New resident in an 80s townhouse cooperative. Just removed a stair railing where 2 out of 3 plugs were loose in the wall.
The wall is single plasterboard and previously, the railing was attached with 3 Fischer SX10 plugs (universal type).
I had hoped that it would be enough to fill in the holes, drill, and plug with proper molly expanders.
My dad, who is more knowledgeable and experienced, advocates instead trying to reinforce the single plasterboard with wood/plywood on the inside and then skip plugs. This is simple in practice as there is a storage area behind the staircase wall where you can cut a hole to access the inside of the plasterboard.
Recently moved into a housing cooperative townhouse from the 80s.
Just removed a stair railing where 2 out of 3 plugs were loose in the wall.
The wall is single gypsum and previously the railing was attached with 3 Fischer SX10 plugs (universal type).
I had hoped that it would suffice to fill the holes, drill, and use a proper molly expander.
My dad, who is more informed and experienced, advocates for trying to reinforce the single gypsum with wood/plywood on the inside and then skipping the plug. It's simple in practice as there is a storage room behind the stair wall where you can cut a hole to access the inside of the gypsum wall.
What do other members say?
Thanks in advance
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Yes, it's better to cut a hole in the gypsum and then place a short beam behind for stair railings as they are subjected to a fair amount of force..
So your dad is wise😉
Handrails should ideally hold if you stumble and grab the rail to save yourself, and then not come loose from the wall. I wouldn't trust gypsum for that.
There is surely a framework in the wall with at least 45 X 95. If you are planning to wallpaper or repaint the wall, you can find the studs (maybe with your dad's help). Knock on the wall and push in an awl to find the center of a stud, they usually have 600 mm C/C, so just find the first one. They work well for the stair railing bolt you show, if you pre-drill into the stud.
We have OSB and plasterboard but it hasn't been enough to attach the railing and make it hold. One of "the younger ones" had hurt their foot and was trying to get down the stairs, hanging between the wall railing and the other side's railing, which is integrated into the staircase and is now loose... and we're not talking about a large person...
I also believe in finding existing studs or opening up and installing noggings - simply putting plywood or another board behind the plasterboard won't hold in the long term or under load.
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