What is the NF DTU 31.2 standard for wood construction used for?

Defining the rules for the construction of wooden houses, the NF DTU 31.2 standard applies to all structures whose load-bearing structure is made of wood.

Standard"NF-DTU-31.2-and-NF-P21-204"

Timber constructions: focus on the NF DTU 31.2 standard

Updated several times by amendment (NF P 21-204), the NF DTU 31.2 standard constitutes the construction benchmark for wooden buildings. Intended for construction professionals, it defines all the rules to be followed when carrying out a work whose load-bearing elements are made of wood.

What are the NF DTU 31.2 and NF P 21-204 standards ? 

Updated for the last time in 2019, the NF DTU 31.2 standard is the reference document for the construction of houses and buildings with wooden frames. This Unified Technical Document (DTU), drawn up under the control of the French Standardization Association (AFNOR), is intended for all construction industry players involved in the creation of wooden buildings :

What constructions doex NF DTU 31.2 apply to ?

The NF DTU 31.2 standard applies to any structure or part of a structure whose main load-bearing structure is made of wood. More precisely, it concerns three modes of implementation involving wooden elements:

Consequently, this benchmark can target a large typology of buildings, including :

On the other hand, some wooden constructions fall outside the scope of NF DTU 31.2. This is particularly the case for wooden foundation walls and facade elements resting on a masonry or steel supporting structure.

What does the NF DTU 31.2 standard define?

To provide a benchmark for construction professionals, the NF DTU 31.2 standard lists all the requirements that wooden constructions must meet, for each of their facets.