"Chris Hogg" wrote in message
...
On Thu, 3 Mar 2016 09:09:14 -0000, "gareth G4SDW GQRP #3339"
wrote:
About 20 years old, we have a cedar greenhouse where the soil has crept up
on one side over the
lowest board and it is rotting, causing the whole structure to lean over
slightly.
Is there any way of resolving this? I can only think of propping up
the ridge with a pole and a couple of acrojacks to bring it back and take
the weight off the bottom whilst remedial action is applied.

Are you sure it's not just settled on that side due to soft
foundations?

Not when the old wood comes away in handfuls if you do so much as to breathe
on it :-)