A straight staircase can be defined as one having a single, straight flight of stairs like a ladder that connects two levels or floors in a building. A straight staircase is one of the oldest and most common types of staircases found in buildings.
Straight stairs are the easiest to construct and have a wide range of advantages. The straight staircase generally has one straight flight of stairs, or sometimes two separated by a landing part way up. As an Architect, I have listed guidelines here under the following headings to help you in the design of straight staircases, :
ADVANTAGES OF STRAIGHT STAIRCASE:
Uninterrupted View: A person walking up or down the stairs has a clear view of the entire flight, so he is at a lower risk of bumping into someone going in the other direction.
Safety: Because a straight staircase offers a clear view of the stairs, there is a lower chance of falls or misplaced steps.
Stair lift: It is easy to accommodate additions like a stair lift that is a necessity for people with mobility issues.
DISADVANTAGES OF STRAIGHT STAIRCASE:
Lack of privacy: Because there is no visual barrier between the two floors connected by a straight staircase, there is often a lack of privacy. This is sometimes awkward in buildings that house multiple families on different floors.
Falls can be Serious: A straight staircase often consists of more treads than a staircase with landings. As a result, a fall from the top of the stairs could result in serious injuries.
Uncomfortable for older people: The lack of a landing can be tiresome for older people who have to climb all the stairs at once.
Requires More Space: Straight staircases require more linear space as compared to curved or platform staircases.
WHAT ARE THE DIFFERENT TYPES OF STRAIGHT STAIRCASES?
TWO-STRINGER STRAIGHT STAIRS:
Or the stairs have “closed” stringers that does not show the profile of the steps. In this case the steps are supported by what looks like two straight, solid beams running at the bottom of the balustrade.
OPEN-RISER STRAIGHT STAIRS:
Nowadays, open stairs which have open treads, that is without risers, are more popular since the form of the staircase can be seen from all angles. See picture below.
CENTRE STRINGER STRAIGHT STAIRS:
Another way of supporting the treads in straight stairs is with one central stringer. These are called centre-stringer stairs (mono-stringer stairs). Normally, the steps in this type of staircase are open so that the central stringer is highlighted. See here.
CANTILEVERED STRAIGHT STAIRS:
In some cases, there is no visible stringer and the steps appear to cantilever out of a wall (see the image below). These are called cantilevered-stringer stairs. In this type, usually there is a concrete or steel stringer embedded within a wall, to which the treads are fixed.
CARPETED STRAIGHT STAIRS:
The stairs shown in this post are just a few examples. Innumerable types are possible with the imaginative use of different materials for the treads, risers, stringers, balusters and railings.
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