Box Gutter Size Calculator

If a roof s various drainage areas call for different size gutters go for the biggest one k style.

Box gutter size calculator.

This calculator has been created and designed for excel 2013 for windows. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. 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. 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. 6 inch 7 960 square feet. Learn more how to storm water design for building sites. 5 inch 5 520 square feet.

Then use the information below to see what size gutter you need. It is a ms excel file and uses data contained in ncc volume two for the calculations. 5 inch 5 520 square feet. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

Then use the chart below to see what size gutter you need. Based on the location roof design and overflow types the calculator provides the allowable gutter types downpipe sizes and whether the selected overflow measures are adequate. The side with the maximum flow is used to size the box gutter.