The IS SP Part 27 (1987) serves as an exhaustive guide outlining uniform procedures for quantifying various building construction activities across India. It offers detailed instructions for measuring components such as masonry, concrete, plumbing, roofing, and finishing, to guarantee consistency and precision in cost estimation and contract administration. This code is indispensable for construction engineers, surveyors, and related professionals engaged in building and infrastructure projects.
Overview
The IS SP Part 27 (1987) serves as an exhaustive guide outlining uniform procedures for quantifying various building construction activities across India. It offers detailed instructions for measuring components such as masonry, concrete, plumbing, roofing, and finishing, to guarantee consistency and precision in cost estimation and contract administration. This code is indispensable for construction engineers, surveyors, and related professionals engaged in building and infrastructure projects.
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Frequently Asked
IS SP Part 27 (1987) prescribes the following standard units for building measurements: Linear dimensions should be recorded to the nearest 0.01 meter, areas to the nearest 0.01 square meter, and volumes to the nearest 0.01 cubic meter. All measurements reflect the actual net work installed and use the decimal system to ensure uniformity and precision in billing and quality assessment.
According to IS SP Part 27, reinforced and precast concrete components are measured depending on their type: wall panels and floor/roof slabs are quantified in square meters; beams, columns, and trusses are captured in running meters or counts; blockworks use cubic or square meters; and lightweight partitions are measured in square meters with thickness specified. Reinforcement is typically measured separately unless explicitly included in the concrete description, ensuring clear distinction between materials.
The standard instructs that plumbing and water supply pipes, including sewer lines, be measured by their internal diameter and length along the centerline, in running meters. This measurement includes fittings and joints. For irregular or circular layouts, an approximation to rectangular or square plans is acceptable to simplify quantification, ensuring consistent measurement across various plumbing configurations.
Openings up to 0.4 square meters are not deducted and require no extra measurement for formation. For openings larger than 0.4 square meters, the full opening area is deducted except for minor ends of beams or posts up to 0.5 square meters where no deduction applies. For openings between 0.5 and 3 square meters, deductions are applied with no additions for jambs or reveals, with specific rules based on pointing on faces. Openings exceeding 3 square meters require deductions on both faces with separate measurement of jambs, soffits, and sills. Rebated reveals are excluded from opening calculations.
Special finishes such as damp-proof courses are measured in square meters with thickness indicated, including formwork, edge finishing, and surface preparation. Horizontal and vertical damp-proof courses are measured separately. Surface treatments like painting, polishing, or varnishing are also measured in square meters and can be recorded separately or included with the main item. Surface preparation is factored into the measurement to ensure comprehensive cost assessment.
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