Construction Calculators
Thinking about building, renovating, or just curious what materials you'll need? You're in the right spot. Pick a tool, enter a few numbers, and see results in seconds.
Choose a Tool
Concrete Calculator
Estimate volume, number of bags, cost or weight of concrete for slabs, walls, footings, and more.
Concrete Blocks Calculator
Find out how many blocks do you need and how much concrete to fill them up.
Stair Stringer Calculator
Planning stairs? Find rise, run, number of steps, and stringer length for a safe staircase.
Rafter (Roof Pitch) Calculator
Figure out rafter length, roof pitch angle, and board dimensions for various roofs.
Drywall Calculator
Determine how many sheets of drywall you need for walls and ceilings, accounting for waste.
Joist Calculator / Joist App
Calculate spacing, span, and size of floor or ceiling joists to ensure your structure is solid.
Rebar Calculator
Estimate lengths and quantities of rebar for beams, columns, slabs, or foundations.
Insulation Calculator
Work out how much insulation material you need for walls, attics, or floors.
(More calculators coming soon...)
Why Use These Tools?
Save Time & Money
Get quick, reliable estimates so you order just the right amount of materials.
Avoid Mistakes
Skip manual math errors. Our calculators guide you through typical inputs and handle formulas for you.
Plan with Confidence
Having clear numbers helps make decisions easier and budgets tighter.
All in One Place
Jump between different calculators without hunting around. Start here and dive into the specific tool you need.
How to Get Started
- Click the calculator that matches your project.
- Enter dimensions or parameters (e.g., length, width, height).
- Review results: volume, counts, costs, or material quantities.
- Adjust as needed (e.g., include extra for waste).
- Bookmark or share the link if you revisit the calculation later.
Tips for Best Results
- Double-check units (e.g., feet vs. meters) before entering values.
- If you're between two options, try both to compare material needs.
- Use linked guides (where available) for context on typical dimensions.