60 building tools — 6 free forever, the lot for £9/month
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Add labour, materials, exclusions and your customer details, then keep the quote with the job instead of losing the numbers in a note.
Preliminary lookup for named Doncaster 70°C multicore copper cables using published current-capacity and voltage-drop data. Final circuit design remains with a competent electrician.
Calculate optimal downlight spacing and positioning for any room size.
Calculate voltage drop using an exact public Doncaster table for named 90°C single-core copper cables. No cable selection or compliance claim.
Calculate concrete volumes for slabs, footings, columns, and steps. Get mix ratios and material quantities.
Calculate indicative section weights and create a steel schedule. This is not structural member sizing.
Create a straight private-stair set-out and compare rise, going, pitch and 2R+G with Approved Document K guidance for England.
Calculate scaffolding hire costs for independent, birdcage, and tower scaffolds. Erection, hire, and dismantle pricing.
Check an engineer-supplied total UDL against Catnic's February 2026 TS90/100, TH90/100 and TX90/100 table for one defined cavity-wall build-up.
Capture the inputs needed for a current timber span-table check and identify when a project-specific structural design is required. No section size is inferred.
Calculate VAT at 20% and CIS tax deductions for construction industry subcontractors.
Calculate plaster and render quantities for walls and ceilings. Multi-coat support.
Calculate weights of common construction materials by volume or dimensions.
Estimate an idealised layer-stack U-value and compare it with a selected current Part L limiting value. Not a compliance calculation.
Calculate how much paint you need for any room. Accounts for doors, windows, coats, and tin sizes.
Generate CIS Payment and Deduction Statements for subcontractors. Calculates deductions, produces HMRC-compliant PDFs with all required fields.
Check whether a quote covers materials, labour, overheads, contingency, and your target profit margin before you send it.
Generate professional construction quotes and estimates with AI. Customizable templates.
Generate Risk Assessments and Method Statements (RAMS) with AI for construction projects.
Plan crane lifts with AI assistance. Calculate load charts, radius, and safety factors.
Generate plumbing compliance certificates with AI. Covers unvented hot water, gas safety, and more.
Build a proper set of UK builder terms — deposits, variations, unforeseen work, guarantees and late-payment interest — and send them with every quote.
Create a review-ready UK invoice with transparent VAT, CIS deduction and domestic reverse-charge fields, plus quote conversion.
Your day rates, material prices and hire costs — saved once, used in every quote and estimate.
Place a drawn or typed signature image onto a PDF in your browser. This is not identity verification or a digital-signature audit service.
Create and manage snagging lists for construction projects. Track items with photos, priorities, and status updates.
Create professional variation orders on site. Record scope changes with costs and get client sign-off before work starts.
Generate a simple one-page subcontract agreement covering scope, rate, payment terms, CIS status, and liability.
Produce an on-site incident or injury report with RIDDOR check. Records facts, witnesses, and flags HSE reporting requirements.
Check whether a quote covers materials, labour, overheads, contingency, and your target profit margin before you send it.
Your day rates, material prices and hire costs — saved once, used in every quote and estimate.
Track work hours for employees. Calculate weekly totals, overtime, and pay.
Track regular and irregular-hours leave using real work patterns, leave-year boundaries and transparent bank-holiday treatment.
Log business journeys and compare them with the date-versioned HMRC approved mileage payment benchmark. This does not calculate a cash tax refund.
Build a visual Gantt-style project programme. Add tasks with durations and dependencies. Export as PDF or image for clients.
Calculate equal spindle and end gaps against a designer-chosen clear-gap maximum. The complete guarding still needs verification.
Create a straight private-stair set-out and compare rise, going, pitch and 2R+G with Approved Document K guidance for England.
Capture the inputs needed for a current timber span-table check and identify when a project-specific structural design is required. No section size is inferred.
Calculate equal spindle and end gaps against a designer-chosen clear-gap maximum. The complete guarding still needs verification.
Calculate stone volumes and costs with labour and markup. Toggle m³/ft³. Save and load jobs to continue later.
Calculate weights of common construction materials by volume or dimensions.
Calculate fence panels, posts, concrete, and gravel boards for any fence run.
Calculate paving slabs, sand, cement, and sub-base materials for patios and landscaping.
Calculate decking boards, joists, noggins, posts, and fixings needed. Full materials list ready for the merchant.
Calculate turf rolls, topsoil, and fertiliser needed for any garden. Supports rectangle, L-shape, and circular lawns with waste allowance.
Calculate weights of common construction materials by volume or dimensions.
Check bounded Approved Document H minimum falls using actual internal pipe size, design flow, connected WCs and run length.
Calculate tonnes of gravel, MOT, sand, topsoil, and aggregate needed. Built-in bulk densities, multi-area support, and bulk bag counts.
Find nearby builders merchants including Toolstation, Screwfix, Travis Perkins, and Jewson.
Create a concept room-layout sketch by placing rooms, doors and windows. The exported PNG is not a measured or scaled construction drawing.
Find the right skip size for your project. Select your waste type and amount to get a recommendation with approximate costs.
Check if your project falls under permitted development rights. Guided Q&A based on GPDO 2015 rules.
Check if your project triggers the Party Wall etc. Act 1996. Guided Q&A covering Sections 1, 2, and 6.
Record moisture observations, urgent hazards and investigation prompts without turning a symptom questionnaire into a diagnosis.
Generate a structured Heritage Impact Assessment framework for listed building consent or planning applications. Follows Historic England HIA guidance and NPPF. AI drafting available.
Decide whether to seek pre-application advice from the conservation officer and get a structured pre-app request framework.
AI-powered tool to draft supporting text for minor listed building consent applications — description of works, heritage rationale, and conservation justification.
Limited visual prompt lists for ladders, scaffolds, MEWPs, and harnesses, with planning and competent-inspection warnings.
Triage five common CDM 2015 triggers: F10, principal roles, the construction phase plan and health and safety file.
Pre-work asbestos awareness checklist. Identifies likely ACM locations based on building age and work type.
First-day-on-site checklist covering welfare, safety, signage, and fire requirements. Generates a sign-off record.
Record six manual-handling prompts and route the task to the appropriate HSE assessment. This is not the MAC tool or a risk rating.
Conservative lookup of Gastite Table 9.1 for its own CSST carrying natural gas under the published fixed conditions. For competent Gas Safe engineers only.
Create a rough early-stage heating-load placeholder. Final emitter selection requires room-by-room heat-loss design and manufacturer output data at the actual system temperatures.