Wooden Slab

The Wooden Half Block, is a to-be-implemented block programmed by Jeb, and announced through this tweet. Based purely on their name, it is to be believed that the Wooden Half Block is the wooden equivalent of the Stone Slab, and as a result are likely able to be climbed without jumping, and one can be placed on another to make a full block.

Crafting
Wooden Half Blocks will be crafted with three Wooden Planks in a horizontal line. This is still currently the recipe for Wooden Pressure Plates, however Jeb, through Twitter, has said that both Pressure Plate recipes shall only consist of two blocks per plate as of the implementation of the Wooden Half Block.