Advice on walnut cull trees.

[brushwacker]

I am aiming on culling some smallish walnut trees. Is there a market for smallish trees like in the picture down to what diameter and length. Be a couple weeks and some i don't think will be better then firewood. Most probably will be next year if sap is an issue.

 

[Cat 525]

The market likes to stay at 12" diameter at eye level. A log 8ft by 12inch dia. is 32 board ft. I would cut the crooked ones first for sure.