A Fat Quarter measures 18 x 22 inches (longer if the bolt width is greater)
A skinny Fat Quarter is 9 x 44 inch or width of fabric (Please message if you would like your quarter cut this way)
Half metre is 20 x 44 inches or WOF,
When more than 1 is ordered it is cut in one piece,
so 2 quantity of Fat quarters gives you 18 x 44 inches or WOF, 3 would give you 27 x 44 inch, 4 gives you 1 yard by WOF.
2 quantity of the half metres gives you 1m by WOF.
Panels are usually 23 inch by the width of the fabric but some are smaller and some bigger up to 1 yard. The product decription will specify which.
Charm Packs contain pre cut squares 5 x 5inches in size and jelly rolls are strips 2.5 inches wide by the WOF.