Material Quantity Takeoff Calculator

Build faster estimates with accurate material takeoffs here. Choose items, enter sizes, get quantities instantly. Download tidy reports for pricing, ordering, and control work.

Project settings
Use consistent units to keep outputs reliable.
White theme
Examples: USD, PKR, EUR, GBP.

Volume + optional mix breakdown.
Blocks + mortar allowance.
Liters from area, coats, coverage.
Tiles and box count.
Weight from diameter and length.

Concrete
m, mm, m³
Slabs, pads, footings, and pours by volume.
Used for mix estimate only.
Mix ratio for estimated cement, sand, aggregate.

Blockwork
m, mm, pcs
Wall blocks from net area and module size.
Typical range 0.010–0.015.

Paint
m², L
Liters based on area, coats, and coverage.

Floor tiles
m², pcs, box
Boxes computed from tiles per box.

Rebar
m, mm, kg
Weight uses d²/162 (kg per meter).
Reset
Example data table
Typical takeoff output format for pricing sheets.
Section Qty Unit
Concrete7.56
Blockwork414pcs
Paint25.68L
Tiles22box
Rebar694.4kg
How to use this calculator
  1. Select the takeoff sections you need.
  2. Enter dimensions and deduction values.
  3. Add waste percentages for site losses.
  4. Enter unit rates to estimate amounts.
  5. Press Calculate and export your report.
Formulas used
Concrete volume
V = L × W × (T/1000). Apply waste: V × (1 + w/100).
Mix estimate: DryVolume = WetVolume × dryFactor.
Blockwork
NetArea = (L × H) − Openings.
Blocks = NetArea / ModuleArea, then add waste and round up.
Paint
Liters = (NetArea × Coats / Coverage) × (1 + w/100).
Tiles
Tiles = Area / TileArea, add waste, round up.
Boxes = ceil(Tiles / TilesPerBox).
Rebar
kg per meter ≈ d² / 162. TotalWeight = Length × kg/m × (1 + w/100).

Scope and measurement rules

Start by matching every line item to drawings, specs, and a measurement rule. For slabs, measure plan area and verify thickness zones. For masonry, measure gross wall area, then deduct openings and movement joints. For finishes, separate floors, walls, and ceilings so coverage assumptions stay realistic. Record units consistently (m³, m², pcs, kg) to avoid conversion drift during pricing.

Waste and contingency allowances

Waste is not the same as contingency. Waste covers cutting, spillage, laps, damage, and ordering constraints. Typical ranges are 3–8% for concrete placement variation, 5–10% for blocks depending on breakage, 5–12% for tiles due to cuts and pattern, and 5–15% for paint based on surface profile. Keep contingency separate for design changes and site unknowns.

Unit rate inputs and cost control

Unit rates should reflect delivered cost, not catalogue prices. For concrete, include pumping, admixtures, or testing if billed per cubic meter. For masonry, blocks may be per piece while mortar is treated as an allowance per square meter. For paint, confirm coverage per liter per coat, then multiply by coats and add waste. For steel, pricing by kilogram works best when bar schedules are incomplete.

Material reconciliation and reporting

A good takeoff becomes a procurement checklist. Compare calculated quantities with supplier pack sizes: tile boxes, paint cans, rebar stock lengths, and block pallets. Round in the direction that reduces site shortages, then note why the rounding occurred. Exporting CSV helps build a rate analysis sheet, while PDF snapshots support approvals, client variations, and audit trails when quantities are revised. Add a revision date and estimator initials to every exported report.

Quality checks before procurement

Run quick checks before ordering: confirm dimensions against scale bars, verify deductions are not double-counted, and review extreme outputs that suggest a unit mistake. Compare concrete volume against truck counts, blocks against wall elevation logic, and paint liters against past projects of similar area. When results align with engineering judgement, you can lock quantities and track consumption weekly.

FAQs

What is a material quantity takeoff?

It is a structured list of measured quantities from drawings and specs, mapped to units like m³, m², pcs, and kg. It supports pricing, procurement, and progress tracking by comparing planned quantities to actual consumption.

How should I choose waste percentages?

Use project history, handling conditions, and finish complexity. Start with 5% for general materials, increase for cutting-heavy finishes, and reduce for pre-cut or factory-controlled items. Keep waste separate from contingency for scope changes.

Why does rebar use d²/162 for kg per meter?

It is a common site approximation derived from steel density and bar diameter in millimeters. Multiply kg/m by total length to estimate weight quickly when detailed bar schedules are not available.

Can I deduct openings and niches from finishes?

Yes. Subtract doors, windows, and large penetrations from wall or ceiling areas before applying coverage. For small items, it is often faster to keep a standard deduction rule and treat minor differences as waste.

How do I validate the calculator results?

Cross-check with a second method: truck counts for concrete, blocks per course and elevation, tile boxes per room, and paint liters from past projects. Large deviations usually indicate unit errors, missed deductions, or wrong coverage assumptions.

What do the CSV and PDF exports include?

They include the latest calculated items, units, quantities, unit rates, and amounts, plus a total cost line. Use CSV for rate analysis and procurement sheets, and PDF for approvals, sharing, and record keeping.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.