October 2013
Intermediate to advanced
306 pages
12h 17m
English
Content preview from Estimating for Heating and Ventilating, 3rd Edition
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6
The use of the priced Bill of Quantities, and the Variation Schedule
for the costing of contract variations, have been fully explained in
earlier chapters.
Costing Variations
Subject to the Owner's agreement, extras and deductions may be
valued at variation schedule rates, or when the work cannot be
properly measured, at agreed day work rates. A typical day work
rates schedule follows.
Labour (Wages of foreman, fitter, mate) plus 60 per cent
Statutory labour Όη-costs* (National Health
Pensions, S.E.T., Holidays with Pay,
Redundancy) plus 15 per cent
Fares and allowances under National
Agreement plus 15 per cent
Cost of materials and cartage ...
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