conversion of lineal feet on a diagonal deck

Don't know how to calculate the area of your garden or circumference of a pond? Ask your question here.
Forum rules
Dear convert-me.com forum visitors,

Our forum has been available for many years. In September 2014 we decided to switch it to read-only mode. Month after month we saw less posts with questions and answers from real people and more spam posts. We were spending more and more resources cleaning the spam until there were less them 1 legitimate message per 100 spam posts. Then we decided it's time to stop.

All the posts in the forum will be available and searchable. We understand there are a lot of useful information and we aren't going to remove anything. As for the new questions, you can always ask them on convert-me.com FaceBook page

Thank you for being with us and sorry for any inconveniences this could caused.

conversion of lineal feet on a diagonal deck

Postby Stu » Tue Apr 01, 2008 10:39 am

I have a 12' x 24' deck of 288 square feet. I want to run 4" width deck boards on a diagonal of 45 degrees. How do I calculate proper amount of lineal foot boards (20', 18', 16') to avoid waste. I am donating my time and costs to a church.
Stu
 

Re: conversion of lineal feet on a diagonal deck

Postby Guest » Tue Apr 01, 2008 7:37 pm

Stu wrote:I have a 12' x 24' deck of 288 square feet. I want to run 4" width deck boards on a diagonal of 45 degrees. How do I calculate proper amount of lineal foot boards (20', 18', 16') to avoid waste. I am donating my time and costs to a church.


4" is one-third of a foot. The deck will use 3 x 288 = 864 linear feet. BUT the 45° cuts on the ends will result in larger than normal scrap. I would allow for 10-12% scrap, so 950-970 feet.

A board across the diagonal will be about 17' plus a 4" allowance for the (second) angle cut, so 18' boards will be required if you want one piece across.

It appears 26 boards (18') would do a parallelogram in the middle of the deck, leaving two triangular pieces on the ends.

Another 26 boards should fill in the triangles on the end. If you cut the long boards first, the scrap should be able to fill in the pieces near the apex of the triangle. To play it safe, I would probably get 20 18-footers and 6 20-footers. to have some longer cut pieces for the apex of the triangles.

You might squeak by with 52 18-footers, but I would recommend 46 18-footers and 6 20-footers. That makes zero allowance for bad lumber, only for the unavoidable loss of short useless pieces of scrap including 45° cuts.
Guest
 


More info

  • List of all units you can convert online
  • Metric conversion
  • Convert grams to cups
  • Grams to milliliters
  • Imperial vs US Customary
  • History of measurement
  • Return to Calculating things

    Our Privacy Policy       Cooking Measures Converter       Metric conversions