What would be the cut size for a straight length of duct that finishes 44" long, with duct dimensions of 14 x 8, fabricated in 2 "L" pieces?

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To determine the cut size for a straight length of duct that is intended to finish at 44 inches long while accounting for the dimensions and the fabrication method, it's crucial to understand how ductwork is assembled.

In this scenario, the finished length of the duct is 44 inches. However, when constructing ductwork from flat pieces, allowances must be made for the overlap and the edges required for joining the pieces together. When two "L" shaped pieces are used, they typically include flanged edges that increase the required length of the flat layout.

Given the dimensions of the duct, 14 x 8, the calculation for the cut size would involve adding enough length to ensure that the finished duct meets the specified dimension after assembly. In this case, with a finished length of 44 inches, the required cut size must be slightly greater to accommodate the assembly process.

Common practice in duct fabrication is to add 1 inch to account for seams and connections. So, starting with the 44-inch finished length, one inch is added, bringing the total to 45 inches for the cut size. The width is derived from the width of the duct, considering the dimensions provided, which is typically 23 ¼ inches for a duct with those

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