122
Quantity Surveyor’s Pocket Book
Example 2 – Walls External walls Mean girths Facings 13.500 6.780 2/20.280 40.560 Ddt 4/2/½/112.5 0.450 Mean girth 40.110 40.11 2.70
Half brick wall in facings, vertical pointed one side ab Blockwork 13.500 Less 2/0.275 0.550 12.950 6.780 Less 0.550 6.230 12.950 2/19.280 38.560 Add 4/2/½/.100 0.400 38.960 Height 2.700 Less Wall plate 0.075 2.625
38.96 2.63
Walls in lightweight concrete blocks 100 mm thick in gauge mortar (1:1:6) 12.950 Add 2/0.10 0.200 13.150 6.230 0.200 6.430 13.150 2/19.580 39.160 Add 4/2/½/0.08 0.320 Cavity centre line 39.480
39.48 2.70
Forming cavities in hollow walls 75 mm wide with and including stainless steel twisted wire wall ties @ 5 per square metre. 38.560 Add 4/2/½/0.150 0.600 39.160 1