An MTO material document or Material Takeoff, gives project teams a structured list of everything required to complete a job. When built correctly, it connects drawings to procurement, purchasing, delivery, and field installation. A detailed MTO helps contractors identify quantities early, account for waste and contingencies and reduce the risk of discovering on site that critical materials were never ordered.
What Is an MTO Material Document?
An MTO, or Material Takeoff, is a detailed document that identifies the materials required for a construction project and their estimated quantities.
Depending on the trade and project, an MTO may include:
- Material descriptions
- Sizes & specifications
- Quantities
- Units of measurement
- Locations or assemblies
- Waste allowances
- Required delivery dates
- Drawing references
- Notes & assumptions
For example, a concrete MTO might include concrete by cubic yard, reinforcing steel by pound, vapor barrier by square foot and formwork by linear foot.
The purpose isn’t simply to create a shopping list. A strong MTO creates a reliable connection between the construction documents and what needs to arrive at the jobsite.
Why Do Material Shortages Happen?
Material shortages don’t always happen because someone forgot to order something. They can start much earlier in the estimating and takeoff process.
A shortage can result from:
- Incomplete drawing review
- Missed details or schedules
- Incorrect measurements
- Wrong units
- Unaccounted waste
- Design revisions
- Material substitutions
- Incorrect quantity transfers
- Poor communication between estimating and purchasing
- Ordering from outdated quantities
For example, an estimator may calculate 8,000 square feet of drywall based on the main floor plans but overlook a small area shown on another sheet. The purchasing team orders from the MTO, the material arrives and the shortage isn’t discovered until installation begins.
The material itself isn’t necessarily the problem. The information used to order it was incomplete.
That’s why your material take off needs to be treated as a project control document rather than simply an estimating worksheet.
Step 1: Start With the Latest Drawing Set
The first step is making sure your MTO is based on current information. Before measuring anything, confirm:
- Drawing revision
- Issue date
- Addenda
- Specifications
- Approved substitutions
- Relevant schedules
- Architectural and engineering details
Using an outdated drawing set can invalidate an otherwise accurate takeoff.
If a revised plan changes wall dimensions, slab thickness, door openings, equipment locations or material specifications, the original MTO may no longer reflect the actual project.
Document the drawing revision used for the takeoff so purchasing and field teams know exactly where the quantities came from.
Step 2: Break the Project Into Material Categories
Don’t build one enormous list containing every material. Organize the MTO into logical categories or assemblies.
For example, a commercial framing MTO might separate:
Structural framing
- Studs
- Tracks
- Headers
- Blocking
- Exterior sheathing
- Interior sheathing
- Moisture-resistant panels
Fasteners
- Screws
- Anchors
- Clips
- Connectors
This structure makes it easier to review quantities and identify missing scope. It also allows purchasing teams to group materials according to suppliers, lead times or delivery requirements.
Step 3: Capture Quantities Directly From the Drawings
The quality of your MTO depends on the quality of your takeoff. Measure the relevant areas systematically rather than jumping between sheets.
Depending on the trade, your material takeoff may include:
- Length
- Area
- Volume
- Count
- Weight
- Linear footage
Always record the unit alongside the quantity.
For example, 4,500 SF of sheathing is very different from 4,500 LF of trim. Consistent units prevent purchasing mistakes when quantities move from estimating into procurement.
A digital material takeoff workflow can make this process more repeatable by keeping measurements, annotations, and quantities connected to the drawing set. For more detail on the process, see this Material Takeoff guide.
Step 4: Account for Waste and Cutting Loss
Ordering exactly the measured quantity isn’t always enough. Materials are cut, damaged, discarded, overlapped, or lost during installation.
Your MTO should therefore distinguish between the net quantity shown by the takeoff and the order quantity required for procurement.
For example:
Net requirement: 10,000 SF
Waste allowance: 7%
Order quantity: 10,700 SF
The appropriate allowance depends on the material, installation method, project complexity and contractor practices.
Don’t apply the same percentage blindly to every material. A sheet good with significant cutting may require a different allowance than a standardized manufactured component.
Step 5: Flag Long-Lead Materials
Not every shortage happens because of an incorrect quantity. Sometimes the material was ordered correctly but didn’t arrive when needed.
Add lead-time information to your MTO for materials that can affect the schedule.
Examples might include:
- Custom steel components
- Specialty equipment
- Doors and hardware
- Long-lead mechanical equipment
- Custom fabricated materials
- Specialty finishes
A useful MTO can therefore support both quantity control and procurement planning.
If a material has a six-week lead time and installation starts in four weeks, the issue should be visible before the crew reaches that phase.
Step 6: Add Drawing References and Locations
A quantity without context is difficult to verify. Where possible, each material should be associated with a drawing, detail, room, floor, elevation or assembly.
Instead of: Concrete – 150 CY
Use: Foundation concrete – 150 CY – S-201 to S-204
This makes the MTO easier to audit, update and helps field teams investigate discrepancies when actual conditions differ from the original estimate.
Step 7: Create a QA Review Before Procurement
Never treat the first completed MTO as final. Run a structured review before quantities reach purchasing.
Check:
- Scope
- Quantities
- Units
- Specifications
- Waste
- Revisions
- Procurement
A second review can catch omissions that are difficult to notice when you’re too close to the original takeoff.
Step 8: Keep the MTO Updated
Construction documents change. When they do, your MTO needs to change with them.
Track revisions rather than replacing the original quantities without explanation, giving the team a record of what changed and why.
For example:
Original: 500 LF of pipe
Revision: 575 LF
Change: +75 LF due to revised routing
This makes procurement adjustments easier and reduces confusion between estimating, purchasing, project management, and the field.
Build the MTO Around the Jobsite, Not Just the Estimate
A strong MTO material document does more than tell you what the project costs. It helps answer a more practical question: What needs to be available, in what quantity, and when?
That requires accurate takeoff, clear organization, waste allowances, revision tracking, and procurement visibility.
When your material takeoff is connected to the drawings and reviewed before purchasing, you can catch missing quantities before they become field problems.
The goal isn’t to eliminate every unexpected material issue. Construction projects change, and actual conditions can differ from plans.
The goal is to make preventable shortages much harder to happen.
A well-built MTO turns the takeoff from a static estimating document into a practical bridge between plans, purchasing, deliveries and installation, helping your crews spend less time waiting for materials and more time building.
