At what age does frame typically stop developing? Is HGH for frame gains worth it at 17?

[IHATEINDIANS]

I'm fine with my frame, above avg for my height but I want to be a frame mogger. Can I still grow a bit frame-wise?

 

[Australian]

Can I still grow a bit frame-wise?

Yes it's possible as the skeletal frame tends to fully mature around 18–21.

 

[NoaA99]

At 17 your frame growth is usually finished or almost finished.
Marginal improvements maybe but if your frame is narrow, it will likely stay narrow, regardless of hgh.