You can install into 4-tier vertical, or 2 tier in two columns horizontal. Tier to tier height is 12.2 inches.
The pocket width is adjustable and can range from 4.24 inches to 8.59 inches or wider (simply use less dividers), accommodating even wider materials if needed [Clear Plexiglass 1/8 Thick] This acrylic rack magazine holder is made of 0.12 inches thick clear acrylic. Great workmanship [Wall mounting] Wall-mount screws and anchors are included. You can also search "10166 magazine literature rack flyer travel center hosptial docter fixturedisplays" on youtube to locate the video.