NEN EN 14250 : 2010

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Material requirements
  4.1 Timber
       4.1.1 Grading
       4.1.2 Finger jointed timber
       4.1.3 Resistance to biological organisms
  4.2 Punched metal plate fasteners
5 Product requirements
  5.1 Strength and stiffness
  5.2 Reaction to fire
  5.3 Structural members
       5.3.1 Timber sizes
       5.3.2 Wane
       5.3.3 Joint gaps
       5.3.4 Moisture content
       5.3.5 Dimensional accuracy
       5.3.6 Camber
  5.4 Joints
       5.4.1 Live knots
       5.4.2 Dead knots or fissures
       5.4.3 Fastener positioning
       5.4.4 Fastener embedment
       5.4.5 Protruding fasteners
6 Product documents
7 Evaluation of conformity
  7.1 General
  7.2 Initial type testing and assessment
  7.3 Factory production control
       7.3.1 General
       7.3.2 Daily control
       7.3.3 Weekly control
       7.3.4 Regular control
       7.3.5 Records
8 Marking
Annex ZA (informative) Clauses of this European standard
                       addressing the provisions of the EU
                       Constructions Products Directive
  ZA.1 Scope and relevant characteristics
  ZA.2 Procedure for attestation of conformity of
       prefabricated structural members assembled
       with punched metal plate fasteners
       ZA.2.1 System of attestation of conformity
       ZA.2.2 Certificate and Declaration of conformity
  ZA.3 CE marking and labelling
Bibliography

Defines material, product and documentation requirements for prefabricated structural members (e.g. trusses for roofs, walls and floors, frames, composite beams and girders) for use in buildings made from solid structural timber according to EN 14081-1 with or without finger joints assembled with punched metal plate fasteners.