Skip to main content
Builder.Tools
ToolsPricingFind a BuilderFor TradespeopleBlog
UKUS

The complete site kit

All 60 Building & Estimating Tools for UK Trades

Search once, open instantly. Every calculator, document builder and site utility is listed below—nothing hidden behind a “show more” button.

All tools
60
Free
5
AI tools
8
Put it through a real job this week7-day Pro trial

From first measure to sent quote

Try the full job workflow for 7 days

Use a calculator, turn the result into a quote, save it against a customer and keep the job moving without typing everything twice.

Start my 7-day trialSee what Pro includes

Card required. £0 charged today, then £9/month. Cancel before day 8 and pay nothing.

Your test drive

£0 today

7 days
every tool

  1. 1Price a live jobUse your own measurements.
  2. 2Build and send the quoteKeep every item together.
  3. 3Decide after using itCancel before renewal.
Cloud sync No watermark

Ready to try it on a real job?

Use every Builder Tool free for the next 7 days

Unlock all calculators, quotes, invoices, AI documents and cloud saves. It is £0 today, then £9/month, and you can cancel before renewal.

Start my 7-day trialBuild a quote first
Builder.Tools

Practical construction calculators and project tools. 5 tools stay free; the full quotes, jobs and invoices workspace is localized for UK firms.

Tools

  • Calculators
  • AI-Powered
  • Utilities

Company

  • Find a Builder
  • Join Our Network
  • Trade Partners
  • For US Contractors
  • Our Story
  • Blog
  • Help & Support
  • Contact

Legal

  • Terms of Service
  • Privacy Policy
  • Cancellation & Refunds
  • Disclaimer
  • Affiliate Disclosure

© 2026 Builder Tools. All rights reserved.

Need a hand? Help & Support · contact@builder.tools

Built in the UK. Now building for US contractors too.

Showing 60 of 60 tools

Select any tool to open it

Cable Lookup

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.
CalculatorsElectrical
Pro

Concrete

Calculate concrete volumes for slabs, footings, columns, and steps. Get mix ratios and material quantities.
CalculatorsStructural
Free

VAT & CIS

Calculate VAT at 20% and CIS tax deductions for construction industry subcontractors.
UtilitiesGeneral Building
Free

Profit Checker

Check whether a quote covers materials, labour, overheads, contingency, and your target profit margin before you send it.
CalculatorsDocuments
Pro

Roofing

Calculate roof area, tiles needed, battens, felt, and ridge tiles for pitched roofs.
CalculatorsRoofing
Free

Spindle Spacing

Calculate equal spindle and end gaps against a designer-chosen clear-gap maximum. The complete guarding still needs verification.
CalculatorsCarpentry
Pro

Downlights

Calculate optimal downlight spacing and positioning for any room size.
CalculatorsElectrical
Pro

Steel Weight

Calculate indicative section weights and create a steel schedule. This is not structural member sizing.
CalculatorsStructural
Pro

Stone, Blocks & Bricks

Calculate stone, bricks, blocks, and mortar needed for walls. Supports stone walling, standard UK brick and block sizes.
CalculatorsBricklaying
Pro

StoneSmart

Calculate stone volumes and costs with labour and markup. Toggle m³/ft³. Save and load jobs to continue later.
CalculatorsStone Masonry
Pro

Fencing

Calculate fence panels, posts, concrete, and gravel boards for any fence run.
CalculatorsLandscaping
Pro

Patio

Estimate patio paving, compacted sub-base, bedding materials, jointing products, and excavation waste.
CalculatorsLandscaping
Pro

Plaster & Render

Calculate plaster and render quantities for walls and ceilings. Multi-coat support.
CalculatorsPlastering
Pro

Weight

Calculate weights of common construction materials by volume or dimensions.
CalculatorsGroundworks
Pro

Quote Generator

Generate professional construction quotes and estimates with AI. Customizable templates.
AI-PoweredDocuments
Online · Pro

RAMS Generator

Generate Risk Assessments and Method Statements (RAMS) with AI for construction projects.
AI-PoweredDocuments
Online · Pro

Lift Planner

Plan crane lifts with AI assistance. Calculate load charts, radius, and safety factors.
AI-PoweredDocuments
Online · Pro

Plumbing Certs

Generate plumbing compliance certificates with AI. Covers unvented hot water, gas safety, and more.
AI-PoweredDocuments
Online · Pro

T&Cs

Build a proper set of UK builder terms — deposits, variations, unforeseen work, guarantees and late-payment interest — and send them with every quote.
UtilitiesDocuments
Online · Pro

Invoice

Create a review-ready UK invoice with transparent VAT, CIS deduction and domestic reverse-charge fields, plus quote conversion.
UtilitiesDocuments
Pro

Rates

Your day rates, material prices and hire costs — saved once, used in every quote and estimate.
UtilitiesDocuments
Pro

Timesheet

Track work hours for employees. Calculate weekly totals, overtime, and pay.
UtilitiesSite Management
Pro

Holiday Tracker

Track regular and irregular-hours leave using real work patterns, leave-year boundaries and transparent bank-holiday treatment.
UtilitiesSite Management
Pro

Sign Document

Place a drawn or typed signature image onto a PDF in your browser. This is not identity verification or a digital-signature audit service.
UtilitiesDocuments
Pro

Merchant Locator

Find nearby builders merchants including Toolstation, Screwfix, Travis Perkins, and Jewson.
UtilitiesOther
Pro

