5-Inch vs. 6-Inch Gutters: Which Size Does Your Mobile, AL Home Need?
Mobile gets more than 60 inches of rain a year. Here is how to size gutters that keep up.
When homeowners in Mobile get a quote for new gutters, one of the first questions is size: 5-inch or 6-inch? It sounds like a small detail, but on the Gulf Coast it can decide whether your gutters handle a summer thunderstorm or spill water over the edge onto your foundation. Here's how to choose the right size for your home.
What "5-Inch" and "6-Inch" Gutters Actually Mean
The number refers to the width across the top of a K-style seamless gutter, the most common profile on Mobile homes. A 6-inch gutter is only an inch wider, but it holds roughly 40% more water than a 5-inch gutter, and it's usually paired with larger 3x4-inch downspouts instead of 2x3-inch. That combination is where the real difference shows up in a downpour.
Why Size Matters More in Mobile Than in Most Cities
Mobile regularly ranks among the rainiest cities in the United States, averaging more than 60 inches of rain a year. Just as important as the total is how fast it falls. Afternoon thunderstorms and tropical systems can drop several inches in a short time. Gutters are sized for that peak rate, not the average, so a system that's fine in a gentle rain can overflow in a Gulf Coast storm.
When 5-Inch Gutters Are Enough
- Smaller, single-story homes with modest roof areas
- Low-slope roofs where water moves more slowly
- Roof sections with plenty of downspouts spaced close together
- Porches, sheds and small additions
Paired with enough properly placed downspouts, a 5-inch system can work well on many Mobile homes and costs a little less.
When You Should Choose 6-Inch Gutters
- Large or two-story homes where a big roof area drains into one run of gutter
- Steep roofs, where water hits the gutter faster and tends to overshoot a smaller trough
- Valleys where two roof planes funnel water into one corner
- Homes under pines and oaks. A wider gutter and bigger downspout are less likely to clog, especially with gutter guards on top.
- Metal roofs, which shed water quickly and with more force
For many homes in West Mobile, Spring Hill and the newer neighborhoods off Schillinger and Cottage Hill, 6-inch gutters with 3x4 downspouts are the safer choice.
Downspouts: The Other Half of the Equation
Even the right gutter size will overflow if water can't get out fast enough. Downspout size, number and placement matter just as much. A good rule is a downspout at least every 30 to 40 feet of gutter, with extra downspouts near valleys. Where water drains toward the house or a driveway, underground drains and downspout extensions carry it well away from your foundation, which is important on Mobile's clay-heavy soils.
Does Gutter Size Affect Curb Appeal?
Not much. Six-inch seamless gutters are only slightly larger and come in the same color options, so they can be matched to your trim or fascia. Most people can't tell the difference from the street, but they'll notice when the gutters don't overflow in the next storm.
Seamless Gutter Installation in Mobile, AL
Southern Gutters LLC is a locally owned gutter company based in Mobile. We measure your roof, look at slope, valleys and nearby trees, and recommend the size that actually fits your home. Then we cut your seamless gutters on site for a custom fit. Every estimate is free and in writing, with no hidden fees, and financing is available.
Call 251-800-1428 or request a free estimate. Want to keep pine straw out too? Read our guide to the best gutter guards for pine straw in Mobile, or see all of our gutter services in Mobile, AL.
