Curtains can be ready made or custom made. Ready made curtains are probably the most convenient as they simply need to be hung from a track rail or pole with little trouble and often they have linings fitted and many also come with accessories like matching tie-backs and cushion covers for a completely coordinated look. They are available in a variety of sizes that are suitable for most standard window measurements and usually are offered in different widths from 44inches, 46 inches, 54 inches and 90 inches. The drop available, the length of the curtain, usually comes in three sizes, 54 inches, 72 inches and 90 inches.
Eyelet top curtains are simply threaded on to a pole or rail through the eyelets and require no hooks. This makes them very easy to remove for laundering, as there are no fussy or awkward little fittings to have to get rid of before you either wash or dry-clean your curtains. The distance between the eyelets determines the natural drape as they fall and some people who prefer not to have the curtains completely flat when they are drawn, order a broader width so that the concertina folds are still apparent even when the curtains have been pulled together though consideration must be given to the extra bulk of fabric when they are pulled back if you choose to do this.
Tab top curtains behave in much the same way as eyelet top curtains; the loop of material at the top of the curtain may be stitched to the main body of the curtain in narrow or broad bands or they may be ribbon-like tie tops for lighter weight sheer window coverings that can allow a pole to slip through. Curtains with pencil pleats have a heading tape that can be drawn as tightly or as loosely as you desire for the required breadth of pleat if you need to make minor adjustments to fit your track; the tighter the tape is drawn the narrower the pleat will be. After securing the drawstrings on the heading tape the curtains will maintain the pleats when drawn closed.
Some people only wish to dress their windows for ornamental purposes and opt for a simple wrap pelmet effect where a length of fabric is draped over a pole so that it drops decoratively from it, dipping down at the center with the tails hanging either side of the window. There is no intention to use this dressing as a functional curtain though a wrap pelmet may often be combined with traditional curtains for an elegant finish.
As well as the ornamental effect of the curtains they may require a lining if they do not possess a special thermal or blackout finish on the backing. Some fabrics are just not suitable for this type of treatment and they require lining curtains to prevent bleaching from sunlight and to add insulation or light blocking properties. Even heavy fabrics can become sun-bleached and lose their color if a lining curtain does not protect them.