Material take off (MTO) is a term used in engineering and construction, and refers to a list of materials with quantities and types (such as specific grades of steel) that are required to build a designed structure or item.
This list is generated by analysis of a blueprint or other design document.
This is important when dealing with larger structures, allowing the company that does the take off to determine total weight of the item and how best to move the item (if necessary) when construction is completed.
Procurement and requisition are activities that occur after the bill of materials is complete, distinct from Inspection.
The final stages of the MTO is as instrumentally visible in the GAD (General Arrangement Drawing) for specific equipment.