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Are you an MEP engineer, contractor, or estimator tired of manually calculating the number of duct sheets needed for your projects? Save time and reduce mistakes with our Free Duct Sheet Calculator, designed to follow SMACNA standards. What Does This Excel Tool Do? This easy-to-use Excel calculator helps you: Estimate the total number of duct sheets for rectangular ductwork Automatically calculate duct surface area based on your input dimensions Break down required gauge thicknesses according to SMACNA standards Minimize overestimation and material waste Simple Parameters, Accurate Results Just enter these details: Duct length, width, and height Number of ducts Type of joint and seam allowance Any extras (stiffeners or reinforcements) All calculations are made in line with SMACNA duct construction standards—so your estimates are accurate and code-compliant. Automatic Gauge Selection Our calculator even suggests the right gauge thickness automatically, based on duct size and pressure class—no need to refer to SMACNA tables! Benefits: Standardizes fabrication Reduces material ordering mistakes Saves time on technical lookups Who Can Benefit? MEP Quantity Surveyors Duct Fabricators Project Engineers Procurement Teams HVAC Contractors Download the Free Calculator Click below to download your copy instantly and streamline your next duct project! Related Resources Free Ductulator – The Essential HVAC Duct Sizing Calculator