Dimensions Size 18" H x 12" W x 1.5" D Overall Height - Top to Bottom: 18" Overall Width - Side to Side: 12" Overall Depth - Front to Back: 1.5" Overall Product Weight: 5 lbs Size 24" H x 16" W x 1.5" D Overall Height - Top to Bottom: 24" Overall Width - Side to Side: 16" Overall Depth - Front to Back: 1.5" Overall Product Weight: 6 lbs Size 30" H x 20" W x 1.5" D Overall Height - Top to Bottom: 30" Overall Width - Side to Side: 20" Overall Depth - Front to Back: 1.5" Overall Product Weight: 7 lbs Size 36" H x 24" W x 1.5" D Overall Height - Top to Bottom: 36" Overall Width - Side to Side: 24" Overall Depth - Front to Back: 1.5" Overall Product Weight: 8 lbs Size 45" H x 30" W x 1.5" D Overall Height - Top to Bottom: 45" Overall Width - Side to Side: 30" Overall Depth - Front to Back: 1.5" Overall Product Weight: 9 lbs Size 60" H x 40" W x 1.5" D Overall Height - Top to Bottom: 60" Overall Width - Side to Side: 40" Overall Depth - Front to Back: 1.5" Overall Product Weight: 12 lbs