CalcShed
Free web-based calculators for construction, electrical work, concrete, roofing, landscaping, and home improvement, with practical estimating tools, transparent formulas, unit support, and explanatory guidance.
Construction Daily Log and Change Order Software | DailyLogsPro
DailyLogsPro helps subcontractors document jobsite work, protect billing, and move field events into priced, signed change orders.
Construction Calculator
Free construction calculators for concrete, stairs, feet and inches, board feet, rebar, brick, roofing and general materials. Transparent formulas, metric and imperial support, and no signup.
EstimatorSuite - 42 free construction calculators for contractors
42 free online construction calculators for contractors and builders — concrete, roofing, HVAC, drywall, excavation, fencing and more. No signup required, works on desktop and mobile. The calculation engine is open source MIT on npm as…
FlatRateKit
Free HVAC flat-rate pricing calculators and price book templates for small residential service contractors.
SafetyStack — AI-assisted RAMS for UK construction
SafetyStack helps UK trades and small contractors draft risk assessments and method statements (RAMS) using AI-assisted document preparation. Export drafts as PDF or DOCX, and sign in to save jobs and issued revisions in My RAMS. Free early access…
BuilderCalc
Web-based calculators covering construction materials, mathematics, unit conversion and everyday calculations. No sign-up required.
SurfaceMeasure - Satellite measuring and quoting for exterior contractors
Built for paving, sealcoating, snow, pressure washing and landscaping contractors. You trace the lot on satellite imagery, get the square footage, price it at your rate and send a branded quote the customer can accept online, without driving out to…