John wrote:
I do many things DIY but joinery isn't one of them so I got a joiner in to
fit two sets of bi-fold doors for us, which he fitted by hinging (sp?) the
doors on the side just as you would do with any other door.

I have to admit that I didn't realize that this was "wrong" as we've never
had bi-fold doors before but when I went into a neighbour's house recently,
their bi-fold doors ran in a track along the top of the opening and a sort
of pivot at the top and bottom of the door at the "fixed" side (iyswim). My
wife then rang a friend and found out that hers also ran in a track.

snip

This is very interesting, as finished installing bi-fold doors (Wickes
Edwardian) a couple of hours ago and am completely dissatisfied with
the result and consequently am wondering about how to hang them in the
same way as your joiner did first time!

Snags with the pivot fitting are the large gaps all round the frame,
and the doors do not fold flat into the door opening. One of the ideas
behind using bifold was to 'hide' the open doors inside the rather
thick wall the doorway goes through.

Wish I'd looked around more before starting!!

Anyway any ideas about achieving a more satisfactory result would be
most welcome.

If they could be hung so that they normally lie flat in the opening or
could be swung back and fold against the wall outside the room (perhaps
via some sort of double direction 'restaurant' hinge) to leave the full
door frame width clear, then that would be brilliant.