Bretford makes several variants of booktrucks and 'mobile utility trucks', as they're affectionately denoted, and they come in all sorts of sizes and colors to suit your demands. Bretford's aim is to deliver you a device which is well constructed, versatile enough to suit your needs and of course economically sensible.

The R227 has one side with support walls and two shelves slanted toward it, and thus is designed for use against a wall. The shelves have plenty of space between them for use with large binders & such.