Production process
Wooden stairs
There are different types of wooden staircases. There are, for example, beam staircases, where the steps rest on a beam that usually runs in the middle, and stringboard staircases, where the steps are held by the laterally running stringboards or stringers. The steps are inserted into corresponding cut-outs in the stringers, one speaks of a mortised stringer staircase. The steps are glued and/or screwed to the stringers. If necessary, the steps are connected with risers in between. In addition to the steps and stringers, the railing of a wooden staircase is often made of the same material.
Today the production of wooden stairs with CNC machines is widespread. Due to the workpiece geometry, large machining centres with 5-axis technology are used, which require a larger investment. The respective manufacturers are often specialised in staircase construction. Alternatively, wooden stairs can be produced by traditional methods with hand machines and conventional standard machines without CNC control.
Source product
Most wooden stairs are made of solid wood with a thickness of several centimetres. Often a firm hardwood such as beech, maple or oak is used. The raw material for this is dried lumber in the form of boards or planks. The blanks for the steps and stair stringers are glued individually from lamella strips, which optimises the material yield and creates an attractive appearance.
If you want to avoid the time-consuming gluing process, you can alternatively use finished solid wood panels that are available in stores. This procedure causes a higher waste and aesthetic compromises. This procedure involves a higher waste and aesthetic compromises.
In order to save precious solid wood, specialized manufacturers also use a multi-layer structure of different materials for the steps: The visible surfaces consist of thin solid wood, while a wood-based material is used for the core, for example plywood or fibreboard.
Overview of the different manufacturing variants
Production approach
Production approach
Link list of all production steps
- Applying glue
- CNC machining
- Calibrating and pre-sanding
- Coating
- Cutting out steps and stringers
- Cutting planks to length
- Drilling
- Four-sided planing
- Installation
- Packaging, transportation
- Pre-formatting
- Pressing
- Reworking
- Ripping into slats
- Sanding
- Sorting, intermediate storage, air conditioning
- mortising grooves
Necessary peripheral devices for Wooden stairs7
Briquetting presses
E.g. used in:Carcass furniture, Windows, Wooden stairs, Mass Timber
Chips and dust extraction systems (including filters)
E.g. used in:Windows, Wooden stairs, Mass Timber
Conveyors for sawn timber (roller conveyors / tracks, cross-transfer units, etc.)
E.g. used in:Wooden stairs, Mass Timber
Extraction systems
E.g. used in:Carcass furniture, Windows, Flooring, Wooden stairs
Fire and spark extinguishing systems
E.g. used in:Carcass furniture, Windows, Flooring, Wooden stairs, Mass Timber, Wood-based Panels
Machines and equipment for manufacturing solid timber boards
E.g. used in:Wooden stairs
Stationary hoggers
E.g. used in:Windows, Wooden stairs, Mass Timber
