Secret Wall Slab Door Panel
Product Description
The Maderra Secret Wall Panel Door transforms an ordinary wall into a seamless, functional architectural feature. Designed to blend perfectly into any accent wall, this concealed door hides a secret compartment or passage behind a fully integrated wall slab.
Unlike traditional hidden doors, the Secret Wall Panel Door is built with the exact thickness of your wall, ensuring a flush, flawless finish. Whether your wall measures 4.5" or more, the door slab is customized to match it precisely, creating a completely integrated look.
From the front, it appears as part of your wall design—ideal for creating elegant accent wall panels, board and batten designs, or modern flat wall systems. From the back, it functions as a standard door, providing discreet access to a hidden space or storage compartment. Inside the slab, built-in shelving offers additional concealed storage for valuables, documents, or emergency items.
Each unit includes a pre-hung door frame and concealed pivot hardware for smooth operation. The interior features a decorative panel design for a refined architectural touch that looks as beautiful as it is practical.
Perfect for homeowners, designers, and builders who value style and discretion, the Maderra Secret Wall Panel Door offers a modern way to turn any wall into a hidden opportunity.
Product Specifications
Wall Integration:
Door slab thickness is built to match the exact wall depth (typically 4.5″ for standard walls). Custom wall thicknesses available upon request.Design Intent:
• Designed to seamlessly integrate into any accent wall, including board and batten, shiplap, or flat-panel wall systems.
• Accent wall materials are not included. Customers are responsible for creating their own wall design to cover the front of the door slab.Hidden Compartment:
• The interior of the slab includes built-in shelving for concealed storage.
• Ideal for securing valuables, documents, or emergency supplies.Frame & Hardware:
• Includes a pre-hung door frame and concealed pivot hardware for smooth, durable operation.
• Factory-aligned frame ensures precise installation and door swing balance.Operation:
• Opens like a standard door from the concealed side, providing easy access to the interior compartment.
• Can be configured for left-hand or right-hand swing.Interior Finish:
• The back of the door features a decorative raised or recessed panel pattern, adding a refined designer look to the interior side.Material:
• Built from engineered MDF for strength, precision, and stability.
• Ready for paint-grade finishing or can be ordered with custom finish options.Installation:
• Ships pre-hung for simplified on-site installation.
• Suitable for standard framed wall openings.
• Installation can be completed by homeowners or any local contractor.
Made in the USA | Custom-Built to Order | Hidden Functional Design
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:
RO Width: from the inside of one door jamb to the inside of the opposite jamb.
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.
Shipment Information & Production Timeline
All orders ship via third-party freight carriers with the following services included:
Liftgate delivery for safe and efficient unloading
Scheduled appointment coordinated directly by the freight carrier
Signature required upon delivery
Inspection at Delivery
Customers have a 15–20 minute window to inspect their shipment upon arrival.
If any significant damage is observed, it must be clearly noted on the Bill of Lading (BOL) before signing and before the driver leaves. In the event, damage happens, this documentation is required to qualify for a freight damage claim with the carrier.
Oversized Crates
Crates exceeding 96 inches in height may require additional assistance during unloading due to freight size limitations. Customers must ensure adequate help or equipment is available at the time of delivery. If extra help or tools (such as a forklift or lift assistance) are needed, they must be arranged by the customer at their own expense. If the freight carrier cannot deliver directly to your location due to size or access limitations, you will be responsible for picking up your shipment from the nearest freight terminal at your own cost. To avoid any delivery complications or added fees, we strongly recommend contacting us before purchasing to confirm delivery feasibility in your area.
How We Ship
Every order is packaged as a single, secure unit for safe freight transit.
Crated & palletized: Products are either fully enclosed in a custom plywood crate or pallet-wrapped with foam, corner/edge guards, and heavy-duty strapping (as shown).
Individually protected: Each component is wrapped and cushioned before the final crate/wrap is closed.
Built to freight standards: We use industry-standard materials and methods to prevent movement and impact during transit.
Maderra documents your project with photos throughout production and packaging. Before it leaves our warehouse, we send final images of the completed product and the sealed crate, providing clear proof of condition prior to shipment.
Production Time
Our production time can range anywhere from 4-6 weeks from the time the order is placed. Our lead times may extend with customization or supply constraints. Rush orders order options are available and targets a production time frame of 2-3 weeks window. Rush Capacity is limited.
Cancellations
All Maderra products are custom-made and become non-refundable after 24 hours of order placement. Orders canceled within the first 24 hours must be submitted in writing to 📧 customersupport@maderrashop.com for a full refund.
For full details on delivery responsibilities, damage reporting, and cancellation policies, please review our [Terms and Conditions].
With the purchase of your product, Maderra will provide email assembly and installation instructions once your order ships.
We also offer complimentary video-call assistance for additional support during setup. To schedule a live video session, you may call or text (801) 518-0394.
All Maderra products are designed for straightforward installation. Most homeowners complete the process themselves with basic tools and carpentry knowledge; however, you may also hire any local licensed contractor to perform the installation if preferred.
Please note: Maderra does not provide on-site installation services, except for select Utah customers and limited areas along the West Coast.
No video available.
