GarageDoorProject proudly offers the Green Hinge System — the most advanced, energy-saving hinge system ever designed for residential overhead garage doors. This patented spring-loaded hinge replaces traditional center hinges and creates a tight, automatic seal every time your door closes. By eliminating air gaps and stopping drafts, the Green Hinge System helps maintain garage temperature, protect stored items, and reduce energy costs year-round. Unlike weatherstripping that cracks, shrinks, and needs constant replacement, the Green Hinge System adjusts automatically and maintains a lifelong seal — even on uneven floors, misaligned tracks, or slightly warped door panels. This makes it the only self-adjusting, gap-eliminating hinge system engineered specifically for residential garage doors. Built from heavy-duty 12-gauge powder-coated steel, each hinge delivers commercial-grade performance while providing quieter, smoother door operation. Perfect for homes, workshops, heated garages, and hobby spaces. Installation is simple: Replace only the center hinges — never the top or bottom brackets. Residential Doors will have silver springs. Doors wider then 10'0" and commercial doors- choose the commercial product which has gold springs. 4-panel systems use 6 hinges 5-panel systems use 8 hinges (See image diagram for proper hinge placement.) With lifelong durability, Made-in-USA construction, and a true Lifetime Warranty, the Green Hinge System offers unmatched performance, comfort, and value.