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.

Use this Rail Set to create a Universal Bench that is 20″-wide (508mm) and/or 20″-deep (508mm)
Universal Bench Rail Sets available in 14″, 20″, 28″, 44″, and 64″ (355mm, 508mm, 711mm, 1117mm, 1625mm) to accommodate different project needs
Rail Sets help you create a custom Universal bench in 30 possible sizes, from 14″ x 14″ (355mm x 355mm) to 64″ x 64″ (1625mm x 1625mm)
Made from heavy-duty 16-gauge steel

Description
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 20″ Rail Set you have selected can you help you create a Universal Bench that is 20″-wide and/or 20″-deep. Made from heavy-duty, 16-gauge steel, these durable rails are built to last for years to come.