There are many styles of curtain headings:
Pencil Pleat – Single pleat curtains have just a single pleat, their simplicity has gained them more popularity in recent years. They can be the best option for many windows.
Twin Pleat – Sets of two folds are sewn into the header of the fabric at regular intervals in a neat row of ‘V’s. This double pleat uses more fabric than a single pinch pleat, creating a fuller double thickness, more sumptuous curtain with plenty of body.
Pinch Pleat – Sometimes known as triple pinch pleat, curtains are a traditional curtain heading used to create a classic finish. Often triple pleat curtains make a great choice for formal areas of the home like drawing rooms and dining rooms.
Inverted Pleat – An inverted pleat has two flat folded edges that are towards the center point on the outside, which form a box pleat on the inside.
French Pleat curtains have no bunching or pleats along the top. It is created through combining a specially designed heading tape and specific track or tracked pole to get a soft and simple continuous pleat effect. Ideal for living spaces with large windows or doors, a French header stacks back neatly and is well known for its contemporary look.
Rod Pocket – Is the combination of a Wave, or Surf, heading style hung from a standard pole or track. The way these curtains hang is a lot more natural but is best suited to smaller windows.
Grommet curtains are often referred to as ring top curtains, it is a modern heading that is hung on 19mm metal curtain poles. The pole is thread through the eyelets without the need for any sort of track or hooks. Similar to a wave/surf heading, eyelet curtains stack neatly for a minimal look.
Flat Header They are less convenient in bedrooms as they will allow more light to seep from above.
Goblet – Much like twin pleating, goblet curtain headings take a lot of extra material. The goblin pleat is sewn in and is fixed, giving it the form of a luxury tailored look
Tab Tops – The top of the curtain is with a row of fabric tabs (loops) at regular intervals to be hung to the rod, thus the name. This is the modern, relaxed, and less formal headings.