There is no definitive answer to this question as it depends on a number of factors, including the type of wood, the grain, and the moisture content. However, some woods are generally more difficult to split than others. Hardwoods like oak and maple are notoriously tough to split, while softer woods like cedar and pine tend to be easier.
One of the main reasons why hardwoods are so difficult to split is because they have a very tight grain. This means that the fibers in the wood are tightly packed together, making it harder for your axe or wedge to penetrate. In addition, hardwoods tend to be much denser than softwoods, meaning that they're heavier and more resistant to being forced apart.
Another factor that can make splitting wood more difficult is moisture content. If the wood is too wet or too dry, it can be harder to split. Wet wood tends to swell up as you try to split it, making it even tougher for your tools to penetrate; dry wood can be equally unyielding. The ideal moisture content for splitting wood is somewhere around 20-30%.
So what's the hardestwoodto splits? It really depends on a number of different factors. But in general terms, hardwoods like oak and maple tend