Brian Gaff wrote:

Judging by the posts of today, maybe it is!
Now its like this. I have a shed door that used to open fine, but now as it
opens it hits the concrete outside. I think the concrete its built on has
heaved at the back end a bit as we are on clay, tipping it off of level.
Other than trying to jack it up a bit more at the front I'm at a loss. Has
anyone else had this sort of problem. I fear it may mean a new shed in the
end as this one is quite old and in need of tlc, so jacking it up is going
to make it tend to fall to bits!
Brian

How big is the overlap? The simplest is to take a bit of the door, with
an obvious defect when closed. Alternatively attack the concete with an
angle grinder, in grinding mode.

--

Roger Hayter