Box-spring
A box-spring (or divan in the UK) is a type of bed base typically consisting of a sturdy wooden frame covered in cloth and containing springs. Usually the box-spring is placed on top of a wooden or metal bedframe which sits on the floor and acts as a brace, except in the UK where the divan is more often fitted with small castors. The box-spring is usually the same size as the much softer mattress which is placed above the box-spring. Working together, the box-spring and mattress (with optional bed frame) make up a bed. It is common to find a box-spring and mattress being used together without the support of a frame underneath, the box spring being mounted directly on casters standing on the floor.
The purpose of the box-spring is threefold:
- to raise the mattress' height, making it easier to get in and out of bed;
- to absorb shock and reduce wear to the mattress; and
- to create a flat and firm structure for the mattress to lie upon.
The first rectangular spring-cushioned wire frames to support mattresses did not have wood rims or cloth covers. These were called bedsprings. More and more box-springs are being made out of wood, then covered in fabrics. Wood makes a better support system for the newer memory foam and latex mattresses. The newest design in box-springs is the folding box spring made of wood or metal, then covered in fabric which can fold in half and can be sent by shipping and courier companies.[1]
With the increasing height of mattresses, manufacturers now make box springs in different heights. Standard "high profile" box springs are 9 inches (23 cm) in height, whereas "low profile" box springs are between 5 and 5.5 inches (13 and 14 cm). The difference between the two heights is purely aesthetic and makes no difference in the support provided for the mattress.
Alternatives
Box-spring beds are especially popular in the United States, Canada and Australia.
Alternatively, in Japan, futon mattresses are usually either placed on a bedframe or on the floor, without the use of springs; in Europe, mattresses are usually placed on a slatted base on the bedframe. This lath floor provides suspension, allows the mattress to ventilate, and can be designed to be vertically adjustable in order to elevate the legs and / or the torso.
References
- ↑ "Invention Machine and the Case of the Boxed-Up Box Spring". Xconomy. Retrieved 14 June 2015.
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