I am trialing a suspended ceiling. I couldn’t get an off the shelf ceiling to work as there was not enough clearance to fit the tiles. I was going to use right angle steel bolted together however the metal shop had run out. They had some aluminium which looked good and I have made the first section in aluminium. The metal marks easily and is more expensive so I am not sure which I will use. The plywood panels started warping within 2 days of buying and so I am going to leave them up to see what happens.
Note to self – do not set fire to your wifes favourite duvet that her mum gave her when she was 21 with the welder!!!