Due to the high volume of orders, there is a delay in production. All items will be shipped approximately three weeks later than the estimated 6–8 weeks.
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Double Hidden Bookcase Door DIY Kit – Lower Cabinet (Style 2)
Double Hidden Bookcase Door DIY Kit – Lower Cabinet (Style 2)

Double Hidden Bookcase Door DIY Kit – Lower Cabinet (Style 2)

Product Description

The Maderra Double Hidden Bookcase Door DIY Kit gives builders and DIY enthusiasts the opportunity to create a professional-grade hidden entryway at home. Designed with precision-cut components and the same engineering used in Maderra’s fully assembled models, this kit transforms any standard opening into a seamless, functional bookcase door system.

Each kit arrives unassembled and unpainted, ready for you to finish and install to match your home’s style. The dual-door configuration opens smoothly, revealing a concealed room, office, or safe space while maintaining a beautiful built-in appearance.

All major structural components are CNC-cut to exact specifications, ensuring a perfect fit during assembly. The kit includes the complete pivot hardware system, frame, fasteners, and all predrilled pieces for easy alignment.

Please note: The back panels are not included and must be purchased separately and cut onsite. We recommend ½″ MDF sheets, available at most local hardware or lumber stores (e.g., Home Depot or Lowe’s).

This kit is ideal for homeowners with moderate carpentry experience who enjoy hands-on projects. Once assembled and painted, it delivers the same premium quality and durability as Maderra’s factory-built hidden door systems.

Product Specifications

  • Operation: Dual swing-out hidden bookcase doors using concealed pivot system

  • Swing Direction: Configurable as inswing (push-in) or outswing (pull-out)

  • Assembly Required: Yes – ships unassembled and unpainted

  • Finish: Raw MDF (ready for primer, paint, or wood veneer)

  • Back Panel: Not included – requires ½″ MDF or plywood backer (cut onsite)

  • Included Hardware:

    • Hidden pivot hinge set for both doors

    • Pre-hung jamb and frame components

    • Fasteners, shelf pins, and dowels

    • Complete assembly and installation hardware pack

  • Material: Engineered MDF core – CNC-machined for precision

  • Door Depth: 9.25″

  • Shelf Depth: 7.92″

  • Shelf Spacing: Approx. 12″–14″ (varies by height)

  • Finish Options: Unpainted MDF or raw veneer surface (to be finished onsite)

  • Tools Required:

    • Power drill or driver

    • Measuring tape, clamps, level, and basic hand tools

  • Experience Level: Intermediate – suited for DIYers with light carpentry experience

  • Estimated Assembly Time: 6–8 hours (depending on skill and setup)

  • Shipping: Flat-packed and clearly labeled for organized assembly

  • Applications: Perfect for hidden offices, safe rooms, pantries, or walk-in closets


    How to Measure Your Door Opening

      • To ensure your hidden bookcase door fits perfectly, please follow these simple steps when measuring your Rough Opening (RO):

        • Measure from the door jamb — not the door stop.
          The door stop will be removed when we install the prehung door frame, so please measure only from jamb to jamb.

        • Take two measurements:

          1. RO Width: from the inside of one door jamb to the inside of the opposite jamb.

          2. RO Height: from the floor to the bottom of the top jamb.

        • Submit your exact measurements.

        Once we receive your measurements, Maderra will automatically deduct ¾” from the height and ¼” from the width.

        This provides the necessary clearance and adjustment space for smooth installation of the prehung door frame.
        See video:


        •  

        Clearance Reduction by Swing Type

        Inswing Doors: Reduce the walkthrough width by approximately 5.7 inches.

        • Example: A 36-inch RO will provide a 30.3-inch walkthrough opening.

        • Outswing Doors: Reduce the walkthrough width by approximately 12.5 inches.

        • Example: A 36-inch RO will provide a 23.5-inch walkthrough opening.   

                 


        Will a Hidden Bookcase Door work in my opening?


        Yes. Our hidden bookcase doors work in all three layouts shown.

        Flush opening (flat wall)

        • Use our Flush-Mount Hidden Door.

        • The unit can be built outswing or inswing. See clearances below.

        Single-side return (one short wall at the opening)

        • Installs the same as a flush opening.

        • Choose outswing or inswing and follow the required clearances.

        Hallway / recessed (three-sided return)

        • At the hallway entrance: treat it like a flush opening.

        • Inside the hallway: you must frame a proper rough opening inside the corridor with a header and jack studs so the prehung unit and casing can fasten securely. Provide at least 2.5 inches of jack-stud width around your door entry.

        Swing options

        • Outswing: the bookcase swings toward you as you enter the room/hallway.
        • Inswing: the bookcase swings away from you into the next room/hallway.

        Minimum side clearances (critical)

        These allow solid fastening to the jack stud and room for casing around the opening.

        • Outswing: 2.5 inches minimum clearance from the adjacent return/side wall.
        • Inswing: 4.5 inches minimum clearance from the adjacent return/side wall.


        Framing & Clearance Requirements

        For proper installation, all Maderra doors must be installed in a standard framed opening that includes a header and jack studs on both sides.Wall thickness: A minimum of 2.5″ is required to install casing and trim around the door entry.

        • Inswing doors: Require at least 4.5″ of clearance from any wall or obstruction on the side the door swings into. This ensures the door can open fully into the room.

        • Outswing doors: Require a minimum wall thickness of 2.5″ for proper installation and casing placement.

        • Hallway installations: If your door will be placed in a hallway, it still be framed with jack studs and a header, and may require custom adjustments to fit the space properly.