Hi All ,
We went to the local home show last weekend and this one guy was selling home kits from the factory that were rigid foam for insulation with OSB or wafer board on each side and no studs in the field only at the intersection of where the prefab panels came together and around each window and door opening .
As a cabinet maker I asked the guy how would one install cabinets or anything else of any weight for that matter to these walls . The guy very confidently told me you just screw them through the drywall and into the OSB . I was shocked that no provisions were made for the cabinets .
I leaned on him a bit more and found out he actually has never installed cabinets like this but he said it would be no problem . I wasn’t buying his story . As I asked more difficult questions and he began to squirm more he said you could order the walls with studs in the correct place in to coincide with the cabinet layout for an extra price .
I think a tremendous liability exists for the person who hangs anything in a structure like this .
What do you folks say is the 5/8″ OSB just fine or can this be a problem waiting to happen ?
thanks dusty
Replies
I don't see a problem myself.
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Piffin ,
I know the screws are rated plenty good in sheer strength but 5/8" of purchase into a porous material goes against what is acceptable like studs or some real meat to screw into .
I was taught the screw should bite into a deeper amount than what it is coming through , maybe physics have changed .
thanks for your time to reply
dusty
True, but it is possible and easy to use more screws in SIPS and know that you are actually hitting the material. The shear is fine for the down load. It is only pullout that might be a concern, so I would double the number of fasteners in the upper rail is all.
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These are called SIPS, structual insulated panels and they have been around for a long time.
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A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.
this be a very good question for JLC
Hi brownbagg ,
Don't know who JLC is but my concern would be liability and my insurance company if a box or run of boxes comes crashing down and either causes injury or property damage. I build in long runs when smart , sometimes 8 - 10 feet and longer , and when full of dishes and such you easily may have way in excess of 500 lbs or more .
dusty
screw you a 2x with a 1000 screws and then attach the box to it.
A technique that seems to work well with SIPs is to fasten 1/2" plywood to the OSB skins with adhesive and screws in the field where the cabinets will hang. Then you butt your drywall to the plywood. The increased surface area of the plywood makes for a very strong bond. Plus you can then place your screws for the cabs based on aesthetics rather than stud placement.
jolsenami , The plywood does sound resonable in theory , thanks .
dusty
just get you some gorilla glue , it hold anything.
bb, Don't know why I haven't done that before !