Recent content by JDMCRX

  1. J

    Strength of 4x4 3/16' Tubing over span of 20ft with weight spread

    Hey guys sorry for the delay . New size and design . Basicly its going to use the wall for support. We will bolt on 3/4" plywood to the walls and use long bolts with steel plates on each side of the wall to sandwich the plates. The bolts going thru the wall will have sleeves on them to limit...
  2. J

    Strength of 4x4 3/16' Tubing over span of 20ft with weight spread

    Sorry the main drawing was not done by me . Thanks tho
  3. J

    Strength of 4x4 3/16' Tubing over span of 20ft with weight spread

    Sorry drawings are up thanks
  4. J

    Strength of 4x4 3/16' Tubing over span of 20ft with weight spread

    Hey guys I found this forum and very informative i must say. My question is i found a similar thread but i am wondering. I am building a punching bag frame for 14 punch bags between the weight of 100-120lbs. The span is 23' by 20'. The span of 23' will be broken up with a support in...
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