Joists on wall plate - Two different heights

[Gizzydash]

Hi,
Looking for some advice. I'm running some joists across a room to rest on an existing wall that has joists already in place.
When I level the new joists they're sitting 30mm higher than the existing joists. Can I run blocking inbetween the existing joists to give me a 30mm bump up or how can I approach it? Moving the other joists is probably out of the question as it's a seperate room and would mean a lot of disruption.
Any ideas would be appreciated.
Thanks

 

[catlad]

Notch the new joists.

 

[Gizzydash]

Sorry, should have been clearer there that I need the new joists to be sitting 30mm higher than the existing wall the other joists are resting on. So when I sit the joist on the wall as is it's 30mm too low.

 

[matlob]

Could you increase the new joist depth?

When you say blocking do you mean similar to a wall plate but just in sections between each existing joist?

 

[^woody^]

None of this makes any sense to me.

 

[Gizzydash]

Joist end on right is existing (ignore fact it looks like its floating!) Joist on left is new coming in from other direction but needs raised to the level shown by shims etc. I can't mess about with existing joist so can I for example run a wall plate between each existing joist gap to give me the rise I need? Understand wall plates should be continuous but can't see many options

 

[Gizzydash]

Sorry to reignite this but based on previous comment around notching wanted to run a solution passed people. So notch the existing joists, believe I can take 12.5% off the bearing end, this will enable me to get a wall plate in and then rest new joists on that with no notches as they need to sit higher.
Does that sound logical or am I crazy?

 

[Notch7]

Understand wall plates should be continuous but can't see many options

the term wall plate is the component that sits on the inner skin of the main perimeter walls of a house

if you are just wanting to raise up some joists on an internal wall then thats not a wall plate its just a packer -and yes you can do that in short pieces if you want, no probs


Its not clear what you are trying to achieve, I guess its a bedroom ceiling with loft space above, Im not sure why you need the new ceiling 30mm higher -its going to leave you with a gap to fill on the wall -unless you are going to fit coving?

 

[Gizzydash]

Thanks, yeah if I can use a packer inbetween each joist that will be easiest.
Opening out a kitchen and the existing wall the new larger joists will sit on is about 30mm too low, roof space above and yeah there will be a gap i'll have to conceal, will come up with something!
Just out of curiosity I assume using a long piece of timber in same vain as a wall plate would be ok as long as I notch the existing joists to accept it? I would say the existing joists are far from fully supported at the ends but then again haven't fallen down in 20 odd years so maybe save myself the hassle