A construction proposal is a document used to provide a client with a clear understanding of a project's details. 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.BID TITLE: "Sierra Commercial Carport". NOTICE: No substitution or revision to this Bid Proposal form will be accepted. Craft persuasive bid proposals for construction projects with this comprehensive guide. Explore key components, from project overview to pricing details. In this article, we're sharing insight into bidding on construction projects, giving you the tools you need to win construction bids and grow your business.