Subject	At that length and support, there is very
Posted by	Keaner on March 01, 2009 at 10:47 PM
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In Reply To	Don't really care for the cross grain bending in the top posted by not4resaleZ on March 01, 2009 at 08:35 PM
Message	little shot of that breaking, especially under such a small amount of weight. See [ http://www.atvconnection.com/Departments/ATV_Tech/Tech-tip-25-Loading-Ramp-Technique.cfm ] it is very popular for loading ramps for motorcycles to use 2x10 or 2x12 in this same manner. In those cases (especially in that picture) the boards are holding up fine (though bending a little) under more than 400lbs each, but over a 10ft span or so. The length of THESE boards is less than two feet, and only holding around 900 lbs each, well within their strength limits. For straight compression, a 2xX is supposed to be able to hold roughly 500-700 PSI, which means that this board is more or less overkill, especially in this situation. I wouldn't be afraid whatsoever, those are in an extremely strong configuration. Rapid City Invasion 2009 'Data' reporting in.
Follow Ups	Extreme Ni[X]it blocks and 6 ton jack stands = over kill? - ZEVAN (Ca) 19:18:03 03/01/09 Re: Extreme Ni[X]it blocks and 6 ton jack stands = over kill? - nissansx 19:59:39 03/01/09 www.homedepot.com - BigTDogg (MA) 20:01:34 03/01/09 (8) 2"x4"x8' (2) 2"x12"x8' - ZEVAN (Ca) 20:08:43 03/01/09 appreciate it. thanks. (n/m) - nissansx 20:18:23 03/01/09 I just used four jackstands, my car was held up fine (n/m) - sammystubag 20:16:15 03/01/09 been workin' for me... (n/m) - MAD_96TT(MO) 22:27:41 03/01/09 Don't really care for the cross grain bending in the top - not4resaleZ 20:35:39 03/01/09 2nd. (n/m) - nemo1080 (Iowa) 21:28:14 03/01/09 So make the top two 2x12s - BobbyT 22:29:52 03/01/09 At that length and support, there is very - Keaner 22:47:28 03/01/09 I think they would be fine as well, but.. - LordZ 08:06:07 03/02/09 The ramps you are showing are spanning with the - not4resaleZ 10:11:35 03/02/09 Now that I look at them again, - Keaner 13:45:21 03/02/09 Exactly, the wood would have to compress, the weight is not - Barry (NJ) 14:58:32 03/02/09 Keaner you are very wrong! - not4resaleZ 10:19:16 03/02/09 you would be better off with six 2x4's vertically - Adam (NoVA) 13:27:00 03/02/09 that ain't breaking. THere's not enough exposed surface - moxie (SF) 13:58:41 03/02/09 I've seen people split 2x12s with a chop from their hands. - not4resaleZ 18:57:09 03/02/09 Whats wrong with jack stands? - ZiNnYc 22:03:53 03/01/09 Nice Harbor freight stands (n/m) - WAM_Z32 22:57:00 03/01/09 jenga!!! (n/m) - Z-CARR 23:04:48 03/01/09 Looks good! What was your final cost? (n/m) - Spongerider :) 01:25:44 03/02/09 Total hits: Not enough - BigTDogg (MA) 07:29:41 03/02/09 (Total Hits: a lot). :-P (n/m) - Spongerider :) 10:59:38 03/02/09 No such things as overkill if someone is under the car. (n/m) - icsamerica 08:33:49 03/02/09 Agreed. (n/m) - AbsolutZ 09:45:27 03/02/09 isn't it a pain to get the car that high up with floor jack? - LJZTT 09:06:11 03/02/09 These are dangerous, not overkill. Not4resaleZ is right. - Yoshi 10:30:02 03/02/09 For those of you with concerns...the weight of the car - ZEVAN (Ca) 11:20:33 03/02/09 You're smart to use jack stands in addition. Just one break - Yoshi 13:14:25 03/02/09 Thanks. I think everyone got caught up in pictures and - ZEVAN (Ca) 14:14:30 03/02/09
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