I recently bought a JD green ballast box on craigs list. Without measuring it is 24"w X 20" d X 24" h., its a factory box, filled with cement . Any guesses on how much it weighs ??
The math is off a little
24"=2 feet, 20"=1.66 feet
so: 2x2x2.66 = 6.64 cubic feet
6.64 cubic feet x 150 pounds/cubic foot = about 1000 pound of concrete.
Well you may have been not trying to insult anyone but I would hate to see what you can do when you try. Most third graders can do the math and everyone on here has been doing the math right.How do you guys keep getting 6.64 cu ft? Are you not using the actual dimensions he gave? If so, your rounding errors are giving answers that are way off, as in almost double. That's not close enough for anything.
Sorry, not trying to insult anyone, but I was an engineering tech for 30 years, I know how to do the math, and I have double checked it.
Then ISMurphy said he used 8 cubic feet (rounded the 20 to 24 inches to make the math easy).I recently bought a JD green ballast box on craigs list. Without measuring it is 24"w X 20" d X 24" h., its a factory box, filled with cement . Any guesses on how much it weighs ??
I made the minor correction from rounding 20 inches to 24 to get the next volume (hopefully not insulting ISMurphy) of 6.64 cubic feetA cubic foot of concrete weighs about 150lbs. If my math is correct you have 8 cubic feet.........1200lbs of concrete and about 80lbs for the box...????
1280lbs is my guess.
Then you came in and gave the volume of the 24 x 16 x 19.shocked enough I just went out with a tape measure and measured it. It measures 24"w X 16"d X 22"high...but the cement is down 3" from the top edge. Meaning the cement is 19" thick. .
If you divide the dimensions by 12 inches, you get feet:How do you guys keep getting 6.64 cu ft? Are you not using the actual dimensions he gave? If so, your rounding errors are giving answers that are way off, as in almost double. That's not close enough for anything.
The box is 4.8 cu ft total. He has about 4.2 cu ft of concrete in it now. If the concrete weighs 150#/cu ft, he has 633# of concrete, plus the box, probably 100-115#, based on the advertised weight of comparable sized boxes I have seen.
Sorry, not trying to insult anyone, but I was an engineering tech for 30 years, I know how to do the math, and I have double checked it.
If ya really want to know what it weights load the bitchinthe truck and take it to the truck stop scale, provided that you know how much your truck weighs first,,, oh wait now we re gettin back to doin math again