Andy Burns expressed precisely :
> It's quite straightforward, with an opener (door or window) you want the
> packers supporting at the bottom and on the hinge side and at the top on
> other side of the opposite diagonal.
>
> <
http://a6windows.co.uk/img/toeing%20and%20heeling.jpg>
>
> the spacers on the other sides are basically to stop it shifting, rather than
> take any weight/pressure.
Thanks for that. Looking at the diagram, there are some entirely black
blocks and some a lighter shade. Are we saying that one spacers, or
only the setting blocks are supposed to be fitted or should it be both,
all 6 blocks?
Our front door (the one under discussion) was fitted by one of the
national companies and they left it with no blocks fitted, just one
dropped loosely in the frame.
I had a local company replace all of the windows and the back door, the
year after the front door was fitted. Having now checked - all of the
windows are fitted with the blocks, but there are none at all on the
back door.