The so-called rate bidding, in a simple way, means that the Contractor submits the tender in the time of bidding according to the proportion of the budget quota floating down and as the basis for bidding evaluation; the list bidding, that is, the tendering unit provides the quantity of the project, the Contractor submits the comprehensive unit price for each sub-purpose, and the total price as the basis for bidding evaluation.
The advantage of rate bidding is that before bidding, only the general scope of the project is known, norms are established, and links of calculating the quantity and cost of the project are not included. The bidding speed is so fast that it is possible to obtain the bidding results before obtaining the consent of the project planning. The start-up time and the design schedule are allowed to be partially stacked, and the construction drawings can be batched according to the construction progress. The defect is that the total contract price and the cost of information are ordinary. According to the project scope budget, the economy of the design can not be evaluated, the gap between the budget and the actual cost is too large, which is not conducive to budget management and cost control. It takes a long time to recalculate the amount of work when settling accounts. The budget quota can not cover all the work in the contract. There are many disputes in settling accounts, and Party A often loses in the end. Inventory bidding on the contrary, the advantage is that after the completion of the bidding, the cost is fundamentally affirmed, the economic performance of the design can be quickly identified, which is convenient for cost management, and all the items have unit prices, so the settlement only need to be adjusted according to the quality changes in the total contract price.
Inventory bidding on the contrary, the advantage is that after the completion of bidding, the cost is fundamentally affirmed, the economic performance of the design can be quickly identified, which is convenient for cost management, all the items have unit prices, and the settlement only needs to be adjusted according to the quality changes in the total contract price, the price entanglement is less, and the cost risk is small; the defect is that the construction drawing documents with sound demand before the beginning of bidding, the project. Bill of quantities calculation and contractor group price time is also comparatively long, the general bidding rate than the progress of the project is about two months slower.
Rate bidding does not show the omission of list bidding, and list bidding often passes on the risk of omission to contractors through the way of bidding clauses (typically within the scope of bidding, but the contents not included in the list are understood to be integrated into the comprehensive unit price). Because the quota description can not cover all the contents of practical projects, it is easy to produce differences in understanding, and the contractor's group price. In order to have a certain advantage over developers, so the general rate bidding, the winning bidding results according to the quota floating level is greater than the list bidding, and the total settlement price is often higher than the list bidding, which is also the reason for the industry's recommended list bidding.
But the world can not be absolute, although the rate of bidding will form a rise in the total price of the project, but the time saved can reduce financial costs, especially in the case of high land price ratio. If the developer's cost management team is strong enough, it will be able to control the rise of the total project price within a reasonable range, or even less than the financial cost savings.
Taking a project as an example, the cost of civil engineering is about 1500 yuan per square metre, and the cost rate is 2% higher than the list tender settlement price (different cost management degree is different), then the unit cost is increased by 30 yuan, while the land price is 3000 yuan/square metre, and the monthly interest rate of 0.6%, then the unit cost is increased by 36 yuan. The choice of two forms depends on the degree of land price. With the level of cost management, the higher the level of cost management, the smaller the settlement price difference, the more obvious the advantages of rate bidding, which is also the reason why some benchmarking enterprises still use rate bidding.
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