Quality of Internal Doors

The Quality Control Association for Internal Doors made from Wood and Wood-based Panels publishes the hereinafter mentioned Rules for Quality Control and Testing, which can be used by the door manufacturers in order to organize independent Quality Control Procedures. These are monitored by the Quality Control Association with the help of independent Quality Control Inspectors.

The following quality control guidelines are available at present:

RAL-RG 426, T I, Internal Doors made from Wood and Wood-Based Panels:
Part I: Door leaves made from wood and wood-based panels

RAL-RG 426, T II, Internal Doors made from Wood and Wood-Based Panels:
Part II: Door frames made from wood and wood-based panels

RAL-RG 426, T III, Internal Doors made from Wood and Wood-Based Panels:
Part III: Doors for rooms with prevailing damp or wet conditions