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A Manual J calculation is an industry-standard method for determining the heating and cooling loads of a building. It's a detailed analysis of your home or building that tells you exactly how much heating and cooling capacity you need. Learn more in our complete guide to Manual J.

All three work together: Manual J determines your heating and cooling loads, Manual D designs the ductwork to distribute that air properly, and Manual S recommends the specific equipment that matches your loads. We include all three in every order for comprehensive design documentation.

Standard turnaround is 5 business days. We also offer 48-hour rush service at no additional charge. Fast delivery doesn't mean rushed quality—every report receives the same rigorous review and attention to detail.

We need your project plans (blueprints), building details (wall construction, insulation, windows, doors), and location information. Our contact form will walk you through what we need. If you have questions about your specific project, just ask—we're happy to clarify.

Contractor+ is our free membership program. Members get 5% off every order, exclusive access to our ordering portal, educational resources, priority support, and access to rush service. Join for free at contractor-plus.html.

Under 2,000 sq ft is $250 flat rate. 2,000–4,000 sq ft is $0.15/sq ft. Over 4,000 sq ft is $0.17/sq ft. All prices include Manual J, D, and S. Volume discounts or Contractor+ membership savings apply (whichever is greater — they do not stack). See our pricing page for details.

We serve six western states: Idaho, Oregon, Washington, Arizona, New Mexico, and Utah. We specialize in western climate zones and building codes. See our service areas page for regional details.

Yes. 48-hour rush service is available at no extra charge. Just note your need for rush service in your project details when you contact us. Same quality and detail as our standard service—just faster delivery.