Johnson Hardware 100FD484 4-Panel Folding Door Hardware 48" (2-BOXES) Achieve smooth, reliable operation for multi-panel bi-fold doors with the Johnson Hardware 100FD484 4-Panel Folding Door Hardware Set, a commercial-grade solution designed for both residential and commercial applications. This complete kit includes a 48-inch extruded aluminum I-beam track and all necessary hardware to install a 4-panel bi-folding door system, ideal for closets, pantries, storage rooms, room dividers, and office partitions. The system supports high-traffic environments with durable components engineered for long-term performance and ease of use. The track is constructed from 6063-T6 extruded aluminum with a mill-finish surface that resists corrosion and provides a clean, modern appearance. It can be easily cut down to fit narrower openings, offering flexibility for custom installations. Integrated into the system are heavy-duty nylon-encapsulated, sealed ball bearing wheels that deliver quiet, smooth rolling action with minimal friction?ensuring doors glide effortlessly even after years of frequent use. Each wheel has a 1-inch diameter and is rated to support up to 75 pounds per door, allowing the full system to handle substantial panel weights with ease. All steel components?including hangers, brackets, and fasteners?are made from 12 to 14-gauge steel and finished with a zinc trivalent plating for superior rust and corrosion resistance. This protective coating enhances durability, especially in high-humidity environments. The hardware is designed for top-mount installation, attaching securely to the header or ceiling, and requires no mortising. All mounting screws and hardware are included, making installation straightforward and tool-efficient. The 100FD484 system is compatible with door panels between 1-1/8 inches and 1-3/4 inches thick, and accommodates individual panel widths up to 12 inches. This makes it suitable for a wide range of standard and custom door configurations. With its four-panel design, the system allows doors to fold neatly to one or both sides, maximizing access to the opening while conserving space. Features - Complete 4-panel bi-fold door hardware set with 48-inch aluminum track - Designed for commercial and residential applications with heavy-use durability - Supports doors up to 75 lb per panel - Nylon-encapsulated sealed ball bearing wheels ensure smooth, quiet operation - 1-inch diameter wheels provide long-lasting performance with low rolling resistance - 6063-T6 extruded aluminum I-beam track with mill finish for strength and corrosion resistance - Track is field-cuttable to fit openings narrower than 48 inches - Top-mount design for easy installation with no mortising required - Includes all necessary hardware and screws for quick setup - 12 to 14-gauge steel components with zinc trivalent plating for enhanced durability - Suitable for panel thicknesses from 1-1/8 in to 1-3/4 in - Maximum panel width: 12 inches - Four-panel configuration allows full access to the opening when folded - Ideal for closets, pantries, room dividers, and office enclosures - Commercial-grade build for high-traffic areas - Clean, minimalist look with low-profile components Specifications - Brand Name: Johnson Hardware - Sub Brand: 100FD - Model Name: 100FD484 - Part Number: 100FD484 - Product Type: Bi-fold Hardware Kit - Number of Panels: 4 panels - Track Length: 48 in - Track Material: 6063-T6 Extruded Aluminum - Track Finish: Mill Aluminum - Wheel Diameter: 1 in - Wheel Type: Nylon-Encapsulated Sealed Ball Bearing - Steel Components: 12?14 Gauge - Finish: Zinc Trivalent Plated (steel), Mill Finish (aluminum) - Maximum Weight Per Door: 75 lb - Door Thickness: 1-1/8 in to 1-3/4 in - Panel Thickness: 1-1/8 in to 1-3/4 in - Maximum Panel Width: 12 in - Mounting Type: Top Mount - Installation: Ceiling or header mounted - Hardware Included: Yes - Screws Included: Yes - Application: Commercial and Residential - Packaging Type: Boxed - Package Dimensions: 50 in L x 4.13 in W x 1.38 in H - Each Weight: 5.100 lb - Item Weight: 5 lb - Manufacturer: Johnson Hardware - ECCN: EAR99 Product Application The Johnson Hardware 100FD484 4-Panel Folding Door Hardware Set is engineered for contractors, builders, and homeowners who need a durable, high-performance solution for multi-panel bi-fold doors. Whether used in a luxury closet, hotel suite, office space, or retail environment, this commercial-grade system delivers smooth operation, robust support, and professional results. Its adjustable, cut-to-fit design and included hardware make it ideal for both new construction and retrofits. With superior materials and precision engineering, the 100FD484 provides lasting reliability and elegant functionality in any space where space-saving doors are essential.