Most downspouts are rectangular but they can also be round or square.
Standard gutter size australia.
Design of eaves gutters box gutters downpipes to the australian national plumbing code as nzs 3500 3.
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.
Measure your gutter across the top from the back where the gutter meets the home to the outer edge.
There is no limit to downpipe size or eaves gutter size.
There are two main common sizes of gutters and one of them is 5 inch.
Quantity and placement of downpipes.
Particular reference should be made to the correct sizing of gutter.
And the provision of appropriate overflow devices.
Roof drainage systems should be designed and detailed by a suitably qualified trade or professional in accordance with the bca and the australian standards.
Gutter downspout sizes are 3 to 6 inches.
See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.
The larger a gutter downspout the more water it can drain quickly.
There is detailed government legislation regarding the design installation and maintenance of guttering.
Calculators for designing eaves gutters box gutters downpipes pipes and open channels etc to australian standards.
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.
Stratco gutters are strong yet lightweight making them easy to handle.
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.
This is most common in the k style gutters.
Pre manufactured gutter mitres and gutter angles for many guttering profiles reduce the need for creating mitres on site therefore simplifying the installation.
