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4-Post Flexible Shelving

4-Post Flexible Shelving

With secure shelves and exposed locking casters that allow items to remain securely stored throughout transport and at their destination, Spacesaver’s 4-Post Flexible Shelving solution gives users the ability to keep their projects rolling with ease. Flexible Shelving is offered in a range of design styles and sizes manufactured to accommodate the fit and function of your operation and the specific needs of those it serves.

• Enables spaces to be easily reconfigured on the fly
• Frees up valuable space for events
• Allows alternate uses such as meetings, classes, training, makerspaces, and more


• Customizable end panel finishes available in a variety of materials (commonly laminate, wood, acrylic, and resin)
• Ability to match custom finishes between stand-alone/static, on-casters, and on-mobile shelving for a cohesive and complimentary look
• Helps to create a warm and welcoming space for students and visitors to “unplug” from technology and browse for physical books and other collections


• Spacesaver’s Flexible Shelving Caster Bases passed:
» Rigorous internal cart stability testing per BIFMA X5.9-2012 Section 9 standards
» Maximum load testing - proving Spacesaver’s caster base design will robustly support an 810 lb. point-load or 1,620 lbs. total load per 72”W caster base, which represents the maximum loading scenario for a single caster base
• Maintenance-free solution: Aside from routine cleaning and dusting, feel confident in Spacesaver’s Flexible Shelving knowing we use premium materials
• Our Flexible Shelving solution offers lifetime limited coverage on shelving and 5 years limited coverage on wheels

• Spacesaver’s Flexible Shelving units maximize precious funding – delivering a solution that is quick and easy to move to accommodate a variety of alternative programming
• Reduces institutional cost per square foot by enabling space to be used for many purposes - not solely static shelving


• Reduce: Our durable steel shelving solution comes with a lifetime limited warranty
• Reuse: Designed to be customizable and configurable, shelving can accommodate a myriad use as needs change over time
• Recycle: When shelving is no longer needed, the durable steel construction is 100% recyclable

• Flexible shelving is most commonly selected at counter-height to maintain line-of-sight for a safe, open, and welcoming environment

  • Standard 4-Post Dimensions Sizes:

    Widths in Inches: 36, 72

    Depths in Inches: 20, 22, 24, 26

    Heights in Inches: 40 ¼, 64 ¼ 

    The Revit model is flexible to our standard dimensions and configurations. For Custom System Sizes see Tech Data Sheet.

    Exposed Locking Caster Bases:

    • Double-wheel, total-locking casters with wheel diameters = 100 mm (3.937 inches)
    • Caster trim comes standard with grey colored wheel tread and brake pedal, and a white caster body, for a neutral finish that fits well within most any space
    • Caster wheel tread is non-marking, made of polyurethane material with Shore A 92 hardness, designed for durability and smooth motion on both carpeted and solid surfaces
    • Caster base height from the floor to the bottom of the shelving = 7.911”
    • Reveal height from the floor to the bottom of the caster base = 4.621”
    • Actual caster base width without panel finishes = Nominal Shelving Width + 0.350”
    • Actual caster base depth without panel finishes = Nominal Shelving Depth + 0.625”

    Caster Construction: 

    • (2) cross supports (C-Channel weldments) per caster base, or (3) per 72”W caster base. Cross supports shall be formed of 14 ga. (1.9 mm) cold rolled steel.
    » For Exposed Locking Caster Bases only: (2) caster mounting plates shall be bolted in (4) locations to each cross support. Caster mounting plates shall be formed of 11 ga. (2.9 mm) cold rolled steel.
    » For Concealed Caster Bases only: (2) caster mounting supports shall be welded to each cross support and formed of 14 ga. (1.9 mm) cold rolled steel.
    • (2) supports that form the front and back profiles of each caster base, with a 0.25 in. (6.35 mm) thick hem feature for structural rigidity, shall be formed of 12 ga. (2.6 mm) cold rolled steel.
    • (2) welded end-panels that form the side profiles of each caster base shall be formed of 14 ga. (1.9 mm) cold rolled steel.
    • (1) spacer plate shall be welded to each cross-support and formed of 12 ga. (2.6 mm) cold rolled steel.

Technical specification
  • Unique ref.spacesaver-4-post-flexible-shelving
  • Product familyEducation & Library
  • Product groupFlexible Shelving, Library Shelving, Mobile Shelving, Day Use Lockers
  • TypeObject (single object)
  • Date of publishing2022-12-08
  • Edition number1
  • Material mainSteel
  • Material secondarySteel
  • Designed inUnited States
  • Manufactured inUnited States
  • BIMobject CategoryFurniture - Shelving & Storage
  • IFC classificationFurniture
  • CSI MasterFormat 2014 Code11 51 23
  • CSI MasterFormat 2014 TitleLibrary Stack Systems
  • OmniClass Number23-21 25 21 11
  • OmniClass TitleLibrary Stack Systems

Region availability

North America
Antigua and Barbuda
British Virgin Islands
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Dominican Republic
El Salvador
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States