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
Working height
Health & Safety
Working at Height Calculator.
Screen work-at-height task risk using height, duration, people and control rating. 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.
Working at Height 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
Working height
2
Check materials
Risk score
3
Report the decision
Risk Assessment
Check materials
Turn quantities into stock and purchase context.
Material estimates can connect to stock checks, reservations, purchasing notes and job-linked records.
Workflow
Risk score
Report the decision
Keep assumptions visible after the calculation.
Saved outputs can support reports, handover packs, client review and repeatable estimating habits.
Workflow
Risk Assessment
m
hours
people
1-5
1 is weak, 5 is strong.
Instant Results
Risk score
4.0points
Indicative work-at-height planning score.
Review priority
Medium review priority
Indicative action priority.
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
This screening score helps prioritise competent review and safer access planning.
Formula
Risk score = height x duration x workers / control rating
Inputs are validated on screen and converted where unit options are available.
Worked Example
Example result
3 m high, 2 hours, 2 workers and control rating 3 gives a score of 4.
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
CalculatorHealth & Safety
Ladder Angle Calculator
Check ladder angle and vertical reach using ladder length and wall distance. Free online tool for UK construction and trade teams.
CalculatorHealth & Safety
Noise Exposure Calculator
Estimate daily noise exposure from sound level and exposure duration. Free online tool for UK construction and trade teams.
CalculatorHealth & Safety
HAVS Calculator
Estimate hand-arm vibration A(8) exposure from vibration magnitude and trigger time. Free online tool for UK construction and trade teams.
3. Automate
Featuresafety
Construction Health and Safety Software
Connect RAMS, incidents, training, permits, inspections and safety evidence.
Featurerams
RAMS Software
Create, review and manage RAMS, method statements, signatures and evidence.
Featurerisk assessment
Risk Assessment Software
Build controlled risk assessments with owners, review dates and linked evidence.
4. Start
Create a risk assessment in Zektrx.
Turn hazards, controls, owners, reviews and evidence into a controlled risk assessment workflow.
Create Risk AssessmentRelated 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
CalculatorHealth & Safety
Ladder Angle Calculator
Check ladder angle and vertical reach using ladder length and wall distance. Free online tool for UK construction and trade teams.
CalculatorHealth & Safety
Noise Exposure Calculator
Estimate daily noise exposure from sound level and exposure duration. Free online tool for UK construction and trade teams.
CalculatorHealth & Safety
HAVS Calculator
Estimate hand-arm vibration A(8) exposure from vibration magnitude and trigger time. 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.
TemplateRisk Assessments
Construction Risk Assessment Template
Identify hazards, people at risk, existing controls, further actions and review dates. Free, editable construction template from Zektrx.
TemplateToolbox Talks
Toolbox Talk Template
Plan briefing topics, attendance, signatures, follow-up questions and evidence. Free, editable construction template from Zektrx.
Related Features
Automate the workflow
Featuresafety
Construction Health and Safety Software
Connect RAMS, incidents, training, permits, inspections and safety evidence.
Featurerams
RAMS Software
Create, review and manage RAMS, method statements, signatures and evidence.
Featurerisk assessment
Risk Assessment Software
Build controlled risk assessments with owners, review dates and linked evidence.
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 RAMS tools
Best RAMS Software
A practical buyer guide for choosing RAMS software that supports risk assessments, method statements, revisions, signatures and site evidence.
ComparisonSafetyCulture
Zektrx vs SafetyCulture
Compare Zektrx with SafetyCulture for contractors that need inspections plus RAMS, permits, documents, actions, site diaries and construction evidence packs.
ComparisonPaper RAMS
Zektrx vs Paper RAMS
Compare Zektrx with paper RAMS and Word/PDF RAMS packs for contractors that need signatures, revisions, review evidence and site acceptance.
Related FAQs
What angle should I aim for?
Many ladder checks use the 1-in-4 rule, which gives roughly 75 degrees.
From Ladder Angle Calculator
Does this prove a ladder is safe?
No. Check ground, condition, securing, access, duration and whether safer equipment is required.
From Ladder Angle Calculator
Does this replace noise monitoring?
No. Use competent monitoring and legal guidance for exposure assessment and controls.
From Noise Exposure Calculator
What if there are multiple tools?
Assess each exposure and combine them with a suitable occupational noise method.
From Noise Exposure Calculator
FAQ
Calculator questions.
Is this a legal work-at-height assessment?
No. It is a planning prompt that supports, but does not replace, competent risk assessment.
What should high scores trigger?
Review avoidance, collective protection, access equipment, rescue planning, permits and supervision.
Next Step
Create a risk assessment in Zektrx.
Turn hazards, controls, owners, reviews and evidence into a controlled risk assessment workflow.