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

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

Product Description

The Maderra Hidden Bookcase Door DIY Kit – gives DIY builders and homeowners the opportunity to create their own secret entryway with professional quality and precision. Designed to look like a classic built-in bookshelf, this door swings open to reveal a concealed room, closet, or safe space — combining beauty and function in one design.

Each unit arrives unassembled and unpainted, providing complete flexibility to customize the final finish and detailing. The structure and proportions are identical to Maderra’s fully assembled hidden doors, ensuring the same strength, balance, and smooth swing performance once completed.

This DIY kit includes all pre-cut components and required hardware, including pivot hinges, frame pieces, fasteners, and shelf supports. All parts are CNC-machined to exact measurements for easy alignment and accurate assembly.

The back panel is not included and must be cut onsite to ensure a perfect fit once the bookcase is fully assembled. A ½″ MDF sheet can be purchased from any local hardware or lumber store such as Home Depot or Lowe’s.

Designed for DIY enthusiasts with moderate carpentry experience, this system delivers a true Maderra hidden-door experience — at an affordable, build-it-yourself level.

Product Specifications

  • Operation: Single swing hidden bookcase door using concealed pivot system

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

  • Configuration: Single door, pre-hung frame system

  • Assembly Required: Yes – ships unassembled, flat-packed, and unpainted

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

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

  • Included Hardware:

    • Hidden pivot hinge system

    • Pre-hung jamb components

    • Fasteners, shelf pins, and dowels

    • Complete assembly and installation hardware kit

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

  • Door Depth: 9.25″

  • Shelf Depth: 7.92″
    Shelf Spacing: Approximately 12″–14″ (varies by door height)

  • Finish Options: Unpainted MDF or raw veneer surface (finished onsite by user)

  • Tools Required:

    • Power drill or driver

    • Measuring tape, clamps, and level

    • Basic hand tools (screwdriver, hammer, square, etc.)

  • Experience Level: Intermediate – suitable for homeowners with carpentry or DIY assembly experience

  • Production time: 4–6 weeks.

    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.