Some homeowners choose to upgrade to a Six inch gutter. This gutter will handle about twice the amount of water that a Five inch gutter will. This homeowner went with a six inch gutter and a 4×5 downspout and Leaf Solution gutter guards. The 4×5 downspouts are rarely used on residential homes. They are usually used only on commercial gutter jobs. Most homeowners don’t like the look of the extra large downspouts but sometimes a homeowner want the largest they can get for extra extra insurance. However, if the gutters are kept free of any debris with a micro mesh gutter guard like Leaf Solution then the 3×4 downspouts are plenty big enough.
The six inch gutters do provide a lot more rain carrying capacity for those torrential downpours or for heavy volume areas. Sometimes we install them when there is a large roof area coming to a small area of gutter. It is also important to consider whether you would like the appearance of them.