Hide Mobile Phones at Home (Hollowed Novel Books)
A hollowed novel can keep a phone out of sight, but it should be treated as a simple, removable storage spot, not a safe. Measure the phone with its case on, leave room to lift it out, and keep it switched off and uncharged inside. Never charge it in the closed book: the cavity can trap heat and hide battery damage.
A book can look ordinary on a shelf, which is why this method appeals to people who want a low-profile place for a spare phone. The less obvious issue is that concealment also makes it harder to notice heat or battery swelling. Good preparation matters more than making the book look convincing.
I recommend a hollowed novel only for a phone that is stored unpowered and checked from time to time. It is not a fire-rated container, a lock, or a reliable way to protect a valuable device from someone who searches the room. The steps below focus on a stable fit, easy access, and safe storage.
What a hollowed book can and cannot do
A hollowed book is a shallow storage cavity made by removing pages from a book block. It can keep a phone less visible on a shelf, but it does not prevent access by someone who picks up or examines the book. Think of it as discreet storage, not a security device.
Choose it for an extra or temporarily stored phone, not as the only place for an emergency contact device. Keep the phone reachable, and tell a trusted household member where it is if they may need it. Avoid using a book that is valuable, fragile, or important to someone else.
There is no building-code cavity size for this kind of furniture-scale storage. You are modifying a book, not a wall or an electrical system. Do not add wiring, a charging outlet, or a cable through the cover or spine. NEC 110.3(B) concerns listed electrical equipment and requires it to be installed and used according to its listing and instructions; it does not set dimensions for a book cavity.
Choose a suitable book
A suitable book has enough page depth and cover strength to hold a cavity without losing its shape. A sturdy, inexpensive hardback is usually easier to work with than a thin paperback. The cover should close without pressing on the phone, and enough material should remain at the spine to keep the book stable.
Check the book’s depth before cutting. A device that fits between the covers may still make the book bulge or strain its spine. If it does, use a larger book rather than forcing the fit.
Measure the phone and plan the cavity
Measure the phone with its case fitted, since the case is part of the stored device. Add practical clearance so you can remove the phone without pulling at its buttons or camera. These are fit targets, not code rules: allow at least 5 mm on each side and 10 mm at each end.
Use a ruler or caliper to measure the phone’s length, width, and thickness. Measure the book’s usable page block as well. A cavity must fit inside the pages while leaving enough intact material around it for the book to stay firm and close flat.
| Check | Practical target | Why it matters |
|---|---|---|
| Side clearance | At least 5 mm per side | Helps prevent a tight, difficult fit |
| End clearance | At least 10 mm at each end | Gives room to lift the phone out |
| Depth | Phone thickness plus non-compressing room | Avoids pressure on the screen or buttons |
| Spine and cover | Leave intact; do not cut the hinge | Helps the book remain stable |
Do not treat these numbers as universal phone dimensions. Measure your own device and case. If the phone cannot be lifted out with a gentle grip, enlarge the cavity or choose a different book.
Worked fit example
Suppose a cased phone measures 160 mm long, 75 mm wide, and 10 mm thick. With the stated clearance targets, plan an opening at least 180 mm long and 85 mm wide. The depth must accommodate the phone without compressing it; check the closed book rather than assuming a specific added allowance.
This example is for measuring only. Your device may have a camera bump, raised buttons, or a case that changes the fit. Test the actual phone before finishing the cavity, and make sure it does not catch when lifted out.
Hollow, line, and test the book
Cut slowly and remove pages in stages instead of trying to make the full cavity at once. Mark the opening on the page block, keeping the cut away from the spine hinge and leaving an intact outer page block. A sharp craft knife can slip, so work on a stable surface and keep hands clear of the blade.
- Survey the location. Pick a dry, stable shelf away from heaters, direct sunlight, and damp areas. Check that the book can sit upright or flat without heavy objects pressing on it.
- Mark the opening. Use the measured cavity size and keep the outline centered enough to leave a firm border. Avoid cutting into the spine or weakening the cover hinge.
- Remove pages gradually. Make several controlled cuts, removing a small amount at a time. Stop to check the shape and depth; do not force the phone into an unfinished opening.
- Smooth the edges. Clear loose paper and use a thin, non-shedding liner if needed. Avoid thick foam or fabric that can trap heat, shed fibers, or make inspection difficult.
