SKMYL Heavy Duty Hidden Door Hinge Pivot Hinge 10.9 cm (4.3 in) 220 lb Capacity | Concealed Door Hardware Kit for Secret Rooms

• Heavy Duty & Rustproof (220 lb Capacity) – Premium stainless steel with electroplated finish, passes 72-hr salt spray test. Floor-supported design handles doors up to 220 lbs. Ideal for hidden gun rooms, solid wood entry doors
• 180°+ or 360° Rotation(Two Mounting Options) – Side mount delivers smooth inward/outward swing with no wobble or binding. Center mount enables full 360° pivoting motion. Works as pivot hinge for hidden doors and custom concealed door hardware
• Completely Invisible When Closed – No exposed pins, no bulky hardware. This fully concealed pivot hinge creates a seamless, clean look for bookcase doors, bookshelf secret rooms, modern hidden entrances, or hidden pantry doors
• DIY-Friendly Installation – Includes detailed step-by-step instructions for fast setup using common tools such as a drill, screwdriver, level, and chisel. Most installations can be completed within 1–2 hours without hiring a professional carpenter
• All-in-One Kit, No Extra Shopping – Includes 1 top + bottom pivot hinge set, mounting screws, and 1 door ball catch. Everything you need for a single hidden door installation. No hidden costs or last-minute trips to the hardware store

• Mark and Prepare Door and Frame — Carefully mark the positions for the top and bottom pivot hinge assemblies on both the door and the frame according to the included instructions. Use a level to ensure accurate placement. Chisel out any necessary recesses for flush mounting.
• Install Bottom Pivot Hinge — Attach the bottom pivot hinge assembly to the floor or frame at the marked location using the provided mounting screws. Ensure it is securely fastened and aligned correctly with the door's intended pivot point.
• Attach Top Pivot Hinge and Door — Mount the top pivot hinge assembly to the top of the door or frame. Then, carefully align the door with the bottom hinge and the top hinge, and secure the door onto the pivot system. Install the door ball catch.
• Test and Adjust — Gently swing the door to test its movement. Check for any wobble, binding, or misalignment. Make minor adjustments to the hinge positions or door alignment as needed to achieve smooth, silent operation.

Typical situations where SKMYL Heavy Duty Hidden Door Hinge Pivot Hinge 10.9 cm (4.3 in) 220 lb Capacity | Concealed Door Hardware Kit for Secret Rooms helps — illustrative scenarios, not customer reviews.