The Stillpoints ESS Rack is configured around the system it supports. Classic mast assemblies and cross bars form an open, low-surface-area frame, while suspended support bars carry Rail Grids, X Grids or acrylic shelves. The displayed starting price uses the least-cost complete one-shelf configuration in the March 2026 retail list: 15-inch Classic masts, 20-inch cross bars, 20-inch support bars with technology and one short acrylic shelf. Final pricing varies with rack height, width, shelf count and isolation devices.