curtains are simple and versatile: to make them, pieces of fabric are hemmed on all four edges and the final rectangular or square piece is hung from curtains poles with clip-on rings or something similar. If pleated, the look is strongly influenced by the fullness of the pleats. Panel Pair Curtains are also known as double panel curtains. They refer to two curtain panels hanging on either side of the window. This is the most common style. Tab top curtains are made with narrow straps, that loop or tie at the top edge and hung from the curtain pole. This curtain style is often designed as two stationary panels at the sides of a window. Grommet curtains are hung by threading the curtain pole through a hole in the top of the fabric. This could be either a cut-out hole with the edges finished by a row of stitching or it could use a grommet to prevent fraying. Sash curtains are used to cover the lower sash of the windows. Rod pocket curtains have a channel sewn into the top of the fabric. A curtain rod is passed through the channel to hang. Thermal or blackout curtains use very tightly woven fabric, usually in multiple layers. They not only block out the light, but can also serve as an acoustic or thermal dampener. Curtain liners are used to protect actual curtains from getting wet. Eyelet Curtains are attached to a pole (usually metal). A number of circular holes are cut into near the top of the curtain and edged with a metal ring (eyelet). The pole is then threaded through these holes, with approx. 4cm of fabric showing above the pole. Pencil Pleat Curtains are formed by pulling cords attached to "rufflette tape" to gather the fabric into pleats that look like a row of pencils. These curtains are then hung under a pole or attached to a curtain track with plastic hooks fitted in every 4th "pocket" along the rufflette heading. Typically a 1.5 m width of fabric will be gathered to 750mm width. Rufflette Tape was originally developed from tape which held ammunition (bullets) for semi automatic machine guns. Pinch Pleat Curtains are usually formed by machine stitching together either 2 or 3 pleats, then leaving a gap of typically 10cm before repeating the pleating process. These curtains are then hung under a curtain pole using either metal