Storing Guitars, Violins, and Banjos in Utah's Dry Air: Humidity Targets, Neck Relief, and Case Care
Utah's climate is beautiful, but it is hard on wood. Salt Lake City sits in a high desert basin where outdoor air holds very little moisture, and indoor air often dries out even more once the furnace runs through the winter. A guitar, violin, or banjo that sits quietly in a closet can still change shape over a few months.
The good news is that most humidity damage is preventable. With a few measurements, a steady storage environment, and some simple habits, you can keep your instruments playing well for decades. This guide explains the humidity and temperature ranges most luthiers recommend, how to check and correct neck relief, and how to care for cases during long-term storage.
Why Utah's Air Is Hard on Wooden Instruments
Wood is hygroscopic, which means it constantly exchanges moisture with the air around it. When humidity falls, wood releases moisture and shrinks. When humidity rises, it absorbs moisture and swells. These changes are small on any single day, but repeated cycles stress glue joints, finish, and the wood itself.
Dry conditions create the most common problems. Tops can sink or crack, bracing can loosen, fret ends can stick out from the fingerboard, and necks can change their angle. Winter heating is often the biggest culprit, since forced-air systems can pull indoor humidity well below 30 percent when the weather outside is cold and dry.
Swings matter as much as the absolute level. An instrument that moves between very dry and moderately humid conditions every week will age faster than one kept at a steady, slightly lower humidity. That is why the goal is stability, not perfection.
Target Humidity and Temperature Ranges
Most guitar, violin, and banjo makers recommend keeping relative humidity between about 40 and 55 percent. Each instrument has a slightly different sweet spot, and the table below summarizes the ranges commonly cited for storage.
Temperature matters too, but steadiness counts more than hitting an exact number. Avoid storing instruments in attics, garages, or rooms that get very hot in summer and very cold in winter. A room that stays within a comfortable range is usually a better choice than one that swings widely.
How to Measure Humidity Accurately
A digital hygrometer is the single most useful tool for instrument storage. Place one in the room or inside the case itself, and check the reading at least weekly during dry months. Inexpensive units can drift over time, so calibrate them against a saturated salt test or replace them every year or two.
Controlling Humidity at Home
Once you know your numbers, you can adjust them. Most households need active humidity control during Utah winters. A whole-house humidifier tied to the furnace is the most consistent option, while a room humidifier works well for a single closet or music room.
- Choose a humidifier sized for the room, and clean it on the schedule the manufacturer recommends to prevent mineral buildup.
- Use a case humidifier for travel or short-term storage, and check it often, since its moisture output depends on the case's seal.
- Keep instruments away from heating vents, radiators, fireplaces, and sunny windows, all of which create dry or hot microclimates.
- Avoid using a humidifier so aggressively that moisture condenses on windows or walls, which signals that the room has too much humidity.
Some players try to solve dry air by placing an instrument in a bathroom or near a kettle. Those methods create uneven and unpredictable moisture, so a controlled humidifier and a hygrometer are a much safer approach.
Checking and Correcting Neck Relief
Neck relief is the slight forward curve in a guitar or banjo neck that lets the strings vibrate freely without buzzing or choking. Dry conditions often cause the neck to back-bow or straighten, which changes the action and can make the instrument harder to play.
To check relief on a guitar, press the first and last frets of the string at the fret you are measuring, usually around the seventh or eighth fret. Then measure the gap between the bottom of the string and the top of the fret. A common target for acoustic guitars is roughly 0.010 inch, which is about the thickness of two or three sheets of paper.
Adjustments should be small and gradual. Many guitars use a truss rod that can be tightened or loosened with the correct wrench, and a quarter turn can change relief noticeably. Make one small adjustment, wait a few hours, and measure again. If the neck still does not respond, or if you are unsure which way to turn, take the instrument to a qualified technician.
Violins do not have a truss rod. Their necks are set by a luthier, so the correct response to a warped or shifting neck is a professional inspection, not a DIY fix. Many banjos also rely on a truss rod or a neck angle that should be checked by a technician rather than adjusted casually.
Case Care for Long-Term Storage
The case is your instrument's first line of defense. A well-fitted case with a solid latch and intact lining buffers temperature and humidity changes, but it can also trap moisture and dust if it is not maintained.
- Inspect the case lining and seams every few months for cracks, separations, or musty smells, which can signal moisture problems.
- Store the case upright or flat on a shelf rather than on a cold concrete floor or against an exterior wall.
- Keep cases closed when not in use, but do not seal an instrument in a case that holds water or mildew.
- For long-term storage, many technicians suggest slightly reducing string tension so the neck is under less stress while the humidity is changing.
- Remove the instrument periodically to inspect the finish, fretboard, and hardware, and to let it breathe in a stable room.
Never leave an instrument in a car trunk, particularly in summer. Interior temperatures can climb well past safe levels in minutes, and a sudden shift from hot to cold can crack a finish or loosen braces.
Choosing the Right Storage Environment in Salt Lake City
If your home cannot hold a stable humidity range, consider a climate-controlled storage unit. Climate-controlled storage in Salt Lake City keeps temperature and humidity within a narrower band than a standard garage or shed, which is valuable for instruments you do not play every day. Ask whether the facility monitors humidity and whether units are sealed from outdoor dust.
Storage is not the only consideration. Instruments often travel during a home move or a remodel, and that is when the greatest temperature and humidity swings happen. Plan transport so the instruments stay in their cases, spend as little time as possible in an unconditioned truck, and let them acclimate gradually in their new space before opening the case.
Moving Instruments Safely
Guitars and banjos can usually travel in hard cases with padding that prevents shifting. Violins and other fragile instruments benefit from additional protection and careful handling by people who understand their value. Our specialty item moving services cover valuable instruments and other fragile belongings that need extra care.
If you are moving a piano along with your instruments, the requirements are very different because pianos are heavy and sensitive to temperature and humidity. Our piano moving team in Salt Lake City uses specialized equipment to transport uprights, baby grands, and concert grands safely.
Final Thoughts
Utah's dry air does not have to shorten the life of your instruments. Aim for a steady humidity range of roughly 40 to 55 percent, measure it with a reliable hygrometer, check neck relief each season, and maintain your cases. These habits take little time and protect investments that can last generations.
Start today by placing a hygrometer where your instruments live and checking the reading. If the numbers are consistently outside the ideal range, add humidity control or consider a climate-controlled storage option before the next cold snap.