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
Materials
Insulation Calculator.
Estimate insulation pack quantity from area, pack coverage and waste. 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.3Inputs
2Results
3Trade tags
Estimate In Product
Put the calculation beside the workflow it informs.
Insulation 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
Insulation packs
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
Insulation packs
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
packs/m2
%
Instant Results
Insulation packs
5.5packs
Estimated packs including waste.
Net packs
5.0packs
Pack quantity before waste.
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
Convert supplier pack coverage into packs per square metre, then apply the waste allowance.
Formula
Packs = area x packs per m2 x (1 + waste %)
Inputs are validated on screen and converted where unit options are available.
Worked Example
Example result
50 m2 at 0.1 packs/m2 with 10% waste needs 5.5 packs, so order 6 packs.
Knowledge Journey
Learn, use, then automate.
1. Learn
GuideInternational terminology
Roofing contractors United Kingdom software guide
UK roofing contractor software guide for RAMS, work at height controls, COSHH, site evidence, handover records and rollout planning.
GuideRAMS Guides
RAMS Guide for Roofing Contractors
A practical RAMS guide for roofing contractors covering access, fragile surfaces, weather, edge protection, lifting and site evidence.
GuideInternational terminology
Roofing contractors Ireland software guide
Ireland roofing contractor software guide for RAMS, work at height records, safety statements, site evidence and handover workflows.
2. Use
CalculatorRoofing
Roof Tile Calculator
Estimate roof tile quantity from roof area, tiles per square metre and waste allowance. Free online tool for UK construction and trade teams.
CalculatorMaterials
Block Calculator
Estimate block quantity from wall area, blocks per square metre and waste. Free online tool for UK construction and trade teams.
CalculatorMaterials
Brick Calculator
Estimate brick quantity from wall area, bricks per square metre and waste. Free online tool for UK construction and trade teams.
3. Automate
Featureroofing
Roofing Contractor Software
Manage roofing RAMS, work-at-height evidence, photos and handover records.
Featureproject management
Construction Project Management Software
Plan projects, coordinate teams and keep actions, evidence and reports visible.
Featurescheduling
Construction Scheduling Software
Coordinate schedules, tasks, dependencies and field readiness.
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
GuideInternational terminology
Roofing contractors United Kingdom software guide
UK roofing contractor software guide for RAMS, work at height controls, COSHH, site evidence, handover records and rollout planning.
GuideRAMS Guides
RAMS Guide for Roofing Contractors
A practical RAMS guide for roofing contractors covering access, fragile surfaces, weather, edge protection, lifting and site evidence.
GuideInternational terminology
Roofing contractors Ireland software guide
Ireland roofing contractor software guide for RAMS, work at height records, safety statements, site evidence and handover workflows.
Related Calculators
Run the numbers
CalculatorRoofing
Roof Tile Calculator
Estimate roof tile quantity from roof area, tiles per square metre and waste allowance. Free online tool for UK construction and trade teams.
CalculatorMaterials
Block Calculator
Estimate block quantity from wall area, blocks per square metre and waste. Free online tool for UK construction and trade teams.
CalculatorMaterials
Brick Calculator
Estimate brick quantity from wall area, bricks per square metre and waste. Free online tool for UK construction and trade teams.
Related Templates
Document the work
TemplateRAMS
RAMS Template
A controlled structure for task hazards, method statement steps, controls, signatures and review evidence.
TemplateToolbox Talks
Toolbox Talk Template
Plan briefing topics, attendance, signatures, follow-up questions and evidence. Free, editable construction template from Zektrx.
TemplateHR Forms
Employee Induction Form
Record worker details, company policies, site rules, competence checks and sign-off. Free, editable construction template from Zektrx.
Related Features
Automate the workflow
Featureroofing
Roofing Contractor Software
Manage roofing RAMS, work-at-height evidence, photos and handover records.
Featureproject management
Construction Project Management Software
Plan projects, coordinate teams and keep actions, evidence and reports visible.
Featurescheduling
Construction Scheduling Software
Coordinate schedules, tasks, dependencies and field readiness.
Related Industries
Trade workflows
Industryroofing
Roofing Contractors Software
Roofing contractor RAMS, work-at-height controls, permits, photos, site records and client evidence.
Industryscaffolding
Scaffolders Software
Scaffolding contractor RAMS, inspections, handover certificates, permits, photos and site evidence. One platform for documents, evidence and compliance.
Industryprincipal contractors
Principal Contractors Software
Principal contractor hubs for subcontractor coordination, RAMS, permits, site records, actions and audit evidence.
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 include ridge, hip or verge tiles?
No. Estimate fittings, trims, battens and membrane separately from the main field tile quantity.
From Roof Tile Calculator
Should I use plan area or pitched area?
Use the actual pitched roof area or a take-off value that already reflects the roof pitch.
From Roof Tile Calculator
Does this include mortar?
No. Estimate mortar separately using supplier rates or your estimator's norms.
From Block Calculator
Should I include waste?
Yes. Cutting, breakage and site handling usually need an allowance.
From Block Calculator
FAQ
Calculator questions.
Can I enter pack coverage instead?
Use packs per m2, which is 1 divided by pack coverage.
Does this check U-values?
No. Use project design and compliance requirements for thermal performance.
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.