Trusses: Difference between revisions

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(Created page with '600px Truss: *2x4 lumber (3.5x1.5" in the USA). *7/16" oriented strand board (OSB) plates *Plates are 7x16", and the small squares are 7x7" typical *22 inch …')
 
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=2008=
[[Image:truss.jpg|600px]]
[[Image:truss.jpg|600px]]


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*Total cost for new version is about $40 for the same, and I guess that the strength is much higher for the simple wood-OSB sandwich. Just stagger the joints properly. The weak point in the former is the large number of small pieces. The more monolithic, the better.
*Total cost for new version is about $40 for the same, and I guess that the strength is much higher for the simple wood-OSB sandwich. Just stagger the joints properly. The weak point in the former is the large number of small pieces. The more monolithic, the better.


=2010=
[[Image:struss1.jpg]]


[[Category:Trusses]][[Category:Construction]]
[[Category:Trusses]][[Category:Construction]]

Revision as of 00:45, 13 October 2010

2008

Truss.jpg

Truss:

  • 2x4 lumber (3.5x1.5" in the USA).
  • 7/16" oriented strand board (OSB) plates
  • Plates are 7x16", and the small squares are 7x7" typical
  • 22 inch high
  • Vertical after every 2 diagonals
  • Total diagonal length of members from left to righ - 22"
  • Verticals are 15" high
  • Our trusses are 32 feet long

Learnings:

  • If I were to do it again, I would just do the top and bottom parallels, and cover with 24" OSB from 4x8' sheets, on both sides. This is DIY 'engineered lumber'. I call it the wood-OSB sandwich.
  • Total cost of truss shown is about $50 for 32' including nails for nail gun
  • Total cost for new version is about $40 for the same, and I guess that the strength is much higher for the simple wood-OSB sandwich. Just stagger the joints properly. The weak point in the former is the large number of small pieces. The more monolithic, the better.

2010

Struss1.jpg