Ziqi wood is generally considered better than Elm wood due to its superior durability, aesthetic appeal, and workability. Ziqi wood, also known as Zelkova wood, is a dense and hard wood that is highly resistant to decay and insects. It has a straight grain and a fine texture, which makes it ideal for furniture, flooring, and other high-quality woodworking projects. Elm wood, on the other hand, is softer and more susceptible to wear and tear, making it less suitable for long-lasting applications.

Ziqi wood is also prized for its rich brown color and straight grain, which adds a luxurious and timeless look to any piece. It is often used in high-end furniture and cabinetry, where its durability and beauty are highly valued. Elm wood, while still visually appealing, does not match the longevity and resistance to environmental factors that Ziqi wood offers.

According to the American Hardwood Export Council, Ziqi wood has a Janka hardness rating of 2,300, which is significantly higher than the Janka rating of Elm wood, which is around 1,450. This indicates that Ziqi wood is much harder and more resistant to dents and scratches. Additionally, Ziqi wood has a higher bending strength and modulus of elasticity, making it more suitable for structural applications.

Furthermore, Ziqi wood is known for its excellent stability, which means it does not warp or split easily when exposed to moisture or temperature changes. This stability is crucial for maintaining the integrity and appearance of furniture over time. Elm wood, while stable to some extent, is not as reliable in this regard and may require more maintenance to prevent warping or cracking.

In conclusion, Ziqi wood is superior to Elm wood in terms of durability, aesthetic appeal, and workability. Its higher hardness, stability, and resistance to decay make it a more suitable choice for long-lasting and high-quality woodworking projects.