How to create detailed estimate for the projected new construction or residential building
Detailed estimating is also known as “Prime Cost”, “Bottoms Up” or “Grass Roots”. A thorough and detailed analysis of all the tasks is necessary to be able to deliver a project or product for the calculation of an estimation.
One of the most important features of a “good” estimate is that it will try to maximize the return on this investment by trying to obtain the highest value at the lowest cost. Using a combination of estimating methods, the estimate can be developed.
To state the meaning of estimate, it is a calculation of the quantities of various items of work, and the expenses likely to be subjected from there on. Therefore, estimated cost of the work is the total of these probable expenses to be incurred on.
Description of Work
- Excavation of earth work
- Sand filling required for foundation/basement
- P.C.C 1:5:10 mix for foundation, 40mm metal
- R.C.C 1:2:4 for Beam, sunshade, loft, roof, by using tor steel rods
- Dummy Concrete 1:3:6
- Required for centering andscaffolding work which done by using tor steel rods & mild steel
- Reinforcement Work
- Brick work in c.m. 1:5 in foundation along with chamber bricks
- Brick work in c.m. 1:5 with chamber bricks required for superstructure
- Plastering for all walls C.M 1:5 mix, 12mm thick thorough estimate of inner and outer wall.
- Plastering for ceiling in C.M 1:3 mix 10mm thick
- Also, tiles flooring
- Concrete for weathering course
- Tiles for weathering course
- White wash required for inner and outer walls.
- Colour wash needed forinner andouter walls.
- Doors and Windows
- Electrical work
- Plumbing work
- Septic tank work
- Bore work arrangements
- Cupboard work arrangements
- Grill works
- Elevation item required for work
- Miscellaneous items required for work
In situations where there is a lack of available funds and it is less than the estimated cost then the work is completed in parts or certain reductions are made or alteration of specific work takes place.
Given below are the absolute requirement for the preparation of an estimate:
1. It is important that the plan, elevation and sections of important points are drawn.
2. In regards of workmanship and properties of materials it must be mentioned in detailed specifications.
3. For the current year the Standard schedule of rates must be mentioned.