How Measure Gutter Size

Find the width of the gutters.

How measure gutter size.

How to measure gutters method 1 of 3. K style sizes will typically range from 5 to 6. Move the tape measure so its blade is sitting plumb against the end of the level. The steeper a roof s pitch the more windblown rain it can collect.

Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. 5 10 pack kit 40. 7 and greater are appropriate for churches and larger commercial buildings.

Hold an extended tape measure at the end of the level that is not touching the surface of the roof. If your gutter is 5 inches wide or less you ll need our 5 inch kit. 5 inch standard k style gutter shop 5 gutterbrush. Download our free gutter guide for more helpful information.

5 inch 5 520 square feet. Use your tape measure to determine the length of the twine marking down this calculation. See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

How to measure downspouts. As a general rule egutter recommends for roof areas that exceed 2800 square feet a 6 k style size with a 3 x 4 downspout size would be appropriate. Place a sturdy 20 ft 6 1 m ladder against the roof and climb. Multiply drainage area by 1 3.

How do you calculate gutter size. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. Gutter size is determined by measuring across the top of the gutter to help you understand gutter measurement and dimensions here is a relative comparison in size between 2 3 inch downspouts vs. 6 inch 7 960 square feet.

Calculating the drainage area of a roof. Place a sturdy 20 ft 6 1 m ladder on 1. Measure length of twine mark the measurement with a piece of tape and then pull the twine off of the other end of the gutter. 3 4 inch downspouts likewise a comparison between 3 inch round downspout and 4 inch round downspout.

You can also work with a professional who knows the climate in your area and who understands what size of gutter you need to work with the roof that you have. Then use the chart below to see what size gutter you need.