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back fill required
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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.
2 posts
• Page 1 of 1
back fill required
by knechtion » Fri Dec 16, 2005 8:50 pm
I have a subterrainian garage. How much backfill (dirt) will I need to fill 6ft deep by 4 ft wide by 90 feet long? :?: and how do I due the math to convert to yards?
- knechtion
by Guest » Wed Dec 21, 2005 1:40 am
Im assuming you have a 6' vertical wall and you need to go out 4' then slope it up to natural grade at a 1:1 slope.
wall backfill 6 x 4 x 90= 2160
1:1 slope 6 x 6 = 36/2 = 18 x 90= 1620
total = 3780/27 = 140 CY
One more thing when you compact 140 cubic yards it will shrink different amounts depending on what type of soil it is. 15% is pretty safe for most types though.
So actually you will need. 140 x .15= 21 + 140 = approx. 160 Cubic yards
hope this helps
wall backfill 6 x 4 x 90= 2160
1:1 slope 6 x 6 = 36/2 = 18 x 90= 1620
total = 3780/27 = 140 CY
One more thing when you compact 140 cubic yards it will shrink different amounts depending on what type of soil it is. 15% is pretty safe for most types though.
So actually you will need. 140 x .15= 21 + 140 = approx. 160 Cubic yards
hope this helps
- Guest
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2 posts
• Page 1 of 1