Plan the work
Carry the estimate into the job plan.
The useful result is not just the number. It should support owners, programme assumptions and delivery readiness.
Workflow
Area
Painting
Paint Coverage Calculator.
Estimate paint litres from area, coverage rate, coats and waste allowance. Free online tool for UK construction and trade teams.
Connected calculator
Live estimate
Use the result as a planning estimate, then turn it into tasks, templates, evidence and delivery records.4Inputs
2Results
3Trade tags
Estimate In Product
Put the calculation beside the workflow it informs.
Paint Coverage Calculator is a quick way to test the number. Zektrx gives that number a route into planning, materials, evidence and reporting once the work starts moving.
1
Plan the work
Area
2
Check materials
Paint required
3
Report the decision
Project Management
Check materials
Turn quantities into stock and purchase context.
Material estimates can connect to stock checks, reservations, purchasing notes and job-linked records.
Workflow
Paint required
Report the decision
Keep assumptions visible after the calculation.
Saved outputs can support reports, handover packs, client review and repeatable estimating habits.
Workflow
Project Management
m2
m2/litre
coats
%
Instant Results
Paint required
11.0litres
Estimated litres including waste.
Total coated area
100.0m2
Area multiplied by coats.
Estimate To Evidence
Make the result useful beyond the screen.
A calculator result is most useful when it feeds the job plan, material checks and team briefing that follow the estimate.
Measure the work
Use the estimate as a planning input for scope, labour, equipment and site readiness.
Plan materials
Turn quantities into stock checks, purchasing notes and job-linked material records.
Brief delivery
Give teams the assumptions, limits and checks behind the number before work starts.
Explanation
What this calculates
The surface area is multiplied by coats, divided by product coverage and adjusted for waste.
Formula
Litres = area x coats / coverage rate x (1 + waste %)
Inputs are validated on screen and converted where unit options are available.
Worked Example
Example result
50 m2 at 10 m2/litre with 2 coats and 10% waste needs about 11 litres.
Knowledge Journey
Learn, use, then automate.
1. Learn
GuideStock/materials
Construction materials tracking guide
A practical guide to tracking construction materials from supplier and purchase order through delivery, allocation, use and evidence.
GuideStock/materials
Contractor stock management checklist
A practical stock management checklist for contractors tracking materials, suppliers, purchase orders, job allocations and evidence.
GuideStock/materials
Job-linked materials evidence for contractors
How contractors can link materials evidence to jobs, including purchase orders, delivery notes, photos, stock records and completion packs.
2. Use
CalculatorPlumbing
Pipe Lagging Calculator
Estimate pipe lagging length from pipe run, repeated runs and waste allowance. Free online tool for UK construction and trade teams.
CalculatorMechanical
Ductwork Material Calculator
Estimate ductwork sheet material from duct surface area, material rate and waste allowance. Free online tool for UK construction and trade teams.
CalculatorElectrical
Electrical Cable Length Calculator
Estimate cable length from measured runs, cable count and waste allowance. Free online tool for UK construction and trade teams.
3. Automate
Featureproject management
Construction Project Management Software
Plan projects, coordinate teams and keep actions, evidence and reports visible.
Featurefacilities management
Facilities Maintenance Software
Track planned and reactive maintenance records, actions and evidence.
Featurefacilities management
Facilities Management Software
Coordinate maintenance, permits, service evidence, assets and reporting.
4. Start
Start a Zektrx workflow.
Connect resources, calculators, templates, evidence and software modules around the way your contractor team works with the 拢5 trial.
Start 拢5 TrialRelated Content
Connected calculators, templates and workflows.
Related Guides
Keep learning
GuideStock/materials
Construction materials tracking guide
A practical guide to tracking construction materials from supplier and purchase order through delivery, allocation, use and evidence.
GuideStock/materials
Contractor stock management checklist
A practical stock management checklist for contractors tracking materials, suppliers, purchase orders, job allocations and evidence.
GuideStock/materials
Job-linked materials evidence for contractors
How contractors can link materials evidence to jobs, including purchase orders, delivery notes, photos, stock records and completion packs.
Related Calculators
Run the numbers
CalculatorPlumbing
Pipe Lagging Calculator
Estimate pipe lagging length from pipe run, repeated runs and waste allowance. Free online tool for UK construction and trade teams.
CalculatorMechanical
Ductwork Material Calculator
Estimate ductwork sheet material from duct surface area, material rate and waste allowance. Free online tool for UK construction and trade teams.
CalculatorElectrical
Electrical Cable Length Calculator
Estimate cable length from measured runs, cable count and waste allowance. Free online tool for UK construction and trade teams.
Related Templates
Document the work
TemplateCOSHH
COSHH Assessment Template
Record substances, SDS details, exposure routes, PPE, storage and emergency controls. Free, editable construction template from Zektrx.
TemplatePermits
Permit to Work Template
Control permit scope, hazards, isolations, approvals, handback and close-out checks. Free, editable construction template from Zektrx.
TemplateAccident Forms
Accident Report Form
Capture incident details, injuries, witnesses, photos, immediate actions and investigation notes. Free, editable construction template from Zektrx.
Related Features
Automate the workflow
Featureproject management
Construction Project Management Software
Plan projects, coordinate teams and keep actions, evidence and reports visible.
Featurefacilities management
Facilities Maintenance Software
Track planned and reactive maintenance records, actions and evidence.
Featurefacilities management
Facilities Management Software
Coordinate maintenance, permits, service evidence, assets and reporting.
Related Industries
Trade workflows
Industryprincipal contractors
Principal Contractors Software
Principal contractor hubs for subcontractor coordination, RAMS, permits, site records, actions and audit evidence.
Industrysteel fabricators
Steel Fabricators Software
RAMS, drawings, workshop records, install evidence and handover workflows for steel fabricators. One platform for documents, evidence and compliance.
Related Comparisons
Compare options
Comparisongeneric construction management software
Best Construction Management Software
A construction management software buyer guide for teams comparing project controls, site records, documents, compliance and contractor operations.
ComparisonProcore
Zektrx vs Procore
Compare Zektrx with Procore for contractors that need RAMS, site evidence, document control and day-to-day trade operations without enterprise complexity.
ComparisonSpreadsheets
Zektrx vs Spreadsheets
Compare Zektrx with spreadsheet-based construction admin for RAMS, site records, document control, actions, stock and reporting.
Related FAQs
Does this choose insulation thickness?
No. Select insulation thickness from the specification, thermal requirement or supplier guidance.
From Pipe Lagging Calculator
Should bends and fittings be included?
Yes. Include them in the measured run or increase the waste allowance for fittings and cuts.
From Pipe Lagging Calculator
Does this size the ventilation system?
No. It is a material allowance check, not an airflow, pressure drop or fan selection calculation.
From Ductwork Material Calculator
How should fittings be handled?
Include fittings in the measured surface area or increase the material factor to match your estimating method.
From Ductwork Material Calculator
FAQ
Calculator questions.
Where do I find coverage rate?
Use the paint manufacturer data sheet and allow for substrate, method and site conditions.
Does primer count as a coat?
Estimate primer separately when it uses a different product or coverage rate.
Next Step
Start a Zektrx workflow.
Connect resources, calculators, templates, evidence and software modules around the way your contractor team works with the 拢5 trial.