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Squares to Bundles (Precision Order Tool)

Contractor conversion tool to translate roof squares (including waste) into exact bundle counts for ordering. No sign up required. Free to use.

Frequently Asked Questions

Everything you need to know about this shingle bundle calculator tool.

When is a 6-nail fastening pattern legally required by the IRC?
A 6-nail pattern is mandatory in 'High Wind' zones where the design wind speed exceeds 110 mph. Using 6 nails instead of 4 increases the shingles' wind-uplift rating (often to 130 mph), protecting your company from storm-related liability claims.
How does 'High-Nailing' impact my workmanship warranty?
Nailing above the designated strip ('High-Nailing') is the leading cause of shingle blow-offs and automatically voids the manufacturer's warranty. Enforcing a strict 'Nail in the Zone' policy for your crews is the best way to prevent insurance disputes.
What is the material cost-to-risk benefit of using 3,000 nails vs. 2,000 per project?
The cost difference for an extra thousand nails is less than $30. For a roofing business, this is the cheapest 'insurance policy' available. A 6-nail pattern drastically reduces callbacks for wind damage, which can cost $500+ in labor alone.