A construction proposal is a document used to provide a client with a clear understanding of a project's details. Craft persuasive bid proposals for construction projects with this comprehensive guide.Explore key components, from project overview to pricing details. Construction bids are quite lengthy and should contain as much information as possible regarding the project and what will be required of the contractor. Use a construction proposal template to automate the creation of contracts and make sure you never put the wrong name or figure in a proposal again. This Invitation to Bid can be used for construction procurement. Construction Bid Forms are a way to communicate interest on a construction project and provide a contractor's estimate on costs, timelines, terms and details.