too would be a more modern shell I had on my Tacoma, compared to that, this shell is a little bit thinner material wise, and smaller overall , and no carpet or anything. so I"d say 50lbs on extreme light side and 100 on the heavy side? so estimate would be about 75lbs. it can't be very heavy, I'm sure two people could move it around just fine, and it doesen't seem to make the truck squat, truck still has a slight rake to it with factory springs.