Free Roofing Measurement, Cost & Quotation Calculator

Turn Building Measurements into Roofing Quantities, Production Cost and a Customer Quote.

For roofing manufacturers, contractors and estimators. Calculate roof area, sheet quantities, running metres, coil requirement, accessories, trusses, factory conversion, installation, transport and selling price.

Open the Roofing Calculator See What It Covers

Roofing ManufacturersConnect site measurements to factory production quantities.

Roofing ContractorsPrice sheets, accessories, installation and transport.

Field EstimatorsBreak complex roofs into measurable roof planes.

Sales TeamsConvert approved costings into professional customer quotations.

Complete roofing estimation toolkit

From Site Measurement to Customer Quotation.

Job Dashboard

Combine roofing materials, accessories, trusses, factory cost, installation, transport, overhead and profit.

Roof Measurements

Enter each roof plane and calculate roof area, sheet count and total roofing running metres.

Roofing Sheets

Calculate sheet quantities from effective cover width and required cut length.

Coil / Raw Material

Estimate coil weight and material cost from running metres, width, thickness and density.

Accessories

Cost ridge caps, valleys, barges, gutters, flashings, screws, downpipes and other items.

Truss Costing

Estimate commercial truss cost using approved spacing and design assumptions.

Manufacturing Cost

Calculate machine time, operator labour, setup, QC, packing and factory overhead.

Installation

Cost installer labour, supervision, access equipment, welfare, height premium and reroofing removal.

Transport

Price distance, trips, loading, tolls, waiting and delivery logistics.

Selling Price

Add overhead, contingency, target margin, discount and tax to the completed job cost.

Customer Quotation

Create a clean customer-facing quotation without exposing internal cost and profit calculations.

Roofing Measurement, Cost & Quotation Calculator

Turn Site Measurements into Roofing Quantities, Production Cost and a Customer Price.

Built for roofing companies that measure customer buildings, manufacture roofing sheets, supply accessories, fabricate trusses, install roofs and prepare quotations.

Current roofing job

Untitled Roofing Job

Set the customer, project type, product and currency once.

Complete roofing job economics

Build the full job from roof area to customer price.

The dashboard brings together roofing sheets, accessories, trusses, manufacturing, installation and transport. Internal costing stays separate from the customer quotation.

Roof and sheet assumptions

Total measured roof area m² Total roofing running metres from measurement module or manual Sheet selling / transfer cost per running metre GHS Roofing waste / cutting allowance %

Other job cost

Accessories total GHS Truss / framing total GHS Manufacturing / factory conversion cost GHS Installation cost GHS Transport / delivery cost GHS Other project-specific cost GHS

Commercial pricing

Project overhead % of direct job cost Contingency / complexity allowance % Target profit margin % of selling price Customer discount % Tax / levy add-on % if applicable

Roof measurements

Enter each roof plane exactly as measured on site.

For each roof plane, enter its width along the eave and the required sheet length along the slope. Add separate rows for front, rear, side, verandah, extension and other roof sections.

Important: This calculator estimates quantities from measurements supplied by the estimator. It does not replace structural design, roof-pitch verification or professional site measurement.

Roof planes

One row per roof plane or distinct sheet length.

Effective cover width of one roofing sheet metres, after side-lap Extra sheet length / eave allowance metres added to each sheet Extra quantity / cutting allowance %

Roofing sheet quantities

Estimate sheet count, running metres and roof coverage.

Total eave width to cover metres Effective sheet cover width metres Required cut length per sheet metres Number of identical roof planes Extra quantity allowance % Selling / transfer cost per running metre GHS, optional

Coil / raw material requirement

Convert roofing running metres into approximate coil weight and raw-material cost.

Use the actual coil width and material specification used by the factory. Density defaults to steel at 7,850 kg/m³ but can be changed for another metal.

Total roofing running metres m Coil / raw material width metres Material thickness mm Material density kg/m³ Factory scrap / material allowance % Raw material cost GHS per kg

Roof accessories

Cost ridges, valleys, barges, gutters, flashings, screws and other accessories.

Accessory lines

Enter quantity or total measured length and the selling or cost rate.

Truss / framing costing

Estimate truss quantity and cost from approved design assumptions.

This module is for commercial costing only. Truss member sizes, connections, spans and structural adequacy must come from an approved structural design or competent technical authority.

Building length along truss line metres Approved truss spacing metres Fabrication / supply cost per truss GHS Purlins / bracing / connectors GHS total Truss installation / erection GHS total Other truss / framing cost GHS

Manufacturing / factory conversion

Cost the factory work required to turn raw material into roofing sheets.

Total roofing running metres m Machine production rate running metres per hour Machine operating cost GHS per hour Operator / labour cost GHS per hour Setup / changeover cost GHS per job Quality control / inspection GHS per job Packaging / handling GHS per job Factory overhead % of conversion cost

Installation costing

Build the site installation cost separately from manufactured roofing materials.

Roof area to install m² Installer labour rate GHS per m² Supervision / QA / HSE GHS per project Scaffold / lifting / access equipment GHS Accommodation / subsistence GHS Old roof removal / disposal GHS, reroofing only Difficult-access / height premium % of base installer labour Other installation cost GHS

Transport & delivery

Estimate delivery and site logistics cost for the roofing job.

Return-trip distance km Vehicle running cost GHS per km Number of trips Loading / offloading GHS total Tolls / permits / parking GHS Waiting / site delay allowance GHS Other delivery cost GHS

Selling price

Convert the complete roofing job cost into a profitable customer price.

Total direct job cost GHS Project overhead % Contingency / complexity allowance % Target profit margin % of selling price Customer discount % Tax / levy add-on % if applicable Roof area m², for price/m²

Customer quotation

Create a clean customer-facing roofing quotation.

The quotation does not show internal overhead, raw-material assumptions, factory cost or profit margin.

Supplier

Roofing company name Prepared by Phone / email

Customer / site

Customer name Project / site location Quotation reference

Customer-facing quotation lines

Roofing sheets GHS Roof accessories GHS Trusses / framing GHS Installation GHS Transport / delivery GHS Other customer charge GHS Discount GHS Tax / levy GHS

Scope / notes / exclusions

Important technical boundary

Cost Estimation Is Not Structural Design.

The calculator can estimate roofing quantities and commercial truss cost from measurements and approved spacing assumptions. It does not determine whether a roof structure, truss member, connection or support is structurally adequate.

Final production and installation should still use approved site measurements, product specifications and structural information appropriate to the project.