This calculator has been created and designed for excel 2013 for windows.
Box gutter size calculator.
5 inch 5 520 square feet.
Then use the chart below to see what size gutter you need.
The side with the maximum flow is used to size the box gutter.
5 inch 5 520 square feet.
The total flow is used to size the sump and overflow.
Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
This free online box gutter calculator will calculate the size of box gutters and sumps with a side overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage.
Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
It is a ms excel file and uses data contained in ncc volume two for the calculations.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
6 inch 7 960 square feet.
Northclad gutter size requirement calculator this calculator uses current data to calculate the required size of gutter as well as number and size of downspouts based on your input.
Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head.
We recommend using this calculator as a basic tool to begin determining the requirements for your drainage system however all information should be verified by.