Product information "Universal Bench Rail 1015" Universal Bench Rail Sets are sold in sets of four so you can customize your bench to fit your space, your projects, and your needs. Universal Bench Rail Sets are available in five options to accommodate a wide variety of projects needs: 14", 20", 28", 44", and 64". That means you can create a custom Universal Bench in 30 possible sizes, from 14" x 14" to 64" x 64". The 28" Rail Set you have selected can you help you create a Universal Bench that is 28"-wide and/or 28"-deep. Made from heavy-duty, 16-gauge steel, these durable rails are built to last for years to come. Technical Specifications Material Heavy-duty 16-gauge steel Hardware Square-shoulder bolts for easy, accurate assembly Includes (4) 28" (711mm) Universal Bench Rails