📐 JobsiteSpecs.com
Concrete Roofing HVAC Framing & Drywall

Terms of Service

Effective Date: November 1, 2026 | Last Updated: November 2026

1. Agreement to Terms

By accessing or using JobsiteSpecs.com (the "Service"), you agree to be bound by these Terms of Service. If you do not agree with any part of these terms, you are prohibited from using or accessing our calculators, charts, and documentation.

2. Construction & Engineering Disclaimer (Strict Limitation of Liability)

All calculations, material takeoffs, and cost estimates provided on JobsiteSpecs.com are for preliminary planning, educational, and estimation purposes only.

Building codes, seismic zones, wind load requirements, frost lines, and soil bearing capacities vary significantly across municipalities, counties, and US states. JobsiteSpecs does not provide certified structural engineering, architectural design, or official building inspection services.

Always verify your jobsite measurements, structural framing plans, concrete mix designs, and HVAC Manual J calculations with a licensed professional engineer (PE), registered architect, or local municipal building code inspector before purchasing materials, signing subcontractor agreements, or pouring foundations. JobsiteSpecs disclaims all liability for structural failures, building code violations, ordering shortages, excess material expenses, or project delays.

3. Material Pricing Estimates

Unit costs displayed (such as ready-mix concrete per cubic yard, asphalt shingles per bundle, 2x4 lumber per piece, and drywall sheets) reflect national unweighted retail averages. Real-time prices fluctuate based on lumber commodity indices, supply chain conditions, regional delivery fees, and retailer pricing policies (Home Depot, Lowe's, ABC Supply, local lumber yards). Users must confirm actual supplier pricing prior to budgeting.

4. Intellectual Property & Permitted Use

All original algorithms, responsive user interfaces, and technical documentation on JobsiteSpecs.com are the proprietary property of JobsiteSpecs. You are granted a limited, non-exclusive license to use the calculators for personal home improvement or commercial contractor job bidding. Automated data scraping, reverse engineering, or mass extraction of our proprietary interfaces without prior written consent is strictly prohibited.

5. Third-Party Links & Advertising

JobsiteSpecs may display third-party advertisements delivered via Google AdSense. We do not endorse, guarantee, or assume responsibility for products, contractor services, or tools offered by third-party advertisers.

6. Inquiries & Contact Information

For legal questions regarding these terms, please contact our administrative desk:

Email: contact@jobsitespecs.com

JobsiteSpecs.com

Field-grade imperial material calculators and cost estimators for US DIY homeowners, general contractors, and trade handymen.

Trade Calculators

  • Concrete Slab & Footings
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  • AC Tonnage & HVAC Load
  • Wall Studs & Drywall

Building Standards

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  • IRC Chapter 6 Wall Framing
  • ACCA Manual J Residential HVAC
  • NRCA Steep-Slope Roofing

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Disclaimer: Calculations reflect standard US building codes (IRC / ACI) and conventional waste factors. Material prices are national averages for estimation purposes only. Always consult local building inspectors and structural engineers for permitted work.