Straw Cast Stone, also known as concrete fabricated using straw as an aggregate, is a versatile material and can be used in various applications, including floor coverings. However, there are a few factors to consider before using it:

1. Durability: Straw Cast Stone may not be as durable as traditional concrete, so it might not be suitable for high-traffic areas or heavy loads.

2. Moisture resistance: Proper sealing and finishing are needed to ensure that the flooring remains resistant to moisture penetration, as the presence of straw may make it more susceptible to water damage.

3. Aesthetic appeal: Straw Cast Stone can have a unique appearance due to the straw fibers, which may not be appealing to everyone. Some people find it rustic and charming, while others may consider it unattractive.

Before using Straw Cast Stone as a floor covering, it is recommended to consult with professionals, such as architects or contractors experienced in working with the material, to ensure it meets your specific needs and requirements.