Gradient rise Dimensions, stringer profile WUC Childproof Fixing and bracing Single flight staircases Multi-flight staircases Stair treads Landings Railing infills Fire resistance rating R30
In order for a staircase to be comfortable to walk on, a certain relationship between the incline angle, the rise and the tread width is required. Preferably the staircase's gradient should be between 30° and 45°; however, the available space is frequently limited making it impossible to attain the ideal gradient.
From the table, you can read off the suitable rise and tread width for a given staircase incline.
If you don't know the staircase angle, but, on the other hand, know the projection, you can divide the projection (L) by the staircase height (H), and look up the nearest figure to the right in the table.
Projection (L) = 3500 mm
Staircase height (H) = 2500 mm
L/H = 3500/2500 = 1.4, which gives the staircase angle 35°
|Staircase angle||Suitable riser||Suitable tread width||Relationship projection/staircase height*|
Dimensions, stringer profile WUC
The WUC profile is manufactured from 3, 4 or 5 mm sheet steel at heights of 120 and 170 mm. For other load cases, contact Weland.
Childproof means that none of the openings in the staircase are permitted to be larger than 100 mm up to a railing height of 800 mm.
Fixing and bracing
Straight flight staircases have different fixing and bracing alternatives depending on the size of the staircase. In the case of small staircases, fixing angles may be sufficient. Larger staircases may need both support beams and brackets.
We help you with the right fixing and bracing.
Single flight staircases
Single flight staircases from a few steps to an entire staircase up to the next storey and step-off. The staircase does not turn with a turning landing. Single flight staircases can be produced in several different versions. Below, there are three different examples.
Multi-flight staircases are staircases linked together with turning landings. This allows very tall staircases to be made.
Weland offers various types of standard landings. The landings are available in several versions and materials. Any design of landing and turning landing can be made to order. The landing can also be extended to make a platform/balcony.
Landing, step-off straight forwards
Variant of square landing, where the staircase runs straight up to a door or floor joists.
Landing, step-off to the side
Variant of square landing, where the staircase runs at the side up to a door or floor joists.
Landing, step-off with widened landing
Variant of square landing, where the staircase runs up to a platform.
We offer perforated sheet metal with a choice of hole patterns as standard.
Our most common patterns:
- ø15, square pattern c/c 40
- 15x15, square pattern c/c 40
- ø20, square pattern c/c 50
- 20x20, square pattern c/c 50
- ø15, triangular pattern c/c 50
- ø20, triangular pattern c/c 60
Other options are available.