Roofing Calculator
Open the RenoMetric resource for this project.
Project topic hub
Roofing, Deck & Fence Calculators
Roof area, shingles, roofing materials, deck boards, fence posts and spacing resources for early project planning.
Choose a project
Calculators and planning pages
Start with the page closest to the job you are estimating, then use the related working core calculator for the actual numbers.
Deck Calculator
Open the RenoMetric resource for this project.
Deck Project Planner
Open the RenoMetric resource for this project.
Fence Calculator
Open the RenoMetric resource for this project.
Start with the answer you need
These pages answer a specific planning question first, then connect the explanation to the right calculator and the checks that affect the final purchase.
How do I measure roof area?
Measure roof planes and apply pitch before estimating squares and accessory materials.
How many fence posts do I need?
Use total run, gates, corners, ends and the selected post spacing.
How do I calculate deck boards?
Convert deck area into rows and linear footage using board width, gap and waste.
Practical guides
Measure and plan better.
How to Estimate Roof Area from a Simple Gable Roof
Understand the footprint-and-slope approach used for early roof-area planning on a simple gable roof.
Roof Pitch Factor Guide
Learn what a roof pitch factor represents and why it converts horizontal plan area into sloped roof surface area.
Fence Post Spacing: How to Plan Sections
Turn total fence run into planning sections while keeping maximum spacing, corners and gates visible as separate decisions.
Deck Board Spacing and Quantity Planning
Understand how board face width and gap affect deck-board rows and total linear-foot planning.
How Many Fence Posts Do I Need?
Estimate fence posts from total run, maximum spacing, corners, ends and gates.
Roof Shingle Waste and Bundle Planning Guide
Convert roof surface area into squares and bundles while accounting for valleys, hips, cuts and product coverage.
Deck Material Waste Planning Guide
Plan deck-board waste from board length, layout direction, stairs, picture framing and offcuts.
How to use this topic hub
Measure the real project first, choose the resource closest to the work you are planning, then replace generic assumptions with exact product coverage, yield, package size or spacing guidance from the supplier. RenoMetric is designed for transparent planning rather than hidden assumptions.
Planning only: final quantities can change with site conditions, installation method, product specifications and local requirements.