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. 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. DES has launched a new bidding portal (Bonfire) that allows you to submit bids and proposals to DES online. Project details or plans and specifications will provide information on how to submit a bid package, including the bid proposal form. Have a current certificate of registration as a contractor in compliance with chapter.