Elm wood is generally considered better than pear wood for furniture and woodworking projects. Elm is harder, more durable, and has a more consistent grain pattern, making it ideal for high-quality furniture and construction. Pear wood, while still valuable, is softer and more prone to warping, which limits its applications.

Elm wood is known for its exceptional strength and durability, which makes it a preferred choice for furniture construction. According to the American Hardwood Export Council, elm has a Janka hardness rating of 1,450 lbf (pounds-force), which is significantly higher than pear wood's rating of 870 lbf. This higher hardness means that elm is less likely to dent, scratch, or wear over time, making it a more suitable material for furniture that will be used frequently. Additionally, elm's consistent grain pattern allows for more intricate designs and finishes, enhancing the aesthetic appeal of furniture pieces.

Pear wood, on the other hand, is softer and more delicate, which can make it more susceptible to damage. Its grain pattern is also less consistent, which can lead to issues with finish adhesion and overall stability. While pear wood is still valued for its warm color and pleasant scent, it is not as suitable for heavy-duty applications or furniture that requires long-term durability.

In terms of sustainability, both elm and pear wood are considered renewable resources. However, elm trees are more abundant and can be harvested more frequently than pear trees, which are often considered a delicacy and may be harvested less frequently. This makes elm a more readily available and cost-effective option for woodworking projects.

In conclusion, elm wood is the superior choice for furniture and woodworking projects due to its higher hardness, durability, and consistent grain pattern. While pear wood has its own unique qualities, it is not as versatile or long-lasting as elm, making it a less ideal option for many applications.