original: It has a depth of approximately 18 inches (46 cm) on the sides and 30 inches (76 cm) in the center.
simplifications: it is about 18 inches deep on the sides and 30 inches deep in the middle. It is around 18 inches deep on the sides and 30 inches in the center. It is approximately 18 inches (46 cm) deep on the sides and 30 inches (76 cm) at the center. It is about 18 inches (46 cm) deep on the sides. In the center, it is about 30 inches (76 cm) deep. The depth is about 18 inches (46 cm) on the sides and 30 inches (76 cm) in the center. It is about 18 inches deep on the sides and 30 inches deep in the center. It is about 18 inches (46 cm) deep on the sides and 30 inches deep (76 cm) in the center. Its depth is approximately 18 inches on the sides and 30 inches in the center. IT's depth is 18 inches on the sides and 30 in the center. It is approximately 18 inches (46 cm) deep on the sides and 30 inches (76 cm) deep in the centre.