Background information:
Scaffold boards. Today they are even used to build furniture. But the origins of the scaffold plank is the building site. Scaffolds are often necessary to work on the upper parts of outer walls. The scaffolding usually consists of a tubular steel frame, covered with scaffold boards. These boards form the walkways for the workmen.
Scaffold boards, however, are also used for many other construction site related things. Sometimes they are used to make formwork. They are also often placed one behind the other in the sand to serve as ramps for wheelbarrows. Scaffold boards are sometimes laid down to bridge small height differences.
Architectural details:
Scaffolding boards are almost always made of so-called soft woods such as pine. To reduce costs, scaffold boards always have a rough surface (not planed, it is called in jargon). The length varies regularly, but the width is usually about 20 cm.