Precision Reports.
No Guesswork.
LoadSpec delivers ACCA-compliant Manual J, S, and D reports for contractors, builders, and homeowners who need accuracy the first time. Built on Wrightsoft. Backed by experience.
Who We Serve
HVAC Contractors
Get accurate load reports without tying up your technicians. We handle the Manual J, S, and D so you can stay on the job site.
Request A Quote →Home Builders
Secure accurate load calculations for new construction, early in the process, to avoid costly redesigns and code issues at inspection.
Request A Quote →Homeowners
Verify your system is properly sized before you buy, replace, or upgrade. Know exactly what your home needs, not what's convenient to sell.
Request A Quote →Three Reports. One Source.
Manual J
Load Calculation Report
Determine precisely how much heating and cooling your home requires using ACCA Manual J 8th Edition methodology. The foundation of every properly designed HVAC system.
Learn more →Manual S
Equipment Selection Report
Match the right equipment to your load calculation. Not all equipment is built the same. Manual S ensures your selected system actually meets the home's requirements.
Learn more →Manual D
Duct Design Report
Size ductwork correctly for optimal airflow to every room. Eliminate hot and cold spots. Ensure static pressure and CFM targets are met throughout the system.
Learn more →Why LoadSpec
Calculated precision. Not guesswork.
Every report LoadSpec delivers is produced using ACCA-approved Wrightsoft software, the industry standard for residential load calculations. No rule-of-thumb sizing. No padding for uncertainty. Just accurate calculations your contractors and customers can rely on.
- ACCA-approved Wrightsoft software on every report
- Manual J 8th Edition compliant
- Only AHRI-approved equipment matchups for Manual S
- Detailed and easy-to-read report formats
- Volume pricing available for builders and contractors