This article explains what a bid document is.
While trying to place a bid on PlanHub, you may have noticed you have two options to submit your bid, "Quick Bid" or "Create a cost breakdown instead". Both options require a "bid document".
This document is your estimate or proposal that you would like to send to the General Contractor.
Bid documents can be as simple as a word document, PDF, or Excel sheet with your company's letterhead, bid amount, and the trades you are bidding on, (great for the Quick Bid option).
You can go into more detail and break out the specific bid amounts if you wish, but it does not have to be elaborate, (you can build this in your own document or in the Bid Builder).
When you select the Create a cost breakdown, you will be sent to the Bid Builder, where you can build your bid document. This video explains how to use Bid Builder.