Most sturdy solid-wood and metal furniture can survive an unheated unit over a Wisconsin winter if it is clean, dry, and well covered, but veneer, upholstery, leather, mattresses, electronics, and antiques are more at risk. Skyline Storage Company in Janesville offers standard storage units from 5 by 10 up to 11 by 40 feet.
Wisconsin winters bring long stretches below freezing, followed by thaws that leave moisture on cold surfaces. Furniture does not mind cold alone, but it dislikes damp. When temperatures swing, condensation can form on metal, glass, and finishes, and moisture can soak into wood, fabric, and cardboard.
The real threats are moisture, swelling and shrinking, and mildew once spring warms the unit. Items that were dry and sealed going in usually come out in better shape than items that were stored damp.
Solid hardwood tables, dressers, and bookcases generally handle cold well, especially when they are clean and dry. Metal furniture, plastic bins, patio sets, and sturdy shelving also do fine, as long as you wipe away moisture and protect the finish.
Large pieces made of simple materials tend to fare best. The fewer glued joints, veneers, upholstery layers, and delicate finishes, the lower the risk.
Veneer and laminate pieces can lift, bubble, or crack when moisture and temperature swing. Upholstered sofas and chairs can absorb moisture and grow mildew, and leather can dry, crack, or discolor. Mattresses can pick up moisture and odors.
Antiques, glued joints, and finished pianos or instruments are also sensitive. Electronics can fail when cold or condensation reaches them, and liquids such as paint and cleaning products can freeze and burst. If an item would be expensive or impossible to replace, consider keeping it somewhere heated.
Preparation makes the biggest difference. Clean and fully dry every piece before it goes in, and let upholstered items air out. Wrap furniture in breathable covers or blankets instead of plastic, which can trap moisture against the surface.
Take off drawers and doors if you can, tighten loose hardware, and keep small parts in labeled bags. Add moisture-absorbing packets to drawers and cabinets, and avoid stacking items directly against the walls.
Keep furniture off the floor on pallets or boards so cold and moisture cannot wick up from the concrete. Stand mattresses and sofas on end, and leave a small gap between items and walls for airflow. Put the heaviest pieces at the back, and keep a narrow aisle so you can check on things.
Use sealed plastic bins for small items instead of cardboard, and avoid storing food or anything damp. Visit once or twice during the winter to check for dampness, odors, or signs of pests.
The facility lists a range of sizes. A 10 by 10 unit holds the contents of a one- to two-bedroom apartment, a 10 by 15 holds a two- to three-bedroom home, and a 10 by 20 holds a three- to four-bedroom home. Larger sizes up to 11 by 40 feet are available for bigger moves, vehicles, or equipment, and a few sizes currently have waiting lists.
Choose the smallest unit that holds everything with room to reach the back. Measure your largest pieces, and remember that sizes are approximate.
If you plan to store sensitive furniture, ask whether the facility offers heated or climate-controlled units. Skyline Storage Company's rent page lists standard units and doesn't mention climate control, so ask the team what to expect before you decide. You can read more on its self storage guide page.
Furniture can survive a Wisconsin winter in a standard unit when you choose the right pieces and prepare them well. Keep delicate items somewhere protected, and give sturdy items a clean, dry, covered spot.
If you are planning winter storage in Janesville, Skyline Storage Company can help you find a unit that fits. Book Online to check availability and reserve your space.