Measure your gutter across the top from the back where the gutter meets the home to the outer edge.
Standard gutter size australia.
This is most common in the k style gutters.
The code limit is 150mm for dp s and 26 800 sq mm for flat eaves gutters the program will calculate the size and number of downpipes downspouts leaders required and the eaves gutter sizes for any roof.
The larger a gutter downspout the more water it can drain quickly.
Pre manufactured gutter mitres and gutter angles for many guttering profiles reduce the need for creating mitres on site therefore simplifying the installation.
There is no limit to downpipe size or eaves gutter size.
However too large a gutter downspout can look unattractive.
See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.
Quantity and placement of downpipes.
Particular reference should be made to the correct sizing of gutter.
But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep rainwater from overflowing.
Roof drainage systems should be designed and detailed by a suitably qualified trade or professional in accordance with the bca and the australian standards.
And the provision of appropriate overflow devices.
There is detailed government legislation regarding the design installation and maintenance of guttering.
Stratco gutters are strong yet lightweight making them easy to handle.
Five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country.
Available in the full range of 22 colours our latest generation colorbond steel gutter fascia and downpipes are made with the same five layer system as our roofing bringing you the benefits of activate technology and the reassurance of 50 years of colorbond steel testing under harsh australian conditions.
You should have enough gutter downspouts to effectively handle the size of your entire gutter system.
Gutter downspout sizes are 3 to 6 inches.
There are two main common sizes of gutters and one of them is 5 inch.