Garage Door Materials in Oconomowoc, WI

Steel is the most common garage door material in Wisconsin for good reason. It is strong, it comes in many styles and colors, and it can be insulated. But not all steel doors are alike, and the first spec to understand is gauge. Gauge is a measure of the steel's thickness, and the scale runs backward. A 24-gauge skin is thicker than a 25-gauge skin, which is thicker than a 27 or 28-gauge skin. Thicker steel resists dents and flexing better.

In practice, budget doors often use thinner steel, and higher-end doors use thicker steel or add a second steel skin on the inside. A thin single skin can dent from a bike handlebar or a kicked soccer ball and can flex in a strong west wind. A thicker skin backed by insulation feels solid when you knock on it. If you have kids, a busy driveway or a door that faces open lake wind, gauge is worth paying for.

The other half of steel's story is the coating. Good steel doors are galvanized, then primed and finished with a baked-on paint. That layered protection is what keeps rust away. Rust usually starts where the coating is broken, from a scrape, a dent or salt sitting on the bottom edge. Rinsing the bottom section during winter and touching up chips helps a steel door last much longer.

Insulated steel combines the toughness of steel with a core that slows heat loss and quiets the door. There are two common types of insulation. Polystyrene comes in rigid panels fitted into the back of the steel or between two skins. Polyurethane is injected as a liquid foam that expands and bonds to the steel on both sides. Bonded polyurethane makes a stiffer section, and it generally gives a higher R-value for the same door thickness.

That stiffness matters here more than people expect. When the temperature drops well below zero, a single-layer steel door can feel brittle and noisy, and moisture can freeze along its inside face. A foam-filled door stays quieter, holds its shape better and keeps frost off the inside surface. For attached garages with a bedroom or bonus room above, an insulated door is one of the simplest ways to make that space less of an icebox.

Insulated steel also handles humidity well, since there is no wood to swell or rot. The things to watch are the bottom seal, the section joint seals and the perimeter weatherstrip. Even the best panel will not keep the garage comfortable if the seals are torn or the floor has settled away from the bottom edge. We look at all of that when we talk about doors.

Nothing quite matches a real wood door on an older lake home or a historic house near downtown. Wood takes stain beautifully, shows real grain and can be built in carriage-house, raised-panel or custom designs. Species like cedar and redwood resist decay better than others, and a well-built wood door with quality joinery can look wonderful for many years. It is the traditional choice for the old summer estates around the lakes.

The tradeoff is maintenance. Wood absorbs and releases moisture with the seasons, and humid summers followed by dry, bitter winters put a lot of strain on joints and finishes. The bottom of the door sees snowmelt, splashed slush and road salt. Without regular refinishing, usually every few years depending on sun exposure, the finish breaks down, the wood grays and checks, and the bottom rail can start to rot.

Wood doors are also heavy, which affects spring size and opener choice. If you love the look and do not mind the care, wood is a great choice and we are happy to install one. If you want the look without refinishing, composite or a woodgrain steel door is worth seeing side by side before you decide.