 kind of heavy they get used a lot you in and out in and out and they just get out of adjustment um but naturally it's just nothing wrong with the door it just gets out of adjustment so generally speaking you can look for an adjustment screw on the bottom of of the sliding part of the patio door there should be in most cases there's a little plastic plug there you pop the plug off and there's usually a big phillips screw inside there and that that lowers and raises uh the patio door so