How to Create the Lightest Pallet Rack: Design Principles That Save Steel and Cost

When it comes to pallet racking, lighter isn’t just better—it’s smarter.

Whether you’re a rack manufacturer, integrator, or structural engineer, designing the lightest possible rack for your client’s capacity requirements means saving on material, freight, and installation costs.

But hitting that sweet spot—safe, code-compliant, and efficient—isn’t easy.

Historically, engineers had to rely on personal judgment and limited iteration to create racking systems.

But with modern tools like OneRack and its SmartSolve feature, the process of optimizing for the lightest possible design has changed completely.

The Problem: Most Rack Designs Are Heavier Than They Need to Be

Designing a pallet rack to meet capacity is one thing. Designing the lightest possible rack that still meets capacity, safety, and code requirements? That’s another level.

Engineers don’t always have the time or bandwidth to evaluate all of the possible configurations, which can be hundreds of thousands or even millions. That means most designs are over-engineered, leading to excess steel, unnecessary cost, and wasted freight.

Even small improvements can compound dramatically across thousands of bays.

How to Create the Lightest Warehouse Rack Design Possible: 3 Things to Consider

1. Optimize the Material: Steel Grade, Shape, and Size

The first and most obvious lever is the material itself. This includes:

• Steel Grade: Higher-strength steel (e.g., 55 ksi vs 50 ksi) can handle more load with less material.
• Column & Beam Shape: Roll-formed shapes can vary significantly in performance based on flange width, lip depth, and corner radius.
• Member Sizing: Selecting the smallest member that meets capacity (with deflection limits) is the key to trimming unnecessary weight.

With SmartSolve in OneRack, every possible configuration is automatically evaluated to find the lightest section that satisfies structural requirements. Human engineers simply can’t match that volume of iteration in a real-world design timeline.

2. Column Reinforcement When Needed

Frame columns can be reinforced with backers—additional steel that increases axial and bending strength.

Considerations when adding backers:

• Add labor and weight
• Drastically adds capacity, which may be overkill. The frame is only a little bit overstressed
• Using a larger column or condensing panel spacing may be a more efficient option

3. Optimize Panel (Brace) Spacing for Maximum Frame Efficiency

One of the most overlooked elements of frame design is panel spacing—the vertical distance between horizontal and diagonal braces in the frame.

Tighter panel spacing adds stability and increases effective column capacity. But it also adds steel and complexity. The trick is finding the optimal balance.

SmartSolve evaluates every possible spacing option in tandem with member size and reinforcement to determine the lightest, most structurally efficient frame geometry. Again, something that would take a human engineer like 10 years, OneRack solves in seconds.

Why Human Engineers Can’t Do This Alone

It’s not about skill—it’s about scale.

Given time, any good structural engineer could analyze 100,000 rack frame options and land on a solid, code-compliant solution. But engineers have the ability to:

• Analyze millions of configurations
• Compare total steel weight across frame types, steel grades, and backer choices
• Re-check results with updated loading, bracing, or anchorage scenarios

SmartSolve does this instantly, letting engineers focus on higher-level decisions, customer value, and project coordination.

Conclusion

If you want the lightest pallet rack design that still checks every box—capacity, stability, code compliance—there’s no better way than letting software do the heavy lifting.

SmartSolve, built into OneRack, considers all the critical variables:

• Member size and shape
• Steel grade
• Column backers
• Panel spacing

It instantly compares thousands of valid configurations to deliver the lightest, most efficient rack possible for your load.

Want to stop overbuilding your racks?

Register for a free trial of OneRack and see how SmartSolve transforms the way you design for efficiency.