This sturdy wood book cart is made from maple melamine laminated MDF. Library cart measures 32" wide by 30" tall by 13" deep. Work great for class rooms, libraries, homes. Work for books, seek and find books and bigger books as well as project binders..Features two angled shelves for easy storage and display. Heavy duty casters for ease of mobility. Lower shelf is 15" tall and both shelves are 8.5" deep. Ships flat with easy to follow instructions. Load capacity on each shelf is 100 lbs. Cart weight is 37 lbs..Come with four 2" Casters. Caters are optional install. So you can use without castors to use as static shelves. Cators are 2 with brake and 2 non brake,each castor weight bearing capacity is 70 lbs. Total 280 lbs. To order replacement casters: ASIN is B00LEBF5YA.To ensure you have zero problem assemble, we have a full length video to guide you through..【Assembly Video】Video Instructions link: https://youtu.be/Yhm1fyhhv2M. You can also search "10968 Wood Book Cart Shelf Heavy Duty Wheels Castors Fixturedisplays Full Instructions" on youtube to locate the video.