Moderators: Aaronw, John Sayers
As to your suggestion about protecting the new work, that would help for SOME forms of "oopsies" - personally, since I own a full-size industrial backhoe, I tend to assume that ANYTHING can be destroyed if we TRY hard enough 
hence my advice to do ALL demo before putting things up we want to SAVE 
SteveMan, and I thought I was skinny! I'm 6'3" and about 150 lbs.len-morgan wrote:
I'm 6' tall but only weigh 118 lbs so the first (and only) time I rented a jack hammer to break up an old concrete patio in the back yard, I had trouble holding it and it really looked more like I was riding a pogo stick! Fun was had by all...
len
OK then. Settled. 8" spacing on screws into OSB, with glue along the edges for added protection.knightfly wrote:Using a thin bead of glue around the inserts' perimeters AND screws into the OSB will work fine.
I'm figuring on using a Liquid Nails product that seems appropriate for use on drywall. Please let me know right away if there is a specific product recommendation or, especially, if this is not a good idea.Yes, 2" spacing layer-to-layer will be good.You can't put screws much closer together though, you want to keep at least a couple inches between screw holes in the OSB for strength - with 4 layers, offsetting screws by 2" each layer you'd be limited to 4 layers. So each layer's schedule should not be closer than 8". The final layer being screwed to cleats should work fine, just be sure this doesn't cause any air gap between the last two layers.
Cool.. . . your level of "overkill" should negate 99% of any ill effects [of the 16" stud spacing].
I didn't want to risk making such a material change to the plans.
This is the assurance I love to read!!!As it is now, I doubt you could get yourself in trouble with neighbors even after breaking a dozen pairs of sticks and splitting a couple of heads...
Len, you'll be pleased to know that my father-in-law told me the same thing this morning (before I had a chance to read your idea). Although Steve makes some great points about the advantages of doing demolition work first, my father-in-law was concerned about such things as tripping over J-bolts in the new slab. I didn't take that warning too seriously, but he "stuck to his guns" so to speak. And since he may be assisting me with the concrete demolition and he's blind (really -- and he doesn't let that get in his way of doing some pretty amazing thingslen-morgan wrote:you get the cheapest plywood or even 3/8" drywall and lay it up against the new walls (long edge down) to make kind of a super baseboard that would absorb the damage and then be tossed?
), I think I'll take Len's advice and use some of my yet-unused OSB for that purpose. 
No wonder they call you Stick! 
- not a lotta fun... Steve Let the beef begin!! 
I'll probably need to buy more later, but at that price, I'd rather not stock up on that stuff. Thanks for the encouragement! Truthfully, it's just mind-numbing, tedius, and achy work. I say "achy" because, quite frankly, I'm really out of shape, so all the stooping and standing and stooping and standing for two days in a row is quite a workout! This was to be expected though. I surely need the exercise!
If not, then I'll poke at it during the week while I await arrival of the Green Glue. Slow going, but moving along. I had to drive all over town today to replenish my screw and nail supply... Local Home Depot totally out of stock of 1" drywall screws, so I had to go to the Home Depot that's 12 miles away... And they didn't have the 1 1/2" drywall screws, so I had to travel another 10-15 miles to the nearest Lowe's for those.