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PRODUCTS

320 STRUCTURAL SOFTWOOD (STRENGTH CLASS NOT SPECIFIED): generally
• Species and origin: To match existing.
• Grading standard: To the appropriate standard or rules for the specified grade and
so marked.
- Grade: site specific.
• Treatment: to NBS section Z12 and Wood Protection Association Commodity
Specification.
• Moisture content (maximum) at time of installation: 20%.
• Other requirements: Wane not permitted.

350 UNGRADED SOFTWOOD generally
• Quality of timber: Free from decay, insect attack (except pinhole borers) and with
no knots wider than half the width of the section.
• Surface finish: Sawn.
• Treatment: site specific.

360 SOFTWOOD FOR JOINERY REPAIRS generally
• Species: site specific.
• Quality: Generally to BS EN 942; free from decay and insect attack (except pinhole
borers).
- Appearance class: Class J20.
• Treatment: site specific.
• Moisture content on delivery: 9-13%.

370 HARDWOOD FOR JOINERY REPAIRS generally
• Species: site specific.
• Quality: Generally to BS EN 942; free from decay and insect attack (except pinhole
borers).
- Appearance class: Class J20.
• Treatment: site specific.
• Moisture content on delivery: 9-13%.

380 STRUCTURAL PLYWOOD generally
• Standard: To the relevant national standards and quality control procedures
specified in BS 5268-2, and so marked.
• Type: Contractor's choice where concealed.
• Grade: as BS 5268-2.
• Nominal thickness/ number of plies: as BS 5268-2.
• Finish: Sanded.
• Treatment: site specific.

420 STAINLESS STEEL SECTIONS AND PLATES generally
• Standard: To BS EN 10088.
• Grade: site specific.
• Source: Obtain steel from a source accredited to a national or internationally
accepted quality standard.

RotF generic (intermediate) NBS 2014 6118-AEW-XX-XX-NBS-A-01