Heavy limbs, What wood for riser?

[FoMoCo429]

Hello,
 A buddy of mine gave me a set of recurve td limbs that I need to make a riser for. The limbs are 64#@24 and are birdseye maple with walnut tapers. my draw is 31 1/2 so I will need a strong wood to hold up to the weight. what are the strongest woods that I should be looking at? Does anyone have a td of this weight?

[delongbows]

I built a TD longbow that was #87@30". I used diamondwood for the riser. I made sure I didn't go too narrow with the grip and I kept the shelf 1/8" shy of center.  I ended up reducing the weight on that one, but the riser was still ok after about 1000 or so shots at that weight.

[kennym]

Most risers seem to fail from the corner of shelf/site window down towards your thumb's place on riser.

Be sure to make a good radius at the corner, this seems to help.

Dymondwood would be good, or a bunch of different pcs lammed together by yourself. But a single pc of wood for riser would be scary for me.

[FoMoCo429]

thanks guys, Where can I get some Dymondwood? Also some pics to see what kind I would like to use.

[delongbows]

I got mine from Bingham projects.

[kennym]

Look up Rutland plywood products for pics but buy from somebody that you don't have to buy 4 big panels to get it.

Unless of course ya wanna build a LOT of bows!  :D

[JamesV]

Consider using an I beam in your riser if you need strength.