Pallet Rack Components
Pallet Rack Components and Parts, Matched to the System You Already Have
Upright frames, beams, wire decking, row spacers, anchors, hardware, and load signage. We specify pallet rack components against the engineered drawings and against the steel actually standing in your building, then supply and install them.
Every Component
From base plate to load plaque
ANSI MH16.1
Anchoring and load signage to the standard
OEM or Equivalent
Parts engineered to match your system
Pallet rack components are the individual parts that make up a rack bay: the upright frames, bracing, and base plates that carry load down to the slab, the beams that carry the pallets, and the decking, connectors, spacers, anchors, and signage that turn that frame into a usable, code-compliant storage system. Every component carries its own rating, and the lowest-rated part in the assembly governs what the bay can actually hold.
The Right Application
Pallet Rack Components, Grouped by What They Do
Upright Frames, Bracing, and Base Plates
The vertical structure: two columns tied by horizontal and diagonal bracing on welded base plates that carry load into the slab. Frame height, depth, and column profile are not generic choices, because a published rating assumes a specific upright height, beam span, and number of levels.
Anchors and Shims
Every upright base plate has to be anchored to the floor, and shims go under the plate to plumb the column before the anchors are tightened. A column left out of plumb loses capacity, so anchor type and shimming are specified against the slab rather than assumed on site.
Beams, Connectors, and Safety Clips
Beams hook into the columns and carry the load between frames, and that connection is what a forklift impact attacks. Safety clips, also called locking pins or beam locks, pin the connector to the column so an upward strike cannot pop a beam out of its slot, on both ends of every beam.
Wire Decking and Pallet Supports
Decking gives the bay a load surface. Wire decking is three independent choices rather than one style off a list: edge form (waterfall or flush), channel profile (step or flared), and channel orientation (standard or inverted). Pallet support bars run front to back between the beams and add bearing points for damaged, lightweight, or non-standard pallets.
Row Spacers and Back Stops
Row spacers are steel arms that bolt between two back-to-back rows. They tie the rows into one more stable structure and hold the longitudinal flue open so sprinkler water can reach down through the load. Back stops keep a forklift from pushing a pallet past the intended line and into that flue space.
Load Plaques and Signage
Every system needs a permanent load plaque posted where operators can see it. ANSI MH16.1 calls for it, and OSHA can cite a facility that stores beyond a rated capacity or posts no rating at all. The plaque has to reflect the configuration that is actually installed.
Technical Specifications
Key Specs & Configuration
| Upright Frames | Braced columns on welded base plates, typically with two to four pre-drilled anchor holes. A rated capacity assumes a specific upright height, beam span, number of levels, anchor spec, and seismic zone. |
| Anchors and Shims | Wedge anchors are the most common for standard 4 to 6 inch slabs. Epoxy anchors use a chemical adhesive and are preferred where concrete is older, cracked, or thinner, or where holes fall close to a slab edge. Type and embedment are specified against the slab, not assumed. |
| Beams and Safety Clips | Clips, locking pins, or beam locks pin the beam connector to the column, required by most rack manufacturers' specifications on both ends of every beam. They fall out or get left off during reconfiguration, which is why missing clips are a common inspection finding. |
| Wire Decking | Manufactured to ANSI MH26.2, the standard covering design, testing, and load rating of welded wire rack decking. Capacity comes from wire gauge, mesh pattern, and the number and depth of support channels, published as a uniformly distributed load. |
| Deck Versus Beam Capacity | The deck rating and the beam rating are separate numbers, and the lower of the two is the real limit for that level. Both belong on the load signage for the bay. |
| Pallet Supports | Bars running front to back between the beams, perpendicular to the load, so the pallet is not relying on two beams alone. Used for damaged or non-standard pallets, non-palletized loads, and decking that needs intermediate support. |
| Row Spacers | Standard lengths commonly run 6, 8, 10, 12, 14, and 18 inches, installed at upright brace points up the height of the frame. Sizing is code-driven, since the resulting flue has to work with pallet overhang on both rows. |
| Load Plaques | Show maximum permissible unit load, average unit load, and maximum total load per bay, posted at the end of each row or at regular intervals. Rated capacity depends on beam spacing, so moving beam levels means re-rating the system and replacing the sign. |
| What We Need to Quote | Beam length, frame depth, and beam profile for every bay type in the run, the heaviest actual load per level rather than the average, and whether product is palletized, loose cases, or mixed. On an older system, measured from the installed rack rather than the original order. |
How It Works
How We Specify Pallet Rack Parts
Most component orders arrive as a list of part names and a quantity. That works on a new system where the drawings are current. It goes wrong on a system that has been extended, damaged, and reconfigured over the years, because the paperwork and the steel routinely disagree. We start from the engineered drawings and from what is actually standing in the building. Where you are replacing parts rather than adding them, we supply OEM or manufacturer-equivalent components engineered to match the existing system through repair and maintenance, and put them in with our own racking installation crews.
One rule governs almost every component decision: each part carries its own rating, and the lowest one wins. A level with heavy beams and light decking is a level limited by the decking. Deck capacities are published as uniformly distributed loads, so a dense item bearing on a small area of mesh is a different case. Our wire decking spec guide covers deck styles, channel profiles, and sizing, and our pallet rack weight capacity guide covers how the beam side of that number is derived. To model a configuration before you order, use the capacity calculator.
