Gutter Board Measurements

Gutter per 20 foot run.

Gutter board measurements.

Drive a nail at this mark and stretch a chalk line between the two nails. The availability of 7 inch top width k style gutter has been poor in the past. For half rounds 5 inch should be used for up to 2500 sq feet and 6 inch for up to 3 840 sq ft. If you don t have a drip edge mark the measurements on the edge of your roof or on the fascia board itself.

See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. Rafters are usually spaced 12 in 30 cm 16 in 41 cm or 18 in 46 cm apart on center. To ensure comfort is preserved as long as possible the gutters must be clean. This corresponds to a minimum top width of 6 inches.

Finally measure and add the heights from the ground to the roofline in the locations where the downspouts will go. The planks of wood themselves shall be 15cm wide by 2cm thick. This gutter size works with large high roofs and a large volume of water. The importance of proper gutter sizing.

Gutters come in different sizes. The presence of gutters makes life in the house comfortable. After you have calculated the square footage use following calculations. For a 5 inch k style gutter the square footage should be up to 5 500 sq ft and for a 6 inch k style gutter the square footage should be upto 7 900 sq ft.

A 6 inch gutter with a 3 liter sink provides good drainage. Measure and record the distance from the bottom of the fascia board to this nail. Downspouts also come in different sizes such as 2 3 inches and 3 4 inches in size. They can be 4 5 or 6 inches.

If there is damage replace the fascia plate. If you aren t able to make marks use the measurement between your rafters as a guide. Align a level with the string to check the slope. However in recent years some seamless forms of 7 inch gutter as well as other sizes have become available.

If you are replacing an existing gutter system once the old system is removed check for rot along the fascia board. The use of 4 x 5 downspout outlets starts at a depth of gutter of 4 5 inches. For every 10 feet of gutter from this measurement and mark this distance at the low end of the gutter run.