This double sided metal book cart or library cart is sturdy! Designed for easy viewing and handling. Large 3" wheels, 2 are locking wheels. Carbon steel construction. Finished with black powder coat. Book cart weights 45 lbs. This metal book cart rack is a great solution for displaying books and move materials around in a library or classroom alike. Step by step assembly video instructions included. Assembly video: https://youtu.be/UHGcuWZixm8. You can also search "12079 two sided metal book cart library cart fixturedisplays Instructions" on youtube to locate the video. You can also download video by following this link: http://www.fixturedisplays.com/video/12079.AVI Dimensions: 44" tall, 30" wide, 15.4" deep. Shelves are 6.3" deep and 5.3" available when assembled (back rest takes up some space). Shelf to shelf clearance is 11.2". See diagram picture for more details.