If you want a less formal, modern look to your window treatments then tab tops are the answer. They can be made in any weight of fabric from the finest sheers to heavyweights such as velvet and brocade.
These stylish curtains need to be made at least 1.5 times the width of the window. The stack back width is the combined width of all the tabs.
The tabs are positioned at approximately 20cm (8") intervals across the top of the curtain, with one at each end (6 or 7 tabs per width of fabric). The length and width of the tabs can be adjusted to suit your own preference, however to obtain the best effect, the top of the curtain should cover the top of the window frame.
There are a number of styles of tab top curtain including, button tabs (both lined and unlined), box pleated and gathered which are usually lined.
The instructions below are for simple unlined tab top curtains, this style has both ends of the tabs stitched into the top hem and needs a fullness ratio of at least 1.5. The tabs have a finished width of 3cm (1.25") but this width can be adjusted for your own preference.