This section is from the book "Spons' Mechanics' Own Book: A Manual For Handicraftsmen And Amateurs", by Edward Spon. Also available from Amazon: Spons' Mechanics' Own Book.
Surface painting is measured by the superficial yd., girting every part of the work covered, always making allowance for the deep cuttings in mouldings, carved work, railings or other work that is difficult to get at. Where work is very high, and scaffolding or ladders have to be employed, allowances must be made. The following rules are generally adopted in America in the measurement of work: - Surfaces under 6 in. in width or girt are called 6 in.; from 6 to 12 in., 12 in.; over 12 in., measured superficial. Openings are deducted, but all jambs, reveals, or castings are measured girt. Sashes are measured solid if more than 2 lights. Doors, shutters, and panelling are measured by the girt, running the tape in all quirks, angles, or corners. Sash doors measure solid. Glazing in both windows and door3 is always extra. The tape should be run close in over the battens, on batten doors, and if the stuff is beaded, add 1 in. in width for each bead. Venetian blinds are measured double. Dentels, brackets, medallions, ornamented ironwork, balusters, lattice work palings, or turned work, should all be measured double. Changing colours on baso boards, panels, cornices, or other work, one-fourth extra measurement should be allowed for each tint.
Add 5 per cent. to regular price for knotting, puttying, cleaning, and sandpapering. For work done above the ground floor, charge as follows: - Add 5 per cent. for each storey of 12 ft. or less, if interior work; if exterior work, add 1 per cent. for each ft. of height above the first 12 ft.