Technical Publications

Wendes Systems, Inc. provides technical publications pertaining to the sheet metal industry. The most significant of these publications is the recently updated "Wendes Mechanical Estimating Manual", formerly published as "Everything you wanted to know about sheet metal estimating", with expanded tables, charts and information for sheet metal and mechanical estimating. There are more than 20,000 copies of this valuable publication in circulation today. It is an invaluable manual for introducing an estimator to the basic elements of sound estimating principles. Many of the principles and formulas have been incorporated in Wendes computerized estimating systems. Download your free Manual on our download page.

Free! Wendes Mechanical Estimating Manual 


HVAC Energy Audit and Balancing Forms Manual 


Variable Air Volume Manual 2nd Edition 


HVAC Retrofits Energy Savings Made Easy