So. . . after 34 years in the house I have to put the railing up for the soaking tub as we are about to sell it. From this pic:
you can see the two mounting 'cups' that need to be anchored down. I 'assumed', because the railing was in the original house drawings, that the wood under the tile would be 2" material. Sure enough I drilled the 1st hole (top one) and was in solid material. Put a 2" lag screw in and all good.
Not so much with the lower one. It must be 3/4" plywood
After much ruminating I thought no problem, I would run a long dill bit (24") down through that hole I made, pierce the subfloor of the tub room and from the basement be able to drill a 4" round hole directly below. Then I could put a 1/2 bolt through and nut it from below with a long extension.
Not so fast I hit something about 8" down. When I went into the basement and looked up I realized there is an I beam there.
So now I need an anchor, like a toggle bolt, to hold down that mount. Because of the leverage of the railing it needs to be able to take 100's of lbs of force. When looking online I see toggle bolts but the ratings are only about 75lbs. . .
What can I use?
you can see the two mounting 'cups' that need to be anchored down. I 'assumed', because the railing was in the original house drawings, that the wood under the tile would be 2" material. Sure enough I drilled the 1st hole (top one) and was in solid material. Put a 2" lag screw in and all good.
Not so much with the lower one. It must be 3/4" plywood
After much ruminating I thought no problem, I would run a long dill bit (24") down through that hole I made, pierce the subfloor of the tub room and from the basement be able to drill a 4" round hole directly below. Then I could put a 1/2 bolt through and nut it from below with a long extension.
Not so fast
I hit something about 8" down. When I went into the basement and looked up I realized there is an I beam there. So now I need an anchor, like a toggle bolt, to hold down that mount. Because of the leverage of the railing it needs to be able to take 100's of lbs of force. When looking online I see toggle bolts but the ratings are only about 75lbs. . .
What can I use?
