Chewing Wood Furniture

I just adopted a four month old lab. I bought her several rubber Kongs and Nyla bones. She is crate trained. I noticed her trying to chew my wood coffee table and wood couch legs. I calmly tell her no when I catch her doing this and give her one of her toys to chew and then praise her profusely. Does anyone know of any type of protectors for coffee tables and other wood furniture items like couch legs? Or maybe a homemade solution? She is not allowed to freely roam the home unattended, but I’d still like to use something to protect my furniture as a precaution.