Sir jerix, this was how my diy screen(carpenter-made)
was made...
-Blackout cloth 3yards lang..
-Using "3" 1 x 4 x 12 wood...this was made into a 85 x 49 frame
-Then using leftover 3/4" plywood made into triangular shape, placed on the 4 corners of the frame
for added stability.
-Placed the blakout cloth(on the front side) and fixed it by staple gun in an alternate manner keeping
a firm tension on the cloth to remove the creases.
-Then on top of the cloth, placed a 1 x 2 Moulded wood to frame the screen...
-for a final touch...painted the moulding black.
the frame looked exactly like this from the back...