Unit Converter

Convert between metric and imperial units — length, area, volume, weight, temperature, pressure and speed.
UtilitiesMeasurements
Free

Stair Geometry

Create a straight private-stair set-out and compare rise, going, pitch and 2R+G with Approved Document K guidance for England.
CalculatorsStructural
Pro

Scaffolding

Calculate scaffolding hire costs for independent, birdcage, and tower scaffolds. Erection, hire, and dismantle pricing.
CalculatorsStructural
Pro

Mileage Tracker

Log business journeys and compare them with the date-versioned HMRC approved mileage payment benchmark. This does not calculate a cash tax refund.
UtilitiesSite Management
Pro

Permitted Development

Check if your project falls under permitted development rights. Guided Q&A based on GPDO 2015 rules.
UtilitiesHeritage & Planning
Pro

Snag List

Create and manage snagging lists for construction projects. Track items with photos, priorities, and status updates.
UtilitiesDocuments
Pro

Working at Height

Limited visual prompt lists for ladders, scaffolds, MEWPs, and harnesses, with planning and competent-inspection warnings.
UtilitiesCompliance
Pro

Drainage Fall

Check bounded Approved Document H minimum falls using actual internal pipe size, design flow, connected WCs and run length.
CalculatorsGroundworks
Pro

Decking

Calculate decking boards, joists, noggins, posts, and fixings needed. Full materials list ready for the merchant.
CalculatorsLandscaping
Pro

Catnic Lintel

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.
CalculatorsStructural
Pro

Timber Span Check

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.
CalculatorsStructural
Pro

Party Wall

Check if your project triggers the Party Wall etc. Act 1996. Guided Q&A covering Sections 1, 2, and 6.
UtilitiesHeritage & Planning
Pro

CDM Triage

Triage five common CDM 2015 triggers: F10, principal roles, the construction phase plan and health and safety file.
UtilitiesCompliance
Pro

Asbestos Checklist

Pre-work asbestos awareness checklist. Identifies likely ACM locations based on building age and work type.
UtilitiesCompliance
Pro

Variation Order

Create professional variation orders on site. Record scope changes with costs and get client sign-off before work starts.
UtilitiesDocuments
Pro

Site Setup

First-day-on-site checklist covering welfare, safety, signage, and fire requirements. Generates a sign-off record.
UtilitiesCompliance
Pro

Floor Plan

Create a concept room-layout sketch by placing rooms, doors and windows. The exported PNG is not a measured or scaled construction drawing.
UtilitiesOther
Pro

Gravel & Aggregate

Calculate tonnes of gravel, MOT, sand, topsoil, and aggregate needed. Built-in bulk densities, multi-area support, and bulk bag counts.
CalculatorsGroundworks
Pro

Tile Calculator

Calculate tiles, adhesive, and grout for floors and walls. Supports straight, brick bond, and diagonal layouts with wastage.
CalculatorsTiling
Pro

U-Value Estimate

Estimate an idealised layer-stack U-value and compare it with a selected current Part L limiting value. Not a compliance calculation.
CalculatorsRoofing
Pro

Gastite Lookup

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.
CalculatorsPlumbing & Heating
Pro

Voltage Drop

Calculate voltage drop using an exact public Doncaster table for named 90°C single-core copper cables. No cable selection or compliance claim.
CalculatorsElectrical
Pro

Manual Handling

Record six manual-handling prompts and route the task to the appropriate HSE assessment. This is not the MAC tool or a risk rating.
UtilitiesCompliance
Pro

Subcontractor Agreement

Generate a simple one-page subcontract agreement covering scope, rate, payment terms, CIS status, and liability.
UtilitiesDocuments
Online · Pro

Project Timeline

Build a visual Gantt-style project programme. Add tasks with durations and dependencies. Export as PDF or image for clients.
UtilitiesSite Management
Pro

Incident Report

Produce an on-site incident or injury report with RIDDOR check. Records facts, witnesses, and flags HSE reporting requirements.
UtilitiesDocuments
Pro

Damp Inspection

Record moisture observations, urgent hazards and investigation prompts without turning a symptom questionnaire into a diagnosis.
UtilitiesHeritage & Planning
Pro

Heritage Impact

Generate a structured Heritage Impact Assessment framework for listed building consent or planning applications. Follows Historic England HIA guidance and NPPF. AI drafting available.
UtilitiesHeritage & Planning
Online · Pro

Pre-App Checker

Decide whether to seek pre-application advice from the conservation officer and get a structured pre-app request framework.
UtilitiesHeritage & Planning
Pro

LBC Helper

AI-powered tool to draft supporting text for minor listed building consent applications — description of works, heritage rationale, and conservation justification.
AI-PoweredHeritage & Planning
Online · Pro

Turf & Lawn

Calculate turf rolls, topsoil, and fertiliser needed for any garden. Supports rectangle, L-shape, and circular lawns with waste allowance.
CalculatorsLandscaping
Pro

Paint

Calculate how much paint you need for any room. Accounts for doors, windows, coats, and tin sizes.
CalculatorsGeneral Building
Free

Radiator / BTU

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.
CalculatorsPlumbing & Heating
Pro

Skip Guide

Find the right skip size for your project. Select your waste type and amount to get a recommendation with approximate costs.
UtilitiesOther
Pro

CIS Certificate

Generate CIS Payment and Deduction Statements for subcontractors. Calculates deductions and produces professional PDFs with the core statement fields.
UtilitiesGeneral Building
Pro