Closed Rise, Closed String Stairs
This is the most common form of staircase due to appearance and price. It has a closed rise that allows you to build cupboards underneath for extra storage or perhaps a wine rack for the budding connoisseur.

Closed Rise, Cut String Stairs
There are many different types of cut string – closed rise, open rise & concealed cut. They all allow the tread and risers shape to be seen when viewed from a side angle profile.

Continuous Curved Rail
This is a handrail that is not impeded by a post at the end of a flight of stair. This means that the handrail continues down the staircase where usually a turn or a landing is in place. A continuous curved rail gives you the benefit of allowing your hand never to leave contact with the handrail down the full flight of the stair.

Mono String Stairs
Its name says it all … one stringer down the centre of the staircase and can only be made from timber or steel. A modern and contemporary style, the mono string is a more recent addition to staircase design than its counterparts.

Open Rise, Closed String Stairs
Designed to let light in, open rise stairs give a room the impression of being more open and larger in size without the stair being obtrusive.

External Stairs
Typically made from treated pine or hardwood timbers such as Merbau and Blackbutt. Generally open rise rather than closed rise to prevent excess moisture and water pooling on treads. It is advisable for each tread to be designed in two-part to avoid timber bowing.

Steel and Stainless Steel Stairs
Widely available and popular design choice for either internal or external stairs. Steel stringers are more streamline than timber stringers, therefore suitable for the space conscious. A higher expense than timber, steel/stainless steel is more durable and is needed for strength in some designs.