F Masonry
F11 Glass block walling: 15, 116, 121, 141, 410
F30 Accessories/ sundry items for brick/ block/ stone walling: 76, 92, 610, 920

H Cladding/Covering
H11 Curtain walling: 772, 775, 777
H13 Structural glass assemblies: 750
H30 Fibre cement profiled sheet cladding/ covering: 20, 25, 150, 151, 160, 234, 246, 247
H31 Metal profiled/ flat sheet cladding/ covering: 10, 30, 40, 110, 120, 150, 160, 234, 240, 241
H32 Plastics profiled sheet cladding/covering: 110, 111, 115, 120
H41 Glass fibre reinforced plastics cladding/ features: 655
H42 Precast concrete panel cladding/ features: 661
H43 Metal composite panel cladding/ covering: 30, 150, 160, 234
H51 Natural stone slab cladding/ lining/ features: 610, 630
H71 Lead sheet coverings/ flashings: 83, 85, 770, 780, 790
H72 Aluminium strip/ sheet coverings/ flashings: 65, 770, 780, 790
H73 Copper strip/ sheet coverings/ flashings: 73, 770, 780, 790
H74 Zinc strip/ sheet coverings/ flashings: 65, 770, 780, 790
H75 Stainless steel strip/ sheet coverings/ flashings: 65, 770, 780, 790

K Linings/ Sheathing/ Dry partitioning
K10 Plasterboard dry linings/ partitions/ ceilings: 15, 30, 35, 41, 45, 50, 115, 125, 145, 155, 165, 175, 185, 205, 215, 220, 245
K13 Rigid sheet fine linings and panelling: 140, 160, 370

L Windows/ Doors/ Stairs
L10 Windows/ Rooflights/ Screens/ Louvres: 75, 810
L20 Doors/ shutters/ hatches: 80, 820
L40 General glazing: 57, 58, 250, 310, 330, 350, 380, 381, 495, 496

M Surface finishes
M20 Plastered/ Rendered/ Roughcast coatings: 653
M21 Insulation with rendered finish: 85, 530
M40 Stone/ concrete/ quarry/ ceramic tiling/ mosaic: 75, 815
M60 Painting/ clear finishing: 170

N Furniture/ Equipment
N10 General fixtures/ furnishings/ equipment: 80, 760
N13 Sanitary appliances and fittings: 68, 580

P Building fabric sundries
P12 Fire stopping systems: 36, 47, 48, 335, 390, 395
P31 Holes, chases, covers and supports for services: 40, 710