Cost & quantities
Grey structure cost
Estimate covered-area cost and major material quantities with city, quality, storey and custom-rate options.
Calculate grey structure costCalculator directory
Construction calculators
Purpose-built tools for early cost and material planning, with formulas and limitations shown beside every result.
Concrete materials
Concrete & cement
Estimate wet concrete volume, cement bags, sand and crush from slab dimensions and a nominal mix.
Calculate concrete materialsReinforcement
Steel / saria weight
Calculate round rebar weight using bar diameter, count, length and waste allowance.
Calculate steel weightMasonry
Brick wall quantity
Estimate bricks for a wall after openings, mortar volume and waste are considered.
Calculate brick quantityChoose the calculator by the decision you need to make
Use the project-wide calculator for an early budget. Use a material calculator only when you already know the relevant dimensions. A material total is not a structural design and should not be used to choose slab thickness, bar spacing or concrete strength.
| Your question | Best starting tool | Information still required |
|---|---|---|
| What budget range should I discuss? | Grey structure cost | Covered area, scope, current local rate and contingency. |
| How much concrete volume is in this rectangular pour? | Concrete and cement | Approved dimensions, specified mix or design, and waste method. |
| What does this rebar schedule weigh? | Steel / saria weight | Bar marks, diameters, cut lengths, laps, hooks and count. |
| How many bricks are needed for this wall? | Brick wall quantity | Net wall dimensions, actual brick size, bond and opening deductions. |
Do not add the same material twice
The main calculator's grey-structure allowance already represents a package of work. Its material ratios and the separate material tools are cross-checks, not automatic extras to add to that total. If you price a measured concrete quantity separately, replace the matching allowance in your cost breakdown; do not keep both amounts.
For example, a hypothetical 10 ft × 12 ft slab with a specified 0.5 ft thickness contains 60 cft of geometric concrete. That calculation establishes volume only. Reinforcement, formwork, placement, testing and delivery still need their own quantities and scope. The example does not recommend a slab thickness or mix.
Keep a small calculation record
Write down the drawing revision, dimensions, units, waste allowance and rounding rule beside the result. A change from feet to metres or from one-floor area to total area can explain a large difference without any price change. The area guide and quotation checklist help reconcile those differences.
A practical estimating sequence
- Freeze the drawing revision and write down how area is measured.
- Separate quantities from rates so either can be updated without hiding the other.
- Reconcile concrete, reinforcement and masonry subtotals with the project-wide allowance.
- Record waste, tax, delivery and contractor-overhead treatment.
- Ask a qualified local professional to review safety-critical quantities and specifications.
This sequence mirrors the logic of formal procurement documents: drawings, specifications, schedules and quantities work together. One headline number cannot replace them.
Sources and verification
- Pakistan Engineering Council — Bidding Documents ImplementationOfficial context for project-specific tender data, schedules, specifications, drawings and bills of quantities.
- Pakistan Engineering Council — Standard bidding document for civil worksContract-document context for rates, risks, contingencies and Bill of Quantities pricing.
- Pakistan Engineering Council — Building Code of Pakistan 2021National building-code context for safety, administration, structural work and the authority having jurisdiction.
Sources establish the technical context. Calculator planning assumptions remain separately labelled and should be checked for the specific project.
One calculator covers every plot size
The main cost calculator accepts any marla or kanal value and lets you select the conversion shown on your project documents, so the same method works for standard and non-standard plots.