3820 Carpentry (0) 3821 Timber framing (34) Timber members, including pre-fabricated structural members, fabricated frames, composite timber/steel members, forming the general floor, sub-floor, wall, partition and roof framing; wall framing behind curtain walling; timber framing associated with reinforced concrete, metal; timber structural framing including fixing trusses and laminated members 3822 Solid timber wall framing (1) Walls of dressed solid timber forming infilling between a structural timber frame 3827 Sheet bracing for timber framing (2) Discrete sheet bracing elements for timber framing, other than rigid air barriers, cladding, lining or sarking. 3828 Miscellaneous timber framing (0) Miscellaneous timber framing elements forming part of the general floor, sub-floor, wall, partition, posts, beams, roof framing etc.