Construction calculators for concrete, rebar, cement, excavation, asphalt, tile, paint, roofing, footing, steel weight, unit conversion and more — designed for contractors, builders, engineers and site teams.
Builder Toolkit is a fast, reliable and easy-to-use construction calculator and estimating app designed for contractors, builders, engineers, estimators, site supervisors and construction professionals.
Designed with large touch targets, a high-contrast interface and practical field workflows, Builder Toolkit is built for real construction environments.
Practical calculator tools for common construction estimates, material planning and field checks.
Calculate concrete quantities for slabs, walls, columns, beams and footings.
Estimate steel weight using rebar size, length and quantity.
Estimate cement bag requirements and volume needs.
Estimate brick and block quantities for wall masonry.
Calculate cut, fill and volume requirements for excavation work.
Estimate asphalt volume and material requirements.
Use presets or custom density values for material calculations.
Convert length, area, volume and weight units instantly.
Estimate tile quantities for floors, walls, waste allowance and purchase planning.
Calculate paint requirements for interior and exterior surfaces using area and coats.
Estimate roofing area, pitch-based requirements and material quantities.
Calculate footing volume for common round, square and rectangular footing work.
Estimate steel weight for rebar and common steel materials based on size and length.
Builder Toolkit supports metric units, imperial units and mixed unit workflows commonly used across Canada and the USA.
Instant conversions. Accurate results.
Get more than just calculations. Builder Toolkit helps estimate practical material requirements for real construction work.
High-contrast dark interface, easy-to-read typography and large glove-friendly buttons.
Quickly revisit previous estimates without re-entering dimensions, quantities or material values.
Fast calculations with minimal input, optimized for jobsite use and battery efficiency.
Contractors, builders, engineers, estimators, site supervisors, students and DIY projects.
Future Builder Toolkit updates will focus on smarter estimating, calculation history, material takeoffs, estimate folders and professional PDF reporting.
Organize related calculations by job name, address or estimate without turning Builder Toolkit into project management software.
Export concrete, rebar, paint, tile, roofing and material takeoff summaries for sharing or ordering.
Add material rates, waste factors and quantities to calculate quick budget-level estimates.
Reopen previous calculations, duplicate estimates and adjust values without starting from scratch.
Set default waste allowances for concrete, tile, paint, roofing and other materials.
Add more trade-specific calculators while keeping the app fast, offline and easy to use.
Helpful articles for contractors, estimators and construction professionals.
A practical guide for estimating concrete volume, waste allowance and ready-mix needs.
Understand bar size, length, quantity and weight before ordering material.
A simple explanation of cement, concrete, mix planning and material estimating.
See why offline access matters in basements, rural sites and low-signal areas.
Built for the Field. Calculate materials faster, convert units instantly, save estimate history and export calculation summaries on-site — even without internet access.
