Patching my wall

I need to do something with the cracks in this wall



I've just pulled out some lumps of loose plaster to see what was behind. Basically the right hand side is a solid concrete block wall, plastered. The left side is around a doorframe, it is a wooden stud structure and plasterboarded. Looks like they just plastered over the large gap with no mesh or anything tying them together. Every time the door closes the frame side vibrates a bit and cracks the plaster join. I'm not sure if the gap is as wide all the way up, or if I've just poked out the widest bit.

Any idea of the best course of action for me? (I don't really want to reconstruct the stud section)
I can do a bit of plastering, but don't want to have to do it every 6 months as it inevitably cracks. Is there anything that can effectively join these two sections together?

 

Can you show us a further away shot?

I can't believe a door being closed causes that amount of damage , it's either being slammed or the frame is simply not secure enough and requires better fixing

There's not point patching the hole without sorting the cause first

 

Here is a larger shot



The door leads into a garage, bricks on the garage side that the door frame is fixed to. The door frame itself feels solid enough, its the hollow plasterboard bit that moves/vibrates. This door does get a bit of abuse, not slammed hard but often pulled and let go to close as we walk away - probably a very bad habit! Maybe a soft door closer is a better solution to take the stress out of the situation

 

So it has a self closer on it?

I would remove that for starters then patch the hole!

 

ha, no it has no closer on it at the moment hence why it probably gets shut a bit harder that it should do sometimes! It also gets left open at times which winds me up I was thinking a door closer that has soft close would solve both issues - are you suggesting they can be bad?

 

Some yes as they have to "slam" at the end to ensure the catch is engaged and invariably they are adjusted so they slam too hard

However if a soft close closer would stop your family slamming the door then that can only be a good thing and give you peace of mind!

 

the closer should be adjustable.
and the door maybe a heavy fire door

 

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