Detailed Product Description 1.42 [36 mm] side space Lengths: 16", 20", 24", 28", 32", 36", 40", 44" and 48" [406 mm, 508 mm, 610 mm, 711 mm, 813 mm, 914 mm, 1016 mm, 1118 mm, 1219 mm]. Note: The lengths indicated in inches are approximate conversions from the metric measurements. Please see technical sheet for exact dimensions.