Anchoring and signage are where a parts list stops being a purchasing question and becomes a compliance one. ANSI MH16.1 requires that rack columns be anchored, and OSHA cites unanchored racks as a recognized hazard under the General Duty Clause. The same standard calls for a permanent load plaque, and since rated capacity depends on beam spacing, moving a beam level means re-rating the system and updating the sign. Our guides on whether pallet racking has to be bolted down, pallet rack spacing requirements, and pallet rack dimensions and sizes cover the anchor, flue, and sizing rules in detail.
Two things this page leaves to others. Forklift impact protection, meaning column protectors, end-of-aisle guards, and back-of-rack mesh panels, is sized to your upright profile and your fleet rather than to the bay, and it lives on our rack protection page. And if you are still working out what you need, our pallet rack accessories guide walks through each part in more depth than a specification page should. If you would rather someone looked at the system first, that is what pallet rack inspections are for.
What You Get
Built In, Not Bolted On
Specified From the Drawings
A rack rating assumes a specific upright height, beam span, number of levels, anchor spec, and seismic zone. We match components to that engineered configuration rather than to a part that looks close in a catalog.
Measured From the Installed Rack
On a system that has been extended, damaged, and reconfigured, the original order and the steel in the building often disagree. Beam length, frame depth, and beam profile get confirmed for every bay type before anything is ordered.
Anchoring and Signage Included
Anchors, shims, and an accurate load plaque are the components most often left off a parts list, and the first things an inspector checks. We treat them as part of the scope, not an afterthought.
Best Suited For
Common Applications and Industries
Third-Party Logistics
Mixed client product and changing configurations, where beam levels move often enough that load signage has to be re-rated along with them.
Warehouse Distribution
High-traffic systems where decking takes the most wear and safety clips go missing during reconfiguration.
Food & Beverage
Sanitation-driven specification, where inverted channel decking removes the trough that dust, debris, and residue collect in.
Manufacturing
Odd, heavy, and non-palletized loads that need pallet supports or decking rather than two beams and open air.
Related Services
We Handle Design, Installation & Permitting
The part that saves money is checking the drawings before anyone orders. Components look interchangeable in a catalog and they are not, and a part that does not match the engineered configuration usually shows up as a problem later rather than at delivery.
Ivan Garcia
Director of Project Management
Other Systems to Consider
Related Storage Systems
Selective Pallet Rack
The system most of these components are specified for, and the one most likely to be reconfigured after it is installed.
Learn More →
Rack Protection
Column protectors, end-of-aisle guards, and back-of-rack mesh, sized to your upright profile and your forklift fleet.
Learn More →
Shelving Systems
Hand-loaded storage for cases, cartons, and small parts, where a pallet bay is the wrong unit of storage.
Learn More →FAQ
Common Questions
What are the main components of a pallet rack?
Upright frames, meaning two columns tied by horizontal and diagonal bracing on welded base plates; the load beams that span between frames; the connectors and safety clips that hold those beams in the column; a load surface, either wire decking or pallet support bars; anchors and shims that fix the frames to the floor and hold them plumb; row spacers where rows sit back to back; back stops where product can be pushed out of the bay; and a load capacity plaque. Each carries its own rating, and the lowest-rated part governs the level. For a walkthrough of what each one does, see our pallet rack accessories guide.
Can I mix components from different rack systems?
Not casually. Frames, beams, and connectors are engineered together, and a part that looks close is not the same part. Mixing frame depths or heights within a single row may require row spacers, transition beams, or stamped drawings. On the decking side, a building running more than one beam profile is where flared channel decking earns its keep, since it seats on more than one profile. Confirm against the drawings before ordering. Our pallet rack dimensions and sizes guide covers how frame and beam sizes are derived.
Do replacement parts need to match the original manufacturer?
They need to match the engineered configuration, which usually means OEM parts or manufacturer-equivalent components engineered to match the existing system, across uprights, beams, connectors, anchors, and base plates. A published capacity assumes a specific upright height, beam span, number of levels, anchor spec, and seismic zone, so a substitute that changes any of those changes what the bay is rated to hold. We source and install replacement components through repair and maintenance.
Are load capacity signs required on pallet racking?
Yes. ANSI MH16.1, the national rack design standard, calls for a permanent load plaque, and OSHA can cite a facility that stores beyond a rated capacity or posts no rating at all. The plaque shows the maximum permissible unit load, the average unit load, and the maximum total load per bay, posted at the end of each row or at regular intervals. Rated capacity depends on beam spacing, so any time beam levels move, the system has to be re-rated and the sign updated. A sign that no longer matches the configuration is worse than no sign, because it documents the wrong limit.
Do pallet rack components need to be anchored to the floor?
Yes. Every upright base plate has to be anchored. ANSI MH16.1 requires that rack columns be anchored, and OSHA cites unanchored racks as a recognized hazard under the General Duty Clause. Unanchored racks also void published load ratings and the manufacturer's structural warranty. Wedge anchors are the most common choice for standard 4 to 6 inch slabs, and epoxy anchors are preferred where concrete is older, cracked, or thinner. Our guide on whether pallet racking has to be bolted down covers anchor selection and what an inspector checks, and our pallet rack spacing requirements guide covers flue and clearance rules.
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