A trap is a set of steps which are leading from one floor of a building to another, usually inside the building.

The types of trap are broadly based on the shape and design trap. There are a number of different types of trap that we can build or add railings to. Here is a list describing some of the most popular trap types:

  • L Shaped Trap (sometimes called quarter turn trap): The L shaped trap is a variation of the straight trap with a bend in some portion of the trap. This bend is generally achieved by adding a landing at the bend transition point. The bend is often 90°, however it does not have to be. If the landing is closer to the top or bottom of the trap, it is sometimes referred to as a long L trap. The various advantages of L shaped trap include the following:
  1. L trap can be more visually interesting.
  2. They provide a visual barrier between floors so they can add some privacy.
  3. L trap can somewhat help with sound transmission between floors if the trap are contained within walls.
  4. L trap are safer than straight trap as the central landing reduces the number of treads one could fall in a given flight.
  5. The landing in L shaped trap can provide a place to stop and rest while ascending.
  6. L shaped trap can be located in a corner of a room if this works better for your design.
  • U Shaped Trap (sometimes called half turn trap or switchback trap): Basically U shaped trap are two parallel flights of straight trap joined by a landing that requires 180° turn in the walk line. If a third flight is inserted into the middle of the trap, it would become a double L trap or quarter landing. The major advantages of U shaped trap are:
  1. These trap can be easier to fit into an architectural plan.
  2. U shaped trap offer some architectural interest.
  3. The landings in U shaped trap can offer a resting point part way up the trap.
  • Curved trap: These trap add elegance to home and business. For this reason, they are almost always located at the entry where it makes the best first impression. Curved trap, like spiral trap are helical. However, curved trap tend to be on a much larger radius and generally do not make a full circle. The advantages of curved trap include the following:
  1. These are often very elegant and traditional but this type of design trap can equally be adapted to contemporary designs.
  2. Curved trap are relatively easy to walk up.