Excavation exceeding 1.5 m in width as well as 10 sq.m on a plan but not exceeding 300 mm in depth shall be described as ‘surface excavation’ and measured in square meters.
Unless otherwise stated, all work shall be measured net in the decimal system as fixed in its place as given in below point no 1. to below point no 3. Any work is done extra over the specified dimensions shall be ignored.
Dimensions shall be measured to nearest 0·01 m except for the thickness of slab which shall be measured to nearest 0·005 m,
Areas may be worked out to the nearest 0·01 square meter.
Cubic contents shall be worked out to the nearest 0·01 cubic meter.
Ends of dissimilar materials, for example, beam, ports, girders, purlins, trusses, corbels, and steps up to 500 cm2 in cross-section.
Opening up to 0.1 m2 or as specified.
The volume occupied by reinforcement.
The volume occupied by pipes, conduits, sheathing, etc., not exceeding 100 cm2 each in cross-sectional area or as specified.
Small voids, such as the shaded portions in as per below fig., when these do not exceed 40 cm2 each in cross-section.
Stops, miters, returns, rounded ends, junctions, dishing, etc., in connection with linear or super labors,
Note: In calculating the area of an opening. The thickness of any separate lintel or sill shall be included in the height. No extra labour for forming such an opening or voids shall be measured.
Ends of dissimilar materials (that is, joists, beams, lintels, posts, girders, rafters, purlins, trusses, corbels, steps, etc.); up to 0.1 sq.m. in section.
Opening up to 0.1 sq.m. in the area ( see Note ).
Wallplates, bed plates, and bearing of slabs, CHAJJAS, and the like, where thickness does not exceed 10 cm, and the bearing does not extend over the full thickness of the wall.
Cement concrete blocks as for holdfasts and holding down bolts.
Iron fixtures, such as wall ties, pipes up to 300 mm diameter, and holdfasts for doors and windows. and
Chases of section not exceeding 50 cm in girth.
Note- In the calculating area of an opening, any separate lintel or sills shall be included with the size of the opening, but end portions of lintel shall be excluded, and the extra width of a rebated reveal, if any, shall also be excluded.
Broken glass coping laid along with brickwork shall be measured in square meters and described stating the thickness of mortar and weight of broken glass per square meter of coping.
Ends of dissimilar materials (that is, joists, beams, lintels, posts, girders, rafters, purlins, trusses, corbels, steps, etc.); up to 0.1 sq.m. in section.
Opening up to 0.1 sq.m. in the area ( see Note ).
Wallplates, bed plates, and bearing of slabs, CHAJJAS, and the like, where thickness does not exceed 10 cm, and the bearing does not extend over the full thickness of the wall.
Cement concrete blocks as for holdfasts and holding down bolts.
Iron fixtures, such as wall ties, pipes up to 300 mm diameter, and holdfasts for doors and windows. and
Note- In the calculating area of an opening, any separate lintel or sills shall be included with the size of the opening, but end portions of lintel shall be excluded, and the extra width of a rebated reveal, if any, shall also be excluded.
The following labours shall be measured separately in square meters when exceeding 10 cm in girth or width and in running meter if not exceeding 10 cm in girth or width unless included in the main item:
Sunk work to faces, beds, and joints as in arches, voussoirs and key blocks, splays, batters, weatherings, etc.; and
Molded work as in cornices (Girth of molding measured).
The following labours shall be measured separately in running meters, when not exceeding 10 cm in width or girth unless included in the main item:
Chamfers, arrises, or splays not exceeding 1.5 cm in width;
Chamfers, arrises, or splays exceeding 1.5 cm but not exceeding 10 cm in width;
Rounded bullnose-angles or moldings or hollow angles;
Rebates, grooves ( square, hollow or dove-tailed ) in facework;
Rebates, grooves ( square, hollow or dove-tailed ) for joints, tongues of sills, etc.; and
Foundation, footings, bases of columns, etc., and mass concrete.
Flat surfaces, such as soffits of floors, roofs landing, and the like where floors exceed 200 mm in thickness, the formwork shall be measured separately, stating the thickness.
Vertical surfaces, such as walls, partitions and the like, including attached pilasters, buttresses, plinth and string courses and the like, etc.;
Sloping or battering surfaces, including folded plates;
Where inclination to the horizontal plane does not exceed 300 (Requiring shuttering only on the underside)
Where inclination to horizontal plane exceeds 300 (where shuttering may be provided both on the underside and upper side if required ) (The only underside area to be measured).
Arches
Up to 6 m span
Above 6 m span
Cylindrical Shells ( Area of Underside lo be Measured)
Radius less than 3 m
Radius above 3 m
Waffle or ribbed slabs where shuttering is required for the bottom inclined surface;
Dormer vaults and shell roofs having curved surfaces in both directions (Only the area of underside shall be measured)
Sides and soffits of beams, beam haunchings, cantilevers, girders, bressummers, and lintels; beams and girders 1 m deep and over shall be measured separately;
Sides of columns, piers, pillars, posts and stanchions and struts
Edges of slabs and breaks in floors and walls (To be measured in running meters where under 203 mm width or thickness).
Cornices and moldings.
Small surfaces, such as cantilever ends, brackets and ends of steps, caps, and bases to pilasters and columns and the like
Challah hoods, weather shades, Chhajjas, corbels, etc, including edges.
Staircases with sloping or stepped soffits, including risers and stringers, excluding landing.