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  • Help with Load Ratings for Wood

    I realize this has zip to do with scrolling but I've had no luck in searching and asking elsewhere. I just received an order for a custom entertainment center. That's the easy part. The TV weighs 260 lbs. At one time I had a chart which listed different species of wood and the amount of weight they could handle without sagging over different spans. As this will be a black piece, I will be using oak, both for strength and ease of ebonizing it. The shelf that the TV will be sitting on will span about 4 ft (a little more than 1 meter for everyone not in the US, hehehe). I'm thinking 3/4" oak HVHC ply with a single reinforcement in the center of the span will be sufficient to hold the weight but hope to confirm this.
    Anyone????
    Thanks.
    Kevin
    Scrollsaw Patterns Online
    Making holes in wood with an EX-30, Craftsman 16" VS, Dremel 1680 and 1671

  • #2
    Kevin, I would think with that piece in the center that it would be plenty of support. How will the ends be supported? Good luck with it.
    Mick, - Delta P-20

    A smile is a small curve that straightens everything out.

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    • #3
      Originally posted by Mick Walker
      How will the ends be supported? Good luck with it.
      Thanks for the response Mick. Of course, you bring up the other challenge to designing this piece. They want it 6' high. I know a Dado isn't going to cut it (no pun intended) so I'm figuring out a way to reinforce the sides without detracting from the piece.

      Kevin
      Kevin
      Scrollsaw Patterns Online
      Making holes in wood with an EX-30, Craftsman 16" VS, Dremel 1680 and 1671

      Comment


      • #4
        Somewhere at home I have a fairly recent magazine that covers shelf spand loads. I will look for it tonight.
        Dan

        -Just do'in the best I can every day

        Comment


        • #5
          Hi Kevin,

          Here is the solution you require :

          http://www.woodbin.com/calcs/sagulator.htm

          Regards,
          Marcel
          http://marleb.com
          DW788. -Have fun in the shop or it isn't a hobby anymore.

          NOTE: No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced.

          Comment


          • #6
            Originally posted by Marcel in Longueuil
            Hi Kevin,

            Here is the solution you require :

            http://www.woodbin.com/calcs/sagulator.htm

            Regards,
            Marcel
            YAY!!!!! That be it. Thanks a ton Marcel!!!!!!!!!
            Kevin
            Scrollsaw Patterns Online
            Making holes in wood with an EX-30, Craftsman 16" VS, Dremel 1680 and 1671

            Comment


            • #7
              Now thats a nice link , thanks from me too, Marcel. I can use that too. Evie

              Comment


              • #8
                Thanks Marcel, I just saved that link.
                Chuck D


                When a work lifts your spirits and inspires bold and noble thoughts in you, do not look for any other standard to judge by: the work is good, the product of a master craftsman.
                Jean De La Bruyere...

                l
                Hegner 18, Delta p-20, Griz 14 inch Band saw

                Comment


                • #9
                  sawdustus of hiawatha

                  Thank you Marcel!!!! I have been using R. Bruce Hoadley's formulas from Understanding Wood to do the calculations. Quite tedious to say the least. Great site. It is now in my favorites list.
                  A day without sawdust is a day without sunshine.
                  George

                  delta 650, hawk G426

                  Comment


                  • #10
                    That is a very usefull link. The article I was talking about also took into consideration any edge banding you use to either dress up the edge of plywood or to add thickness to the shelf.

                    I looked last night and could not find it. I will look in the magazines electronic index to see if I can find it.
                    Dan

                    -Just do'in the best I can every day

                    Comment

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