One of the pine doors in one in our bedroom doesn't stay open. We have to put something in front of it to stay open. Is there some adjustment I can make to stop the door from closing on it's own. Not a huge deal but the other day one of the dogs got locked in the bedroom upstairs and the A/C was not on, luckily I was just out for a couple of hours but none the less it scared me.

 

Is the door and door frame somewhat off plumb (up and down) from the front (or back) side? I would assume this is the problem, unless you have a spring loaded door closer on your hinge which should be obvious. If the door is off plumb is your wall also out off plumb? If the wall is out of plumb in the same fashion as the door, well you have a more significant problem, and fixing the door will probably require a hack or rehanging it to be plumb, but not flush with your walls, which won't look good.

(Edit - see ubob's post for better solutions)

You should check the hinges, especially if the door's plumb is different from the door frame's. Are the hinges evenly/identically spaced on both the frame and door (the height spacing normally doesn't matter). It might just be an issue that there wasn't a precut area for the hinge and the installer eyeballed it badly, and you just have to move the hinge to stop this problem.

If the door frame is out of plumb and your wall is plumb, you have several possibilities. The correct thing to do would be to cut the door frame off the wall and rehang it so it's plumb. (Edited out sledge solution to make sure it wasn't taken seriously for the smilie impaired).

The easiest solution would probably be to buy and install a door sweep at the bottom, especially if you have carpeting. That should provide enough friction to keep it in place, although you'll have to use more force to close the door.

Hope this helps, but a warning/disclaimer that I'm not a pro, I'm just a home owner who has hung six doors in the last few years that work decently.

 

You gotta' be kidding.

 

You should leave a gap under the door for air circulation.

If you do not want to re-hang the door, install a screen door hook on the wall with the eye in the door to hold the door open.

 

The door is out of plumb - chances are it's just a little and you can adjust it by moving or shiming the hinges. Try loosening the lower hinge (or middle and lower if you have three hinges) on the jamb side of the hinge, place a 1/8" shim between the hinge and the jamb then re-tighten the screws. If that helps, but doesn't fix it completely, you might be able to add a thicker shim, but it will probably just make the door stick when you want it closed. The next thing to try is to take the screws out of the upper hinge, move the hinge away from the center of the jamb (away from the stop), then drill new screw holes and re-attach.
Or... replace the door stop with a magnetic one (they come with a metal button that mounts on the door). I'm sure you can find a source with Google, if your local hardware/big box store doesn't know what you are talking about.
Save your sledgehammer for fixing your computer.

 

Well I did put a smilie after it. Theoretically that could work if someone put way too few fasteners to hold the door in place, but why not just cut the old ones and rehang it with a sufficient amount of attachment.

Realistically, we need more information from the original poster to know how to properly fix the problem. However, I would recommend ubob's solutions over my earlier ones.

 

The last thing you want to do is mess with hinges that were in alignment prior to the door's installation. Ensure the door frame is plumb and square. If not, correct it. Shim it where necessary. The plumbness of the wall is inconsequential, as the door must be plumb and square to keep from racking or opening or closing by itself.

 

This has worked for me. Remove middle hinge pin if it has 3 hinges (top if only has 2), place on flat concrete service, tap in middle of pin with hammer until there is a slight bend in the pin. Reinstall pin in the hinge, there is now a slight tension between the pin and hinge which will keep the door from closing. If still closes repeat on same pin or a second pin to create a little more tension.

 

I've done the same thing as Coyote on commecial doors in office building that would drift open or closed. It works great for me. Just bend it a little at a time until you get the result you're looking for.

 

But, you arent' fixing the problem, only placing a bandaid on a bullet wound. It will keep the door from operating properly, sure, but eventually the brass pin will wear and you will have the same problem. Fix the frame.