On 24/05/2020 16:51, George Miles wrote:
I'm removing rotten wood, pine, plaster, foam, car body filler etc from an old bay window.

I'm thinking to replace just the rotten bits, not the whole thing,
copying the shape of the old bits.

I have some old oak beams which could be 100 or 200 or 300 years old,
how hard would this be to cut?

Maybe a new Freud blade for my table saw?

Or buy new oak which would be softer,
but how much would it warp as it drys out?

advice please

Photo and video on my facebook at:
https://www.facebook.com/dicegeorge/...58317257739882

George

Try what's in the shed, it should be OK with sharp tools but, if it's
too cracked, wormed, nailed or hard work then buy some more.
I've recently replaced some oak window sills and needed to buy a final
1.8m length of 80x80 sawn oak to machine down to the right profile.
Quotes from two saw mills were in the region of £54 and £44 for
kiln-dried, but eventually I found a local guy and paid £15 for some
well-seasoned air-dried ... so ask around.