The three general categories of costs included in manufacturing processes are direct materials, direct labor, and overhead. Note that there are a few exceptions, since some service industries do not have direct material costs, and some automated manufacturing companies do not have direct labor costs.
Protect Yourself when Working with Custom Home Builders Only work with a licensed contractor. Get the contract in writing. Avoid “lump sum” bids. Talk to several contractors. Tie payments to deliverables. Get proof of payment to suppliers.