I purchased this monkeypod piece a couple weeks ago. It is 7.5 ft x 2.5 ft x 2 inches thick. It is composed of two pieces glued together. My plan was to use it as a desktop but I’ve noticed since I purchased it, one end has warped slightly. This makes it very difficult to put legs on the way that I planned. Before I finish the tabletop or continue with putting legs on, is there any way to flatten this out? In the pictures below, the wood is sitting on my old ikea desk I am replacing.
It's hard for me to tell by the picture, but it looks to me like it's not so much warped wood as the splined joint between the component planks isn't true.
If that's the case, you might rip that joint out, ensure that the edges are square, and re-join the planks into a truly flat panel. I think I'd try that before planing the whole thing down thinner to make up for a botched panel joint.
Beautiful piece! It must have cost quite some money. Despite being dead, harvested, and turned into lumber, trees still retain the ability to take on and release water. Fighting its natural desire to do this is difficult and can put the wood under some stress which can exacerbate the problem or lead to damage like cracking.
Is it possible to flatten it? Yes. With a good sized router flattening jig and the right bit or a series of hand planes, some physical dexterity, and a lot of patience you could flatten it. But when the moisture in the room decreases or increases again, you’ll be in the same boat (maybe an actual boat due to the amount it might curve if you’re not careful).
With something like this, I’d recommend two or three bars of C channel on the bottom, routed into the piece. This article has some information on how to go about that.
A strip of C channel is just a bar of steel that’s a double angle bracket with holes down it. You route the depth of the C channel into the slab and then it gets bolted in. You’ll need a flat surface to do this though which means at least one side will need to get flattened first.
To be honest, and I hate to say it, you might consider ripping three even strips, flattening each individual strip, then edge join them back together, and then adding the C channel. Maybe some others have some answers for you though.