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SMACNA Manual Helps Contractors Assess Labor Costs

The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) has released an updated edition of its "Reference Manual for Labor Units for Sheet Metal and HVAC."

The manual provides 138 tables in 30 pages of detailed commentary, and step-by-step instructions. It's based on surveys of active sheet metal and air conditioning contractors in the U.S. and Canada.

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