Roofing Blog

Calculators, Costs & DIY Roofing Tips

Welcome to the Smart Roofing Calculator blog — long-form articles on roofing calculators, material costs, DIY repair walkthroughs, and industry best practices. Topics include how to measure roof area, plywood vs OSB for decking, how many shingles for a 2,000 sq ft roof, choosing the right waste factor, roofing labor cost per square, metal roof vs shingles real-world cost comparison, roof inspection checklists, ridge cap and valley estimating, roofing nail selection, warranty types, and DIY vs hiring a pro. Every post links to the matching calculator on the site.

Working notes on estimating, ordering and installing roofs — the arithmetic behind the calculators, the mistakes that cost money, and comparisons between the materials people actually choose between.

Estimating and ordering

Materials compared

Cost and hiring

Tools and gear

Frequently asked questions

What is covered here?

The arithmetic behind the calculators, the estimating mistakes that cost money, and honest comparisons between the materials people actually choose between.

Do the posts contain affiliate links?

Some do, and those say so on the page above the recommendations. No prices, star ratings or review counts appear anywhere on this site — those live on the retailer.

Which post should I start with?

How to measure a roof area, then the waste factor guide. Between them they cover the two numbers that most often make an order come up short.

Can I reuse the figures in these posts?

Yes, with a link back. The tables are generated from published formulas and product coverage figures, and each post states its assumptions.