- Test the fit. Place the phone in the cavity, close the book, and check for bulging or pressure. Confirm that you can remove the phone without tugging its buttons or catching the camera.
- Choose the final position. Store the book upright or flat, without heavy items stacked on it. Keep it away from heat and moisture.
Do not glue the phone into the cavity. It should lift out freely for use and inspection. If the cover bows, the phone sits under pressure, or the book is unstable, the fit is not right.
Store the phone safely and keep it accessible
A closed book is a poor place to charge a phone. The cavity can retain heat, and the closed cover can conceal signs of battery trouble. Take the phone out before charging, and never route a charging cable through the spine or cover.
If the battery looks swollen, the screen or case is lifting, or the phone becomes unusually hot, stop using it and follow the phone maker’s safety guidance. Do not return it to the book. A hidden device is harder to inspect, so check it regularly and keep the cavity clean and dry.
For long-term storage, follow the phone maker’s battery instructions. Apple, for example, recommends storing its devices at about 50% charge and below 32°C ambient temperature for long-term storage. That advice is Apple-specific, not a universal rule for every phone. Check the instructions for your model before putting it away for an extended period.
Keep emergency access in mind. A hidden phone is not useful if nobody can find it when needed. If it is a backup device for a household member, agree on its location and check that it can still power on when you plan to use it.
Practical examples and storage choices
These examples show how to assess a setup; they are illustrative, not reports of specific installations. The best choice depends on the phone’s size, how often you need it, and whether the storage spot makes regular inspection easy. A hollowed book works best when concealment is more important than quick access or strong theft protection.
| Scenario | Hollowed novel | Better consideration |
|---|---|---|
| A spare phone used rarely | Can suit it if the phone fits loosely and is checked | Keep it out of heat and remove it for charging |
| A phone needed for emergencies | Concealment may slow access | Use a known, easy-to-reach location |
| A thick phone with a large case | May make the book bulge or strain | Choose a larger book or another storage option |
| A device that needs regular charging | Not suitable for charging inside the book | Charge it outside the cavity, then store it unpowered |
In one common planning situation, the phone fits the page block but the book will not close flat. The right fix is not to press harder or cut into the spine. Choose a larger book, reduce the case only if the maker permits it and protection remains adequate, or use another storage method.
In another, the phone fits but slides into a tight corner and is hard to retrieve. That is a failed fit, even if the cover looks flat. Increase the opening until the device lifts out easily, while keeping the spine and enough surrounding pages intact.
Conclusion and FAQ
A hollowed novel can offer discreet, short-term phone storage when the cavity is measured carefully and the phone remains unpowered and easy to inspect. Keep the book away from heat and moisture, never charge inside it, and do not mistake concealment for theft protection. Measure, test, and check the device before relying on the setup.
Can I charge a phone inside a hollowed book?
No. Remove the phone before charging. A closed cavity can retain heat and hide battery swelling or other damage.
How much clearance should I leave around the phone?
As a practical fit target, leave at least 5 mm on each side and 10 mm at each end. These are not code requirements; measure the phone with its case.
Should I measure the phone with its case on?
Yes. Measure the exact device as you plan to store it, including its case and any raised camera area.
Can I cut into the spine to make more room?
No. Keep the spine hinge intact. Cutting it can weaken the book and make it unstable.
Is a hollowed book a safe for valuables?
No. It may keep a phone less visible, but it does not lock or protect the device from someone who searches the book.
Should the phone be switched off?
For this storage method, keep it unpowered and do not charge it in the cavity. Follow the phone maker’s guidance for long-term storage.
What should I use to line the cavity?
If a liner is needed, use a thin, non-shedding material. Avoid thick foam or fabric that can trap heat or make inspection harder.
Where should I keep the book?
Use a dry, stable spot away from heaters, direct sunlight, and damp areas. Do not stack heavy objects on top of it.
How often should I inspect the phone?
Check it periodically, especially before long-term storage or planned use. Look for swelling, unusual heat, damage, and signs of moisture.
Can I hide the charging cable through the cover?
No. Do not route a cable through the spine or cover, and do not add wiring or an outlet for this storage method.
(This article was written by one of our staff writers, Richard Montclair. Visit our Meet the Team page.)
