Gravel Instead Of Gutters . You may see an influx of granules in your downspouts after a storm. Gutters that can be installed by joining small sections are called sectional gutters, which can be done by any person at home. Underground Gutters Fine Homebuilding from www.finehomebuilding.com The 10 best gravels for drainage. The material of the gutter also factors into the price. Instead of a concrete apron, stone or gravel can be used to catch the rainwater.