https://newtheologicalmovement.blogspot.com/2013/09/myth-ship-could-be-build-from-relics-of.html
"However, the total volume of the known relics of the True Cross is only about .141 cubic feet."
A cubic foot is twelve board feet. So 15% doesnt sound correct. One and a half board feet? Thats gotta be a typo. Id think 1.41 cubic feet is the correct volume for De Fleurys work. Thats about 16-17 board feet. By that figure, its nof enough for 1/3 of a full cross, but about enough for a full patibulum with some left over.
When I first encountered these data it was commented in one of my Shroud books which later I donated to my church library. A few years after that donations and use by many church members, some pious busybody member, a school teacher "Karen", decided they were worthless dreck and purged about $5000 worth of irreplaceable volumes (including some of the pastors own contributions, not to mention other church members) and had her husband haul them to the dump in his pickup truck. She thought they were just too "Catholic and smacked of "idol" and "relic" worship for a Protestant church library. This was all based on her ignorant opinion.
I found out two weeks later when the very angry pastor called me to tell me what this woman had proudly called to tell him of her having finished her volunteer ministry of clearing out the library of all those unnecessary and objectionable books. The pastor was livid. "Karen" had zero authority to do anything like that. Shed volunteered to organize them, not censor them.
Burn her at the stake, or drop her off in Tehran.