Rohn 45GSR90R320 Complete Tower

Engineered for Height and Stability in Demanding Conditions
The Rohn 45GSR90R320 is a complete 320-foot guyed tower system designed for high-reliability installations requiring substantial height and load capacity. Rated for 90 MPH wind speeds (3-second gusts) and supporting up to 47.7 square feet of antenna surface area, this tower is ideal for professional communications, broadcast, public safety, and wireless infrastructure where strength and longevity are non-negotiable. Built using Rohn’s enhanced 45GSR specification, it features reinforced solid round steel legs and a multi-bolt flange system for maximum structural integrity.

Reinforced 45GSR Construction with Solid Steel Legs
Unlike standard 45G towers, the 45GSR variant incorporates solid round steel legs instead of tubular members, providing increased compression resistance and long-term durability under heavy loading and environmental stress. This solid-leg design is critical for installations that demand extended height without compromising safety or stability. The tower’s signature triangular design and consistent 18-inch face width offer superior torsional resistance across all elevation points.

Optimized for Guyed Tower Applications with Strong Flange Joints
Designed specifically for guyed tower setups, the 45GSR90R320 uses a 4-bolt flange plate connection between sections, which significantly improves the joint strength and rigidity across the entire tower height. These flanges allow for stronger guying connections at anchor points and reduce deflection under load, ensuring consistent performance across seasons, climates, and usage profiles. This makes the tower a trusted choice for both commercial and industrial installations.

Modular Design for Easier Transport and Installation
With 10-foot standard sections, the tower is modular and designed for flexible transport and efficient assembly on-site. The sectioned approach not only aids in logistics but also simplifies inspection, replacement, and maintenance procedures over time. Whether you're using a base plate with anchor bolts, a hinged base, or casting into concrete, Rohn provides flexible base solutions tailored to a variety of site conditions and anchoring preferences.

Hot-Dip Galvanized for Long-Term Corrosion Protection
Every steel component in the 45GSR90R320 system is hot-dip galvanized after fabrication. This ensures full surface protection against corrosion, even at cut edges and weld points. It’s a critical feature for outdoor towers exposed to moisture, salt air, industrial pollutants, or freeze-thaw cycles. The galvanization extends the tower’s service life and minimizes ongoing maintenance costs.

Zig-Zag Bracing for Enhanced Load Distribution
Rohn’s iconic zig-zag cross-member bracing design is used throughout the tower, maintaining consistent strength across all sections. This continuous solid-rod bracing format helps distribute vertical and lateral loads evenly and provides reliable wind resistance at high elevations. When combined with the double-bolted section joints, the result is a structurally resilient tower capable of withstanding both environmental and operational stressors.

Ideal for Multi-Use Communications and Broadcast Systems
From amateur radio and commercial broadcast to cellular towers and wide-area wireless networks, the Rohn 45GSR90R320 is a proven solution for high-capacity antenna and equipment support. With its heavy-duty rating, it accommodates a wide range of mounting hardware, feedlines, and antennas across multiple elevations, making it adaptable for both current and future expansion.