From the always active mind of Dan Newland …..
I was using this table when it occurred to me that perhaps you could also use these figures.
Attached are some real, measured weights I’ve kept for when I need to do calculations, (the exception are the foam cores that are calculated). Many came from laminate samples or real wood pieces that I have and commonly use around the shop. It occurred to me that maybe you could use this but if not, I will assume the delete button works well and it can go into the Ether. Anyway, I try and keep the samples and do honest weights when I can since I always am a bit suspicious of some assumed weights. So these are for the most part real world weights based on parts that I have weighed but of course the wood can go up or down. Still, it is valuable to have, sorry if it is hard to read.