The main contractor should always mark out the main utility lines, electrical infrastructure and plumbing pipes before you start digging. Interfering with such services can lead to costly damages that you may be required to repair. If you encounter hard rocks in the course of your excavation, it may be difficult to complete the job on time if you err on the earthwork estimating stage.
Since you are using machines in a heavy job, a small breakdown can increase the downtime and lead to huge losses if the client decides to invoke the damages clause. The other unpredictable factor comes in form of rocks that you may encounter when you start digging. You also need to know about all electricity and utility lines prior to excavation to prevent damaging the existing infrastructure.
If you have your own machinery, you can give a more reasonable quote since you do not have to hire the tractors and lorries. Even as you do so, be sure to charge for extra works that the client may not mention during the quotation stage. If there is a low area that needs to be filled with soil, you might as well consider it as an extra job.
The need to transport the material to distant areas must also be accounted for depending on the distance. Check with the local codes to see what they charge per meter. However, you do not want your figure to be too high especially if you are tendering from the job since the client is not likely to assign the highest bidder.
Separating the two items will help you to be covered in the event of unexpected conditions underneath. You do not want to be paid to excavate rocks at the rate of excavating sand. Doing this continually will take its toll on your company finances and force you to close down eventually. Take into consideration the type of material, the quantity and the machine required to work on it.
If you do not know how to read site topographical and geological plans, be sure to find somebody who can as missing some crucial data will not be an excuse when awarded the project. This will also help you to assess the difficulty of the job or any accessibility problems. Soil structures will also have a bearing on the ease with which you can do the job. Some consultants have ways of estimating the subsurface conditions by digging pit holes as they do when mining.
You would rather bid in terms of cubic yards instead of charging a lower figure and having to meet the bill yourself. Your overheads should also take into consideration the administrative costs that you have to cater for in addition to doing the work. You will only claim that you got a profit after paying for your site and office expenses as well as any loan interests that you might have take either to purchase or rent equipment.
It is always wiser to decide what you will charge using normal rates also known as general quantities. In such cases, you will be able to use hoes, loaders and scrapers at their optimum production rates. In other cases, you will have to use special rates in areas where work will be slower and it will be difficult for machinery to manoeuvre.
Since you are using machines in a heavy job, a small breakdown can increase the downtime and lead to huge losses if the client decides to invoke the damages clause. The other unpredictable factor comes in form of rocks that you may encounter when you start digging. You also need to know about all electricity and utility lines prior to excavation to prevent damaging the existing infrastructure.
If you have your own machinery, you can give a more reasonable quote since you do not have to hire the tractors and lorries. Even as you do so, be sure to charge for extra works that the client may not mention during the quotation stage. If there is a low area that needs to be filled with soil, you might as well consider it as an extra job.
The need to transport the material to distant areas must also be accounted for depending on the distance. Check with the local codes to see what they charge per meter. However, you do not want your figure to be too high especially if you are tendering from the job since the client is not likely to assign the highest bidder.
Separating the two items will help you to be covered in the event of unexpected conditions underneath. You do not want to be paid to excavate rocks at the rate of excavating sand. Doing this continually will take its toll on your company finances and force you to close down eventually. Take into consideration the type of material, the quantity and the machine required to work on it.
If you do not know how to read site topographical and geological plans, be sure to find somebody who can as missing some crucial data will not be an excuse when awarded the project. This will also help you to assess the difficulty of the job or any accessibility problems. Soil structures will also have a bearing on the ease with which you can do the job. Some consultants have ways of estimating the subsurface conditions by digging pit holes as they do when mining.
You would rather bid in terms of cubic yards instead of charging a lower figure and having to meet the bill yourself. Your overheads should also take into consideration the administrative costs that you have to cater for in addition to doing the work. You will only claim that you got a profit after paying for your site and office expenses as well as any loan interests that you might have take either to purchase or rent equipment.
It is always wiser to decide what you will charge using normal rates also known as general quantities. In such cases, you will be able to use hoes, loaders and scrapers at their optimum production rates. In other cases, you will have to use special rates in areas where work will be slower and it will be difficult for machinery to manoeuvre.
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