Roofing, Siding and Gutter Size Calculator
Free roofing tool

Roofing, Siding and Gutter Size Calculator

Enter your measurements to see roof squares and shingle bundles, siding area and gutter lengths to plan for.

These tools give planning-level estimates from typical values and the details you enter. They are not quotes or engineering, legal, safety or insurance advice, and results depend on your actual roof, materials, access and choices. Only a conversation and a roof inspection can confirm what a project needs, and we give you a written estimate before work begins.

How it works

Four quick steps.

  1. 01

    Pick a starting point

    Each preset loads a typical roof, house or gutter run.

  2. 02

    Choose roof, siding or gutters

    The inputs change with the project type.

  3. 03

    Enter your measurements

    Footprint and pitch for roofs, wall length and height for siding, eave length for gutters.

  4. 04

    Read the summary

    See squares, bundles, underlayment, siding area, gutter lengths and downspouts.

Tips

  • Roof area is larger than the footprint, and steeper pitches add more.
  • Add a little extra for waste at hips, valleys and cuts.
  • We turn measurements into a written scope and material list.
Questions

About this tool.

Is this exact?

No. Complex roofs, dormers and waste factors change quantities. It is a planning estimate.

What is a roofing square?

A hundred square feet of roof surface.

Does it include siding and gutters?

Yes. Pick siding or gutters in the project type menu.

Free Estimate

Ready for a roof you can stop worrying about?

Call us and describe your roof, siding or gutters. We will look at your property, talk through options and give you a clear written estimate.

Call NowFree Estimate