using 2x8 treated lumber?
grullablue
13 years ago
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john_hyatt
13 years agogrullablue
13 years agoRelated Discussions
Treated lumber base for Polycarb greenhouse
Comments (7)As a side note concerning the use of concrete versus other foundation materials: many municipalities use concrete as the determining factor whether a greenhouse qualifies as a "permanent" structure, and therefore requiring permits. This doesn't apply to most people, but here in coastal Florida if a structure is deemed "permanent", it also must meet stringent hurricane codes. Just the designing and architect-certified plans can run $1,000+, and construction of a reasonably-sized greenhouse able to withstand 120mph winds (!) can run $15,000 easy. I'm in the planning stages for a better greenhouse than my present one, and have to go with a lumber foundation. This makes it a "temporary" structure (i.e. can be disassembled "easily"), and won't raise eyebrows. Bruce C....See MoreTreating my untreated lumber??
Comments (16)Treated lumber is toxic! It contains large amount of arsenic and heavy metals (chromium) such as copper. I don't know what you think is "iffy" about this stuff being bad for you. It won't make you drop dead in one season but chronic exposure to these chemicals will effect your health in an adverse way. There are lots of articles on CCA (chromated copper arsenate) treated wood. Think of the following most of this stuff is coming from overseas now, where quality control might not be as concisions as it should be. Also this industry is worth billions of dollars and as you know big business hates bad press. Why trust a bunch of people out to just make a buck, they don't care much about you slowly poison yourself. Look at asbestos if you belief the press when it was popular it was like mothers milk. If you think the scientific research is still out on this subject you are naïve. Read a little between the lines and they say that these chemicals donÂt leach very far (which means they are not held in the material like they are supposed to be), and plants take up everything that is in the soil. They say organic & inorganic arsenic are in everything and the FDA gives safe level as 40ppm. However, al the studies I have seen donÂt focus on large amounts of chromium & copper poisoning which we know is bad for you. Hey this stuff is fine around the flower beds, as long as you donÂt compost it and move it to you vegetables the next year. Hey the day I see the these scientists and industry moguls growing there own food in planted made of this stuff and feeding it to their children & grand kids IÂll think about doing the same. No body is willing to say sure go a head it's safe they only give you conditions and try to chaing the subject. Why take a risk with your health? Hey if a termite wonÂt eat this stuff or a mold wonÂt grow on it why should I put this stuff in my body? Think about this, it may save you a lot of pain in the long run. There is an alternative now ACQ®, which stands for alkaline copper quat. Also Trex looks okay, but what's wrong with redoing you beds every few years. CloneZero...See MoreNeed some advice for new SFG...
Comments (10)Ribbit, I haven't seen the guy's beds, but I have a feeling I know what you're talking about. To give myself a little instant gratification, I bought a couple beds from a company based out of New Zealand that sells pre-made raised beds (they call them collars). They have these special hinges on them so that you just connect two pieces together, drop a pin in, and your bed is built. I wish I knew what the hinges were called or where to buy some because it'd make raised bed building a cinch. Anyway, the beds are made out of lumber that's kind of crappy and probably won't last too many seasons, but they were only (heh only) around $35 each, so I thought it was a decent deal. If they're the same type of beds, they are most definitely not as nice and pretty as the ones made from the landscaping timbers, which I find to be really, really attractive. I'd thought about building a bed out of stacked pavers, but my front yard is teeny tiny, like maaaaybe 6' or 7' wide, so losing out on a couple feet of space just for the walls of the bed would be a bad idea. As far as pressure treated lumber, I'm currently growing some veggies in a couple terraced areas in the backyard that are made with PT lumber, and I haven't worried much about it....See Morebuying pressure treated lumber
Comments (7)Yes, HD lumber is usually really low quality. For PT, the tag on the end of the board tells about the treatment process. The good PT has 0.40 PCF (pounds per cubic foot) of chemical treatment. This is good for ground contact or weather exposure. The chemical itself is ACQ, copper naphthenate, or other. I don't think the actual chemical is as important as the level of treatment. The stuff at HD has less chemical treatment, about half as much, if I remember correctly from the label. If you have a whole project to do, I recommend ordering a unit of #1 select structural from a local lumberyard. They can get it treated from their supplier. I just recently got some Doug Fir #1 structural grade lumber pressure treated. It was about 15-25% higher price, but the quality of the wood is WAY better. Most PT lumber is structural grade for the 4x and up, but the 2x is #2. Because the treatment process weakens and derates the lumber's load capacity, building can become a challenge if the boards are already all split and cracked. Stair stringers are the worst if you use 2x12 #2 PT. They tend to crack down the middle and all the steps you just carefully cut fall off. It is hard to get 2x12 #1 PT for only a few pieces in order to complete some stairs because of the special order thing. But if you order all the 2x material (stringers, joists, and decking) #1 PT, the supplier is happy to fill your order quickly....See Moreweedyacres
13 years agogrullablue
13 years agojohn_hyatt
13 years agogrullablue
13 years agoweedyacres
13 years agojohn_hyatt
13 years agogrullablue
13 years agoweedyacres
13 years agojohn_hyatt
13 years agogrullablue
13 years agoSunny K
6 years agolast modified: 6 years agoGN Builders L.L.C
6 years agoSunny K
6 years agoGN Builders L.L.C
6 years agoSunny K
6 years agoGN Builders L.L.C
6 years agoFreddie Yarosz
3 years agoTipton Spires Design|Build
3 years agolast modified: 3 years ago
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