Palm Wood

 covers the surface of the Sand Islands and is currently unobtainable unless accessed through glitches or exploits. Although some glitches are allowed, extreme methods are not recommended for user safety:

Using exploits (do not do) to obtain this wood puts you at direct'' risk of being banned! ''

Harvesting  is next to being impossible to do and can only be done with the use of bugs or exploiting the game. Neither of which is recommended nor endorsed. It would be the only way to get to the palm wood.

A practical way of getting to these islands is by dragging large Elm or Coniferous trees through the Ocean; most attempts were unsuccessful and returning with Palm Wood is nearly unheard of with this method. Putting large trees side-by-side from the shore to an island is, theoretically, possible in order to build a "bridge", though there are very few examples of this being attempted.

It is highly speculated that nautical travel is planned for a later update. This partly confirmed by in-game text from NPCs and locations to place boats in but no recent confirmation has been given. There is a glitch where a Vehicle could get stuck on your character and can jump high up in the water. This is used to get Palm Wood.

This wood type has the largest value per unit of plank than any other non-event specific tree, at $41 per unit.

The easiest way of obtaining Palm Wood is likely the infamous car glitch. Buy the Mundane Chair blueprint and a Utility Vehicle. Place the chair and fill it. Turn the car sideways and place it so the bottom of the spawn pad is flush with the back of the chair (and so the front of the car faces the chair). Sit in the chair and spawn the car. Jump when the car's wheels "spin". This may take a few tries but when executed correctly the car will be stuck to your arm. Start walking towards one of the Sand Islands; remember to start jumping when you are in the Ocean. Once there, chop down a tree. Make it a big one since you can only get one per trip. Grab the tree and walk into the ocean. Carry the tree until your health bar is in the orange, then start jumping to replenish your health. Repeat this process. Maneuver your way to the Sand Dock, the only slope in the game shallow enough for this purpose (the Tropics shore would work too but that would be extremely time-consuming). Make your way back to your base and put the wood in your sawmill. This process takes about 30 minutes and is not worth doing to sell at the Wood Dropoff. A better choice is to sell it to other players, since the labor required justifies raising the price. Many players will think it is Coniferous Wood or Birch Wood, so have a Coniferous/Birch plank for comparison just in case.