When your storage needs grow beyond a single shelving run, this 4-post double entry adder unit gives you a practical, space-efficient way to extend your existing system without starting over. Designed to connect to a compatible starter unit, it adds 6 openings of accessible storage on both sides of the run, making it well suited for file rooms, records storage, supply areas, and back-office environments where floor space is at a premium.

At 48'' W x 26'' D x 76.25'' H and 117 lbs, this is a substantial, full-height unit built to anchor a productive shelving layout. The double entry configuration means staff can access stored materials from either aisle, improving workflow in shared or high-traffic storage areas.

This adder unit is intended to be added to an existing 4-post shelving starter section, extending the run along a shared upright. It is a practical choice when planning a multi-section shelving system where you need to maximize linear storage capacity within a defined footprint. The 26'' depth and 76.25'' height make it compatible with full-height shelving layouts, and the 6-opening count gives you meaningful storage capacity per section. Because this is a configured, made-in-the-USA product, lead times and installation requirements should be confirmed at the time of order.

Key Features:

• Double Entry Configuration: Accessible from both sides of the shelving run, supporting efficient retrieval in shared or aisle-based storage layouts.
• 6 Openings: Provides six storage bays per adder section, giving you meaningful capacity as you extend your shelving system.
• Full-Height Design: At 76.25'' H, this unit maximizes vertical storage space and integrates with full-height shelving runs.
• Adder Unit Design: Connects to a compatible starter section by sharing an upright, reducing the total hardware needed and keeping your layout clean and stable.
• Made in the USA: Manufactured domestically for quality assurance and reliable lead-time planning.
• Substantial Build: At 117 lbs, this unit is built for long-term, heavy-use storage environments.

This 4-post double entry adder shelving unit is a straightforward way to grow a shelving system that is already working for you. With 6 openings, double-sided access, and a full-height profile, it fits naturally into file rooms, supply closets, and organized back-of-house storage areas. Installation by a certified installer is required to qualify for the full limited lifetime warranty, so plan accordingly when scheduling your project.