4.1 TAKING OFF QUANTITIES BY TRADE SYSTEM
GENERAL- METHODS OF TAKING OFF QUANTITIES- INDIVIDUAL WALL
METHOD- CENTRE LINE METHOD- EXAMPLES- ENTERING THE
DIMENSIONS – STANDARD FORMS FOR ENTERING DETAILED
MEASUREMENTS AND ABSTRACT ESTIMATES- ROUNDING OF
QUANTITIES. PREPARING DETAILED ESTIMATE USING TRADE SYSTEM
AND TAKE OFF QUANTITIES FOR ALL ITEMS OF WORKS IN THE
FOLLOWING TYPES OF BUILDINGS: A SMALL RESIDENTIAL BUILDING
WITH TWO/THREE ROOMS WITH RCC FLAT ROOF, A SMALL .
TAKING OFF QUANTITIES BY GROUP SYSTEM
GENERAL- STANDARD METHOD OF MEASUREMENT- TAKING OFF AND
RECORDING THE DIMENSIONS- ORDER OF TAKING OFF- DIMENSION
PAPER- ENTERING DIMENSION PAPER- SPACING DIMENSIONSDESCRIPTIONS – CANCELLATION OF DIMENSIONS – SQUARING
DIMENSIONS- METHOD OF SQUARING- CHECKING THE SQUARINGCASTING UP THE DIMENSIONS- ABSTRACTING AND BILLING-FUNCTION
OF ABSTRACT- USE OF ABSTRACT SHEETS- ORDER OF ABSTRACTINGPREPARING THE ABSTRACT –CHECKING THE ABSTRACT – CASTING
AND REDUCING THE ABSTRACT- WRITING THE BILL- METHOD OF
WRITING THE BILL- CHECKING THE BILL. PREPARING DETAILED
ESTIMATE USING GROUP SYSTEM AND TAKE OFF QUANTITIES FOR ALL
ITEMS OF WORKS