ICC's 7-foot ladder rack runway is designed to support horizontal cable running straight over-head. The 7-foot option makes it easier to handle as compared to the 10-foot option. Ladder rack runway is made of heavy-duty 16-gauge steel and is coated with a durable black-powder finish to prevent scratches. Two, 7-feet long runways come packaged in a double-layer, tough carton. The runways can be joined together using butt splices which are sold separately. The runways can also be attached to the top of a floor mount rack using a relay rack bracket which is sold separately.