Alloy Gutter Company offers 2 different sizes of gutters. We have 5 and 6 inch gutters. These gutters come in 2 styles; we offer K-Style and Half Round. 5” K-style Gutters are commonly used for residential houses, while 6” is commonly used for commercial buildings. This is not always the case however, if your house gets quite a lot of rainfall we would recommend a 6” gutter to collect all that rain. To determine the size of the gutter you will need to measure from the back to the front of the gutter mouth or opening, as shown in the diagram below. Pictured below are the different types of gutters we offer. Both styles come in either 5” or 6”, whichever suits your needs.