5 Different types of construction contracts and their suitability 1
1. Lump sum Contract: A lump sum contract is normally used in the construction industry to reduce design and contract administration costs. It is called a Lump Sum because the contractor is required to submit a total and globalprice instead of bidding on individual items with this kind of contract the engineer and/or contractor agrees to do a described andspecified project for a fixed price. 2. Unit Price Contract: Items of work of the contract are specified with estimated quantities in the Bills of Quantities. Estimated quantities are surveyed by Architect/Engineer. Contractors enter unit prices against the estimated quantities of work.The contract is based on estimated quantities of work items and unit price for each of these work items. Payment is made on the basis of units of work actually done and measured in the field multiplied by the unit prices.
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