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Whalen Post Insert for COSTCO, SAMS Club. Full Set of Corner Inserts, Feet, and Post Caps.

4.8 (9) Write Review
Free shipping on orders over $29.99

$12.99

$ 5 .99 $5.99

In Stock
  • 【Made in USA】Buy from a locally owned business. Our products are manufactured in the USA.
  • 【Post Insert Set】Upgrade your storage rack with a full set of post inserts for maximum stability and protection. Used to connect the bottom and top halves of the storage rack together. Feet and caps are included.
  • 【Better than the Originals】Improved over years of customer input and iterations: our post inserts perform better than others. You will notice a distinct “click” sound that secures it in place.
  • 【Perfect Fit】 With precise manufacturing processes, we guarantee a perfect fit for your shelving unit every time. Its ridged edges provide for a tighter grip, making them harder to lose!
  • 【High Quality Materials】 Constructed from high-grade, impact-resistant plastic, our connectors are engineered for durability and long-term use.
  • 【Compatibility】Made for Costco, Sams-Club, Muscle Rack, Whalen, Member's Mark, Canadian Tire Mastercraft, Armadillo, and Sandusky Lee models. Not for Edsal, Raybee, REBII, Siavonce.
  • 【Dimentions】1 11/32 inches or 40 millimeters per side.


Product Description

Buy Extras and Store Them Securely

Buying extra post inserts ensures you have replacements readily available and increases the resale value of your shelving. When you have extras available, you won't have to waste time hunting—either on the floor or online. If you decide to sell your shelving in the future, having an entire set of post inserts will help.

Prevent Your Post Inserts from Getting Lost

Post inserts often become lost when moving your storage rack or buying second-hand shelving. It is very frustrating to find out at the last minute that you need rack replacement parts. This can delay your project plans or move-in by another week.

Use Cases

Corner aligners are essential for constructing a safe and stable shelving unit. Without feet and caps, exposed edges can damage your items and flooring.

Post inserts Used solely for aligning the posts. The top and bottom halves must be connected with both long and short beams.

Post caps protect your items when sliding them off the top shelf. Without the caps, items may catch or tear on the exposed edges, which is especially important for soft materials like bedding, sports equipment, or camping gear.

Post feet stabilize your shelving and protect your flooring. Without feet, the posts can bend, leading to instability and potential danger. The sharp edges of these posts can also gouge cement and tear flooring, making them especially important for office flooring or carpet.

Compatible Shelving Units

  • Costco Item Number: 956873
  • Sam's club Model Number: 016054-1 Item Number: 990332027
  • Whalen Model Number: WS1848ZL Item Number: 420825
  • Gorilla Rack Model Number: CCA48ZB-BW Item Number: 1600205 Item Number: WSCCA48ZB-BW-GRK
  • Other similar models

For Replacing Parts

  • Post Cap
    • WS1848ZL-5-PC
    • 00CCA48ZB-BW-E
  • Post Insert
    • WS1848ZL-6-PI
    • 00CCA48ZB-BW-F

Fits with Parts

  • Angle Post
    • WS1848ZL-1-AP
    • 00CCA48ZB-BW-A

Linda B
Reviewed in the United States on March 1, 2025
Worked, printed part, not nearly as good as the original molded part. Dimensionally incorrect.
Villarreal Family
Reviewed in the United States on February 19, 2025
These were exactly the parts we needed for our storage rack. Some were lost in the move
Michael Nicks
Reviewed in the United States on February 18, 2025
Fit perfectly and great value for the money. I lost the pieces for the shelf during a move and these made the shelf like new. Shelf is stable and functions like new out the box.
K. Jones
Reviewed in the United States on January 21, 2025
Great replacement option for the parts that came with our ahelves. The original parts crumbled so we will see of these last better.
Tena
Reviewed in Mexico on January 14, 2025
Quedaron perfecto completaron el mueble
Leticia
Reviewed in the United States on June 26, 2024
Exactly what we needed! So glad someone is providing a service/ product | couldn't find anywhere else! Worked perfectly! Even better than the original parts that got lost in a move.
Sara
Reviewed in the United States on December 21, 2024
Fits perfect in the racks from Costco
Patricia
Reviewed in the United States on November 8, 2024
In the course of moving the connectors to 5 sets of our shelves were lost. We tried these and now can rebuild our shelves! The shelves came from Costco but did not have a brand/maker name on them making it hard to find this part until we found these! Thrilled!
Leopoldo
Reviewed in Mexico on November 4, 2024
Pensé que ya no iba a servir pero afortunadamente encontré el repuesto