Making angled MDF wardrobe carcass secure

[potato80]

Hi all.

Am making a wardrobe carcass from 22mm MDF. The top of carcass will be angled to fit the sloping ceiling, as per the picture attached.

What is the best method of securing the angled MDF panels (highlighted by red circles in the picture), so the carcass will remain in place? I'm assuming two mitre joints, with screws?

I'll be securing the whole thing to battens, so am not worried about movement from the wall.

Eventually the wardrobe will have doors, but am just doing the carcass for now.

Thanks

 

[blup]

Perfect Mitring might not be achievable, if not secure mdf to the battens (ensuring they are level and plumb), butting the two panels together and covering with a strip or fillet. If you don't need the back panels, the alternative is using the wall and ceiling to complete the enclosure.

Blup