The shroud I made was initially too long. The shroud was made from two widths of Porter's better grade nylon darkroom cloth at a length of 4 yards.
The width of the material is 54" and sewing two widths together gave a piece approximately 3 yards wide x 4 yards long (9'x12'). The length was then sewn into a tube with a circumference of 12'. The perimeter of the darkbox is about 100" so there is a bit of extra fabric there. I'm 5' 8" and also needed to trim some of the shroud from the bottom near the ground. I think there is about 18" extra there. With the exception of cutting off a few narrow strips of materials to be glued on the sewed seams, I'd recommend trimming the shroud after it is attached to the box since the rear portion of the shroud (connected to the box top) needs to be longer than the front (connected to the box bottom).
You do want the tube circumference big to be able to work in comfortably. The fabric is tacked to the back wall starting at the bottom (I put the seam to the right corner), then up the sides and finally at the top. You need to put a couple pleats on the top to accommodate the excess fabric which allows for greater freedom of movement outside the box.
Last edited by smieglitz; 11-23-2007 at 08:50 PM. Click to view previous post history.