A curved stair lift is a piece of home medical equipment that is used to bring patient or physical disable person up and down the stairs. Curved stairlifts are not mandatory for your home; these are basically needed for hospital or in different offices. Though it is must if your family has a member with physical disability, if you have enough budget then you should go for it too. Because a physical disable guest can come anytime in your home. We can say these wheelchair lifts too, and for healthy living of physical disable persons these are really needed.Stair lifts consist of a carriage which is raise on a railing along the stair tracks to allow the device to move up and down the stairs at the touch of a switch. It can be powered by electricity supply or any rechargeable battery. There are mainly two types of stair lift. Straight stair lifts and curved stair lifts. For many, straight stair lifts offer an outstanding system to increase safety, without giving up freedom. On the other hand, not everybody has a straight staircase, so it might be essential to think using a lift that is curved. A curved lift costing is lots more than straight staircase. This is because curved lifts must be manual fit to the curve of your stairs. The cost of the stair would depend on how complex the curves are as well as the height of the stairs.A small curved stair lift easily can cost more than 15,000 dollar. If you are really dedicated to setup a stair lift then some cases it is in fact possible to set up two straight stair lifts in place of one curve stair lift. This easily can save great amounts of cash, but is only likely on some dedicated types of staircases.As well curved stair lift has a very little or no resale worth, because every staircase have more or less different. So before purchase a curved stair lift you should think twice.