Brushinfool
Member
I have been moving alot of trees lately. Am currently moving a 144" box 55000 lbs. (I sub out crane work)
Up until now I have been lifting the boxes with two heavy web slings or cable rigged under the box and positioned on "skids". Ive done 120" (40000 lbs) boxes like this but get really nervous watching the bottom of the box bulge out and the sides are under a great deal of "pinch" preassure (see photos)
I would like to place two I Beams under the box and lift off them instead. Beams would need to be about 12' long to avoid pinching the box. Anyone know how heavy and of what dimention I beam wou suppport this kind of load. I would generally go way overkill in this department but the beams must be managable by hand and not too tall so as to allow placement under the box. Id like to go with wide flange beams so they dont try to roll when lifting.
Photos are of a 10' boxed oak being lifted, A guy "bottom boxing"
And a closeup of the box under load
Up until now I have been lifting the boxes with two heavy web slings or cable rigged under the box and positioned on "skids". Ive done 120" (40000 lbs) boxes like this but get really nervous watching the bottom of the box bulge out and the sides are under a great deal of "pinch" preassure (see photos)
I would like to place two I Beams under the box and lift off them instead. Beams would need to be about 12' long to avoid pinching the box. Anyone know how heavy and of what dimention I beam wou suppport this kind of load. I would generally go way overkill in this department but the beams must be managable by hand and not too tall so as to allow placement under the box. Id like to go with wide flange beams so they dont try to roll when lifting.
Photos are of a 10' boxed oak being lifted, A guy "bottom boxing"
And a closeup of the box under load