I’m going to build a minimized version of an inversion table.

It will be a board about 6′ long with a width somewhere between 12 to 24 inches. I’ll attach an eye bolt on one end and use a hoist to raise it up about 3′ so that it sits at about a 30 degree angle. Then I’ll have some boots with hooks to suspend myself on top of the board. It should be able to support about 250 lbs centrally placed since I may need to be able to sit up while it is raised. I’m not terribly concerned about a small amount of sag. I’m mostly concerned that it won’t break in half.

What I would like from you kind folks is suggestions on what to use for the board. I have a lot of construction knowledge generally, but I don’t have any wood working knowledge per se. I stumbled on the “Sagulator”, but I don’t know enough about different kinds of wood to know what to enter in. It doesn’t have just “Pine” or “Oak”. It’s possible that my best material may not be wood at all. I would love to hear all suggestions. Thanks.