Clearly outline labor, materials, equipment, permits, and any other relevant expenses. Map out a realistic timeline for the project, breaking it down into phases of work.In this video we'll discuss how to write a professional looking construction proposal that is more than a single page document. In this article, learn how to customize a construction proposal template that you can use when participating in bids. Create a detailed construction bid proposal to highlight your expertise and increase your chances of being selected for projects.