To accurately measure an L-shaped outdoor patio couch for a custom tarp, segment the furniture into two distinct rectangular blocks (Long Side and Short Side) to capture six critical spatial vectors: Overall Left Length, Overall Right Length, Left Depth, Right Depth, Inner Left Length, and Inner Right Length. Deduct 1 to 2 inches from the total height for ground clearance to prevent moisture trapping. Spatial Segmentation and Geometric Breakdown Segmenting the L-shape prevent