Sturdy flooring material

The answer to the crossword question “Sturdy flooring material is OAK” is simply OAK. Oak is a widely used hardwood flooring material, known for its durability, strength, and natural beauty. It is highly resistant to moisture, wear, and can last for decades. OAK comes in a variety of colors and textures, and it can be stained or finished to match any interior style or decor. It is also easy to maintain and can be restored or refinished if needed. As such, it is a popular and reliable choice for those looking for a durable and long-lasting flooring material.