Smith System® Book Trucks are a handy companion to the library or classroom, carrying up to 400 lb of books, paper and projects. They move easily through aisles on soft-tread, dual wheel casters that won’t shimmy like single wheels. Standard casters are 4″ soft-tread dual-wheel casters, available casters include; optional 5″ dual wheel or 5″ single-wheel casters. The Three Sloping Shelf booktruck is available in 14″d x 24″w (Model 21096) or 14″d x 36″w (Model 21092). Choose Model 21094 for a 14″d x 36″w Three Sloping Shelf booktruck equipped with 3 book supports (Book Supports set of 3 – Model 21105). Booktruck available in 11 powder coat paint finish colors.Manufactured from 18 gauge steel tube framing, the Three Sloping Shelf booktruck can carry up to 400lbs of books. These versatile school carts can be used in a variety of school settings, including libraries, classrooms, gyms and even administrative offices. If your load will exceed 400lbs, check out our Gorilla trucks, which can carry up to 600lbs. In addition, we also offer booktrucks with flat shelves.