Do I need timber noggings when boarding a ceiling and if so what is required?

This depends on a number of factors such as joist centres, board thickness, and performance requirements (e.g. vapour resistance and fire resistance performance).

Please refer to our White Book Specification Selector for more details. If noggings are required they are typically 38mm x 38mm or 50mm x 50mm timber, located between joists at the ceiling perimeter and to support the edges and/or ends of the plasterboard.