This image shows the bottom of the rack with measurements. The following are the measurements:
Distance from side of rack to center of mounting bracket: 112.9 mm
Distance between centers of mounting brackets, from side to side: 374.2 mm
Distance between centers of mounting brackets, from front to rear: 1120.50 mm
Distance between centers of rear casters, from side to side: 407.14 mm
Distance between centers of front casters, from side to side: 426.58 mm
Distance between centers of front casters to centers of rear casters: 828.63 mm
Distance from rear of rack to back of cutout: 330 mm
Distance from side of rack to side of rear cutout: 160 mm
Distance from side to side of cutout: 281 mm
Distance from center of rear leveling foot to rear caster: 20.64 mm
Distance from center of front leveling foot to center of rear leveling foot: 1011.00 mm
Distance from front mounting bracket to rear mounting bracket: 1023.00 mm
Distance from rear mounting bracket to mount point: 65.00 mm