Features:

• Post is 1˝ diameter, numerically grooved in 1˝ increments, and includes post cap and leveling bolt. 
• Assembly: numerically calibrated grooved posts, tapered plastic
  split sleeves and shelf collars combine to make shelving
  assembly a simple two-step exercise: 1) Snap the split sleeves
  onto a post over the number of your choice; and 2) slide a
  shelf collar over the split sleeves. A positive lock be tween
  shelf and post is created without the use of any tools.
• Open-wire construction promotes higher visibility, allows light
  to pass through the shelves, permits greater air circulation
  which helps reduce moisture and dust build-up, and
  increases the effectiveness of fire-suppression systems.
• Tapered split sleeves of high-temperature-resistant ABS
  plastic create a positive lock that becomes stronger as the
  load increases.
• Posts are numbered in increments of 1˝ (25mm) to ensure
  fast and level assembly.
• Leveling feet are provided to help com pen sate for uneven
  floor surfaces.
• Shelf strength: shelf mat utilizes a pincer-type design with the
  mat wire sandwiched between the two top truss wires, adding
  significant strength and distributing the entire load without
  stress and strain on the welds.

Weight capacities:

• 800 lbs. (363 kg) for shelves up to 48˝ (1219mm)-long, evenly distributed static load.
  

• 600 lbs. (272 kg) for shelves 54˝ through 72˝ (1372 through
  1829mm)-long. Shelving units should not exceed 2400 lbs.(1089 kg) per set of four posts.

Packaging:

• 24˝ (610mm) through 48˝ (1219mm) lengths are packed four to a box.
  
• 54˝, 60˝ and 72˝ (1372, 1524 and1829mm) lengths are packed two to a box.