How to Anchor Pallet Racks to Concrete
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CLEVELAND - OhioPen -- Pallet racks are essential to warehouses and retail centers, as well as to many industrial and commercial facilities. Regardless of the facility, all racks must be anchored for stability and security.

Once the type of pallet racking has been determined, a floor plan must be designed to allow for adequate aisle spacing. If the storage space requires a tighter configuration, then pallet racking designed for narrow aisles is available.

After the facility racking floor plan is designed and the racks are assembled, the decision to purchase the anchors to secure the racks to the concrete slab must be carefully considered.


A vertical tolerance of 1/8" in 4 feet is generally accepted as level in most applications.

It is critical to ensure that all the racks are level before installing any anchors or screws. It is also essential to ensure that every column of the rack frame will be anchored to an adequate and stable concrete floor. Deciding which anchor to use is typically based on the manufacturer's recommendation and/or personal preference.

Wedge Anchors:

One option for fastening pallet racks is the use of a concrete wedge anchor. Wedge anchors are available in a variety of diameters and lengths and are specifically designed for use in solid concrete. The diameter to be used in each application is dependent upon the hole size in the bottom plate of the upright. Most racking systems have holes that will accommodate a 1/2" diameter wedge anchor. The 1/2" anchor is available in 8 different lengths ranging from 2 3/4" to 12". The most commonly used lengths for fastening pallet racks are the 3 3/4" and 4 1/4".

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Size of Wedge Anchor

Another essential consideration is to determine the required holding values for the chosen anchor. Once the holding values are calculated and verified, refer to the wedge anchor technical specifications technical chart to select the size of anchor required. If unsure of the correct size anchor to use, it is recommended to check local building codes or have an engineer determine the requirements for the application. The pallet rack manufacturer may also suggest an anchor size to use.

-      To order CONFAST Wedge Anchors Visit: (

Some installers of pallet racks choose to use hex head large diameter concrete screws. It is recommended to use high-quality concrete screws that are specifically designed for heavy-duty applications, such as installing pallet racks. This will ensure a secure and long-lasting installation that can withstand the weight of the pallet racks and their contents.

Products Features Include:
  • EASY TO INSTALL:  Fast, secure installation
  • EASY TOREMOVE:  Simply turn clockwise and back the screw out of the hole
  • ONE PIECE DESIGN:  No nuts or washers the anchor comes complete


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The anchor is made from hardened carbon steel zinc plated. This anchor is designed for use in Concrete, Block, and Brick.


The anchor is designed for use in a dry environment.

Head Style

The anchor is a Hex Washer Serrated head and is designed to allow the head to sit on top of the surface of the item being attached.

Spacing between Anchors

Each anchor must be spaced a minimum distance of 8" from each other when measured center to center.

Edge Distance

It is very important not to install the anchor any closer than 5" from an unsupported edge of the concrete.

It is recommended to check local building codes or have an engineer determine the requirements for the application as well.

To order CONFAST concrete anchor: (

Nanette Gregory

Source: Confast Concrete Fasteners

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