Simple 2' tall server rack made out of inexpensive 2x4s and 1/2" plywood (for my basement crawlspace). Includes cuts laid out on the 2x4s. Holds up to 5 x 2U servers/devices (although a taller than 2U device may be placed on the top shelf). The top shelf can also be used for other miscellaneous equipment resulting in a capacity of 4 x 2U servers/devices. Also includes measurements for screw/nail placement for securing the 2x4 cross pieces. Updated on 2/15/2013 - made 1/8" wider as it's a very tight fit at only 17 1/2" inches wide. 17 5/8" wide should allow the equipment to fit better.