Download free, customizable construction bid templates and forms to track, manage, and appropriately estimate project bids. (2) The flow calculations must include the details of the average flow, the flow peaking factor, and the infiltration and inflow.Build a basic budget (without having to deal with calculations and formulas). This template features a set of hotlinked steps to help fill in the budget basics. Use our construction estimate template to gather all your labor and material costs and helps you come up with a realistic price tag. Step 1: Fill out the form.