Bill of Material (BOM)
EVM Terms
Reviewed by forProject Technology - updated Sep 2026
Quick definition: A Bill of Material (BOM) is a list of the material items, and their quantities, needed to build a product or assembly.
A BOM lists everything that goes into a product: raw materials, parts, assemblies, sub-assemblies, and intermediate assemblies, along with how many of each are needed. It doesn't have to include costs. Once actual or expected prices are added, it becomes a Priced Bill of Material (PBOM).
What this means for you
An accurate BOM is the starting point for estimating material costs and planning purchases. Errors in it flow straight into cost estimates and material availability.
Also known as
Bill of Materials
Used in
Basis of Estimate development for material costs
FAQ
What's the difference between a BOM and a Priced Bill of Material?
A BOM lists the materials. A PBOM adds actual or expected prices to them.
Does a BOM include labor?
No. A BOM lists only material items, not labor.
Definition maintained by forProject Technology.
© 2026 forProject Technology, Inc.
© 2026 forProject Technology, Inc.
