This is the 13110th most frequent Russian word.
мебельной
"Мебельной" refers to something related to furniture.
Here, 'мебельной' is an adjective modifying the noun 'студии' (studio), indicating that the studio deals with furniture.
Он работает в мебельной студии.
He works in a furniture studio.
In this sentence, 'мебельной' describes the noun 'фабрики' (factory), specifying that the factory is associated with furniture production.
Она выбрала отдел мебельной фабрики для экскурсии.
She chose the furniture factory department for the tour.
This example uses 'мебельной' as an adjective qualifying 'дизайн-шоу' (design show), denoting it is related to furniture design.