Straighten Oak plank

[VesaS]

I’m making mirror frame in oak. Long parts (stiles?) are 165 cm (5’4’), plank is bit bowed, say 3 mm (1/8 inch) in that length. There is not enough material to plane it straight.

Is there any chance to straighten that plank?
- maybe force it in other direction for few weeks and hope
- route a long recess and fill it with another part of that same plank (like inlay, but thick one)
- steam it and somehow put it straight
- ..

For me oak is a relatively costly option, hence the question.

Vesa

 

[bertv]

Do a Google search for 'relief cuts' and you will see what may help in this case. Also on YouTube 'hffcom' has a few video's where he shows this technique.

 

[flair woodworks]

You could try ripping it in half, flipping one piece around and gluing them together so the curves cancel each other out.

 

[VesaS]

Thanks,
I have been in flu for couple of weeks, so haven't done anything..

That Frankenstain method (relief cut) is not for me. Knowing that backside of mirror is ruined .. 

Maybe couple of new planks are not that expensive, compared  the extra work with sawing, glueing and planing and trying to get pieces straight.

Vesa