Announcement

Collapse
No announcement yet.

Calcutlating the weight of glass

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Calcutlating the weight of glass

    Is there a formula for calculating the weight of glass. I am using a .5" thick piece of tempered plate glass that is 8 feet by 8 feet. I know a cubic foot of glass is 161 pounds, but I am not sure waht kind of glass that would be.

    Thanks,

    Jerry

  • #2
    Jerry,
    Depends on how close you want to be with the weight. My tables give 2500kg per cubic meter which is about 156 lbs per cubic foot. This is for typical float glass, so I guess somewhere between your figure of 161 and mine of 156 would be on the money. 415 lbs against 429 lbs.

    Ian

    Comment


    • #3
      If you want to be sure what your particular type of glass wieghs,use the specific gravity test
      I just need one more tool,just one!

      Comment


      • #4
        I have a simple test for weight, call the vendor.

        Thanks for the help.

        Jerry

        Comment


        • #5
          Plate glass has a density of 2.4 grams per CC. Pure silica glass is 2.203 g per CC. Borosilicate glass is 2.44. Lead crystal is around 2.8 depending on lead oxide content.
          Free software for calculating bolt circles and similar: Click Here

          Comment


          • #6
            If you can heft the panel, put it on your bathroom scale, or maybe two of them. divide the weight you get by 2-2/3 (2.66667), and that'll be the weight per cubic foot, since your 8'x8'x0.5" comprises that many cubic feet. If you can't heft it, get somebody to help you. If you need to use two scales, add the two weights you get to bet the total weight.
            Terry

            Comment


            • #7
              .

              [This message has been edited by pgmrdan (edited 03-08-2004).]

              Comment


              • #8
                JF,

                Mind if I ask what you are doing with a piece of glass like that?
                Free software for calculating bolt circles and similar: Click Here

                Comment


                • #9
                  I'd also like to know the use of the glass, and the need to know the weight that precisely. Or would you have to kill the lot of us if you told us?
                  I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

                  Comment


                  • #10
                    Bathroom scales are not that accurate: +/- 5 pounds or so. Also, the calculations from it's density could be off if the thickness varies from the nominal. I'm not too sure I would trust a density figure from the supplier either.

                    If you need an accurate figure I would suggest weighing it with a certified scale or carefully weighing a 12" x 12" sample on such a scale and multiplying up to your size.
                    Paul A.
                    SE Texas

                    Make it fit.
                    You can't win and there IS a penalty for trying!

                    Comment


                    • #11
                      My digital bathroom scale is accurate to +- 250 grams. It is made with plate glass and load cells.
                      Free software for calculating bolt circles and similar: Click Here

                      Comment

                      Working...
                      X