I have a wooden front door which seems to have warped, possibly more so in the current weather. Facing the door from the outside, the lock is on the right-hand side and gap can be seen in the top right corner - not enough to see into the hall but a noticeable gap nonetheless. There is also a lesser gap at the bottom of the door. Both the bottom and top of the door on the reverse side (i.e. internally) are not flush with the frame. I have to push the door from the inside for it to latch and pull from the outside. As a result, there are signs of cracking on the caulking where the frame meets the walls. There appears to be some strain on the door lock too when the door is shut. I have tightened some loose screws on the hinges in case it has dropped. The hinges seem to have had cardboard placed between them and the door frame, not sure what that is an indication of. Can anyone judge from what I have written whether the door is likely to be warped and that I need to replace the door, as I have no experience of this though have done a few searches in the forums which leads me to believe it is warped and will need to be replaced. Thanks in advance.