The timber quality we supply is AB Grade Kiln dry Average 18% Moisture content which is equivalent or better than the standard Grade of Class 2/3 given in BS1186-3:1990 section 4 Class 2/3 of which class 3 is traditionally considered adequate for cladding and decking applications. This is considerably a better quality to the 5th Grades, Saw falling S/F I-IV Grades found in most timber merchants.
Knots are a present feature in the product and grade and should not be considered a defect. Timber has natural variation and no 2 boards are the same. Regular cleaning is recommended depending on use and exposure as a minimum once a year to minimize slip risk from the build-up of debris more frequency is recommended for areas with little runoff. It is always advisable to order 10% more to allow for waste due to trim or crosscutting loss. We help with specifications e.g NBS H21 Timber weatherboarding Timber Cladding specifications please contact the support team at Timber Focus to get support in conforming to various specifications and standards e.g BS8605 or BS1186-3 CE Marking to products to BS EN 14915: 2013 These Goods come with the FSC Certification and Timber Focus approval. Other colours and PEFC Certified available on request.
Low-pressure preservative coating – Teknol 1410 with 20% Teknol 1881 Primer
4 sides painted black with Nordica Eko 3330
Teknol 1410 (UC3) Teknos NORDICA EKO 3330-03 BLACK RAL 9005 opaque.