On Wed, 23 Jan 2008 18:16:08 -0800, twassack wrote:

I am finishing up my detached workshop and want to use a suspended
ceiling system. I have camber trusses that angle up from the wall to a
flat area in the center. The center area is 6 foot across. I have
insulated between the trusses. My question is on the installation of
the grid system. I have searched high and low for information on
suspended ceiling installations where the grid system is not all in the
one plane, but have yet to find anything. I have seen these type of
installation before, so I know it's possible. Any infor pointing me in
the right direction would be appreciated.

There are a couple of solutions to this. You could either make each plane
a separate ceiling with your main T's running at right angles to the
trusses as is the usual practise, complete with trim (takes a certain
amount of skill and experience) and rivet them together before tiling, or
run the main T's in the same direction as the trusses, snipping the spine
of the main T's where the plane changes (at a point where a cross T would
be inserted).

If I were to approach this job, those would be the methods in the
forefront of my mind. I've had 20 years experience of installing various
and sundry suspended ceiling systems and have had to do jobs similar to
this in the past.

If you could take some photos of the trusswork and post them somewhere
online I could give you more detailed suggestions. It would also be
useful to know the dimensions of the job (what are the centre-to-centre
measurements for the trusses, for instance?). Which particular type of
ceiling system do you intend to install? Ordinary 600x600 (2ftx2ft) or
1200x600 (4ftx2ft) lay-in or some other system?

Give me some details and I can help you plan the job. It'll be up to you
do make it look right :-)