Cantilever Rack Systems in Northern Virginia

Roll-formed cantilever uses bent sheet-steel components — lighter, less expensive, typically rated 500 to 1,500 lbs per arm pair. Structural cantilever uses hot-rolled I-beam and heavy tube steel, typically rated 1,500 to 4,000+ lbs per arm pair. Use roll-formed for lumber, light pipe, and packaged goods; use structural for steel bar, heavy pipe bundles, and steel service center inventory.

Yes. Because cantilever systems bolt together and anchor with standard base shoes, they can be disassembled, relocated, and reinstalled — including adjusting arm elevations up or down the column in set increments. This is a major operational advantage when product mix changes.

The Dulles corridor is typically Seismic Design Category A to B (low seismic). For indoor cantilever, anchoring is governed by the seismic design category and forklift impact. For outdoor yard cantilever, wind load under ASCE 7 usually governs the anchor-bolt pattern and base-shoe sizing, especially on tall or double-sided configurations. Where the permit requires it, our partner Virginia-licensed PE provides sealed engineering covering these loads.

Arm length should support the load across at least two arms with appropriate overhang, typically no more than 25 percent of load length extending past the last arm. Standard arms run 24, 36, 48, 60, and 72 inches. For lumber and pipe, 48" is the common default; steel service centers typically run 60" to 72" for long bar stock.

Yes, and it is common. Arm elevations along a single column can be adjusted independently at 3-inch or 6-inch increments (depending on column hole pattern), allowing one bay to hold tall bundles at wide spacing and the next bay to hold closer-spaced short-length stock. This is a core advantage over fixed-beam pallet rack for long-load operations.

Single-sided against a wall is the simpler install and works when you have one aisle and limited floor depth. Double-sided freestanding doubles the linear arm-feet per column footprint but requires two aisles (one on each side). For most mid-to-large Dulles corridor lumber yards, plumbing distributors, and steel service centers, double-sided is the dominant pattern because the density gain pays back quickly.

Capacity is rated per arm pair and varies widely by design. Light roll-formed systems carry roughly 500 to 1,500 lbs per arm pair, while heavy structural systems run 4,000 lbs or more per arm pair. Total column load and base design matter as much as the arms. Dulles Pallet Racking sizes cantilever from your actual load list and provides capacity documentation, with sealed drawings where the permit requires them.