Flooring over a crawl space
I am getting ready to pull the trigger on a 22x36 shop over a crawl space. I have not compromised on much of anything, I have go to 2 beams instead of 1, the beam are running the 36' span and are triple 2x12's or similar. I am going with 2x12 joists and rim boards. After I was reviewing the build list with Carter Lumber, I got to thinking, why am I using just 3/4" T&G OSB flooring? I have done some looking and now I am leaning towards 1" or more T&G plywood (plytanium) or 1 1/8" OSB. I have even considered the advantech flooring. My question is this, I already have a 20" planer, a 10" cabinet saw, and other smaller cast iron. I hope to eventually obtain a nice size jointer and a shaper or two. My question is this, is the 1" over kill or do I need to go to 1 1/8" flooring here?
PS I am going with a crawl because it will only be about 6-10 feet from the house and its on a crawl as well......Don't really like concrete because it just doesn't last and the clay here in Ohio heaves a lot!!!!
Mike Sorge - Advantech Flooring 1 1/8"
Bryan, your timing may be excellent as I have 28 sheets (4'x8') of 1 1/8" Advantech tongue and groove flooring; it's the best flooring for any purpose especially for wood shops with heavy equipment. I was fortunate to find it on sale at $15 p/sheet (1/2 off list price). My wife and I have property out in the country, was going to use the Advantech on the new build once we sold our Westerville (OH) home, but the housing market took a dive and we've changed our plans. If you haven't purchased flooring for your shop yet, you're welcome to it. Also, you can check out my woodturning web site at www.mikesorge.com. Best, mike
Quote:
Originally Posted by
Bryan Rocker
Thanks for your input, my crawlspace will be 40" deep and I will definitely be laying plastic down followed by pee gravel to keep it in place and to control moisture and radon. I priced 1" 1/8 T&G OSB @ Menard's for almost $48 a sheet. Carters, whom I will probably be buying the kit through has 3/4" T&G OSB for $15 each. I can run 2 layers for 3/4 for way less than the thinner stuff. I had planned on doing 16" on center since the span for 2x12's will be less than 8'. I have also considered shrinking them down to 12" OC to ensure I can move my 700lb planer any where I want it. or my 500lb rolling tool box, not to mention any other cast iron I may add to my collection in the future.
Todd, if you do some searching out there you will find some good tables that show you the loading needed for many residential things. I estimate that with 2x12's 16"OC, that the floor will be rated around 150 lbs/ft. which exceeds what is required for residential (40 lbs/ft)
I know so many folks say well just build it to code....my reply is that code is the minimum....if you were in school it would be a "C"....I don't want to get it built and go I wish I would have added X.......my other constraint is height....I have to have it no taller than 16' to the peak from the ground. I am very close with the 12" joists which is why I didn't go with the open web trusses, they would have added another 1' to my height.......