Types of Construction

We know that buying a staircase is not something that happens very often so we strive to make sure our customers get exactly what they envisage. This is why we manufacture a variety of different types of construction stairs which can be seen and easily understood here.

Standard Construction

The Standard Construction is the most common type of staircase. It has a full closed string on both sides of the Tread & Riser and has nosings that project 17mm from the face of the riser. It is manufactured using wedges and glue blocks to the back of the stairs meaning that the underside will need to be covered, most commonly done with plasterboard. This is the most economical type of construction.

Cut String Construction

The Cut String Constructed stairs are for customers looking for more of a traditional staircase. The Strings are cut (on the open side of the stairs) so that the treads sit on top of the string, the risers are hand mitred into the string and the balusters sit on the tread, rather than on the string. They are available with or without brackets. The brackets tend to give the staircase more or a tradional look - to see the brackets we offer, please look under our Interchangeable Components page.

Again, this type of construction requires us to use glue blocks and wedges, therefore the underside will need to be covered.  We can, however, offer an open back option if requested.

Open Tread Construction

Open Tread staircases, commonly referred to as 'Open Riser' staircases, is an ideal choice for someone who wants more light to travel through the room as the gaps in the risers allows light to pass through the stairs. We also offer an option where a horizontal steel bar goes inbetween the treads, in replacement of the half riser. As we use all traditional joinery methods on this type of construction, it of course does not require the back to be covered.

Nosingless Construction

Nosingless staircases are most commonly used in commercial and communal buildings to comply with Part M building regulations. Having the stairs without the 17mm projection of the nosings, means that the front edge of the tread finishes flush with the face of the riser. Although nosingless construction stairs are primarily used in commercial and communal dwellings, some clients do prefer the look and choose to have it in their homes.

Open Back Construction

An Open Back stair is manufactured without the use of wedges and glue-blocks, similar to an Open Tread staircase - the treads and risers are screwed through the side of the strings and then covered with tapered pellets in the same material as the string. These pellets are then smoothed down to finish flush with the string.

Space Saver / Paddle Construction

Space Saver or Paddle Construction staircases are often used as loft stairs. You may also use this type of construction if there is not enough space for a stair that satisfies and complies to current building regulations. Although these stairs are a lot steeper than normal (55 degrees), the benefit compared to having a ladder is that there is much more of a tread to stand on and it is a lot more aesthetically pleasing.

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