To build the structures thus mentioned, the inhabitance of the tell made use of the resources around them. The clay sediment used for their walls and floors was taken from the banks of the river (loess or alluvium) then mixed with straw, a practice coming to the earliest agricultural civilizations.
The kinds of wood implemented in building varied according to the strength needed. Oak was obviously reserved for the weight baring posts, which required strength and flexibility.
The least noble varieties, such as poplar and willow, ash, elm and maple, were used for posts and stake reinforcements inside the walls, along with reeds called phragmites.
For the construction of the crawl space buildings, many varieties of wood were used, notably poplar and willow whose flexural strength is, however, not very large.
Perhaps this explains the recourse to split trunks and the elaborate design of the structure.