Material take-off
Roof Material Calculator
A complete roof material take-off includes field material, underlayment, starter strip, ridge cap, drip edge, flashing and fasteners. On a 2,000 sq ft asphalt roof, materials run about $3,965 to $6,396 of a $8,093 to $12,278 job once labor, tear-off labor and the permit are added.
Pick a roofing system and enter your area. You get the complete itemized material list with quantities, unit prices and a total. It is the same take-off a contractor builds before quoting.
Build a material list
Quantities include the waste factor appropriate to the system you choose.
Material cost
all items, waste included
- Roofing squares
- 20.0
- Waste applied
- 12% on cut materials
- Line items
- 10
- Material per sq ft
- $1.98 – $3.20
- Materials 52% · $6,396
- Labor 44% · $5,382
- Permit 4% · $500
Material breakdown
Quantities are what gets ordered for the job in the calculator above: whole bundles, sticks and rolls, with the waste allowance on cut materials.
| Material | Qty | Cost |
|---|---|---|
| Asphalt Shingles | 68 BUNDLE | $2,040 – $3,264 |
| Dumpster Rental (Debris Removal) | 1 EA | $350 – $500 |
| ProEdge Estate Gray Hip Ridge Roof Shingles ( 33-lin ft per Bundle ) | 5 EA | $338 – $477 |
| Ice & Water Shield | 5 ROLL | $275 – $475 |
| Roofing Vents | 8 EA | $160 – $400 |
| Roofing Felt (Underlayment) | 9 ROLL | $198 – $360 |
| Starter Strip Shingle Plus Black Starter Roof Shingles ( 105-lin ft per Bundle ) | 5 EA | $200 – $350 |
| 10-in x 50-ft Silver Aluminum Roll flashing | 5 EA | $185 – $261 |
| 2-in x 10-ft Black Galvanized steel Drip Edge | 27 EA | $138 – $195 |
| 2-in Smooth Shank Electro-galvanized Roofing Nails 3817 -Per Box | 2 BOX | $81 – $114 |
Links to retailers are affiliate links: if you buy through one we may earn a commission, and it never changes these figures.
Reading a material take-off
A take-off lists every component by quantity and unit, then prices each one. It is the document that separates a real estimate from a guess, and it is what lets you compare two contractor bids honestly. If one bid is $2,000 cheaper, the take-off shows whether they used thinner underlayment, skipped ice shield, or simply have lower overhead.
Quantities here scale from a dataset calibrated per square, with a waste factor matched to the material. Slate and cedar carry 18% because their cuts waste more; membrane systems carry 8% because they roll out in wide sheets.
Material cost as a share of the job
On a standard asphalt replacement our dataset puts materials at about 52% of the total and labor at 44%, with the permit making up the rest. Move up in material grade and the balance tips further toward material: on natural slate, materials are about 56% of the job even though slate also takes far more labor hours per square.
This is why cheap material rarely produces a cheap roof. The crew hours barely change between a 3-tab and an architectural shingle, so the saving is limited to the material line while the lifespan difference is ten years or more.