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#1
05-04-2006, 05:43 PM
 Wendy1 Guest Posts: n/a
Need help sq ft to tons

I would like someone to help me find out how to go from square feet to number of tons needed: For example my driveway is 18 x 63 feet = 1134 sq ft. My driveway needs to have 4" of asphalt. How may tons will that require?
#2
05-05-2006, 05:39 PM
 Robert Fogt Administrator Join Date: Dec 2005 Location: Seattle, WA Posts: 3,467 Rep Power: 13
Re: Need help sq ft to tons

You can calculate volume using one of the following formulas:

volume = length * width * height
volume = area * height

though both need to be in the same base unit, so convert inches to feet first.

1134 square feet * (4 inches / 12) feet = 378 cubic feet

Now to convert volume such as cubic feet to weight such as tons, it depends on the density of the substance. If you let me know the substance I may be able to look up the density.

For example, sand would have a different conversion than gravel.
#3
07-21-2006, 02:07 AM
 Unregistered Guest Posts: n/a
Re: Need help meter cube to tons of granite

hi Robert fogt,

pls help for the above.

Thanks.

Robert Oseghale

Quote:
 Originally Posted by Robert Fogt You can calculate volume using one of the following formulas: volume = length * width * height volume = area * height though both need to be in the same base unit, so convert inches to feet first. 1134 square feet * (4 inches / 12) feet = 378 cubic feet Now to convert volume such as cubic feet to weight such as tons, it depends on the density of the substance. If you let me know the substance I may be able to look up the density. For example, sand would have a different conversion than gravel.
#4
07-21-2006, 01:37 PM
 Robert Fogt Administrator Join Date: Dec 2005 Location: Seattle, WA Posts: 3,467 Rep Power: 13
Re: Need help sq ft to tons

Crushed asphalt is 45 pounds/cubic foot

378 cubic foot * 45 pounds/cubic foot = 17010 pounds

17010 pounds / 2000 = 8.5 tons
#5
10-13-2006, 12:41 PM
 Jack Guest Posts: n/a
Re: Need help sq ft to tons

[My parking lot is 6,500 sq. ft. 1 1/2 inches thick of asphalt How any tons are required?
#6
10-13-2006, 10:44 PM
 Robert Fogt Administrator Join Date: Dec 2005 Location: Seattle, WA Posts: 3,467 Rep Power: 13
Re: Need help sq ft to tons

6500 square foot * (1.5 inches / 12) foot = 812.5 cubic foot

812.5 cubic foot * 45 pounds/cubic foot = 36562.5 pounds

36562.5 pounds / 2000 = 18.28 tons
#7
04-20-2007, 05:43 PM
 DARREL Guest Posts: n/a
Re: Need help sq ft to tons

i WOULD LIKE SOMEONE TO SHOW ME HOW TO CONVERT 224,046 SQUARE FEET IN TONS?
#8
04-21-2007, 12:12 AM
 Mrs X can't count, can't spell! Join Date: Feb 2006 Location: New Zealand Posts: 2,443 Rep Power: 12
Re: Need help sq ft to tons

Hi, square feet is an area, which doesn't have any weight. To work out what weight you need or have, you need two more parameters. You need the depth of the area you are interested in, and you need the density of the substance you want to remove (or fill it with).

Density is the weight for volume of a particular material. As you can see from the above posts, crushed ashphalt is 45 pounds per cubic foot.

This means if you have a box of ashpahlt which is 12" x 12" x 12", then the ashphalt will weigh 45 pounds. A cubic foot of a different material will probably weigh a different amount.

To answer your question, work out how many cubic feet you need, then work out how much that many cubic feet will weigh.
#9
08-17-2007, 08:18 PM
 neutle2 Guest Posts: n/a
Re: Need help sq ft to tons

I would like to find how many tons of crusher run I would need for my drive 10' x 450' x 3" any help in this area would be greatly appreciated. And how you figure it.

Thanks.
wizard of math, I'm not
#10
09-04-2007, 09:46 AM
 Unregistered Guest Posts: n/a
Re: Need help sq ft to tons

360' x 1080' x 2" deep is how many tons

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