Tim S wrote:
John Rumm wibbled:

A bit like:

http://wiki.diyfaq.org.uk/index.php?...avePacking.jpg


This is also a good suggestion - I hadn't thought of doing that. I'll see
how the plaster shaving goes first.

I might need this method as unfortunately 3 segments of my nice straight
flat frames cupped a bit due to large amounts of wet plaster (wish I'd
anticipated that and waterproofed the back!).

It's not much - a few mm at most, not enough to really notice or mess up
door fitting, but it's introduced an angle on the edges, where the
architrave will go. Planing that in situ is possible but fiddly.

I'll have a look in B&Q at the hardwood trim shelf - 5mm x 10mm would do the
job nicely if there's some wood to match mine...

Cheers

Tim

Architrave normally covers the edge of the frame, so that doesn't have
to be dead flat. I usually pin the 3 lengths to the frame, get the
mitres lined up properly (this stands out like a sore thumb if it isn't
right), then do whatever filling is required (this nobody is ever going
to notice).