This Technical Specification gives definitions and characteristics for Thermally Modified Timber. TMT is used in interior (dry, humid) and exterior conditions.NOTE 1 TMT is usually a semi-finished product; applications are e.g. flooring, panelling, cladding, decking, windows, doors, furniture and other internal and external joinery. Their product standards give requirements and test methods which are to be taken into consideration.NOTE 2 Usage in load bearing applications – reference to relevant EN standards should be made.