Matting
/ˈmætɪŋ/
verb
To cover, protect or decorate with mats.
To form a thick, tangled mess; to interweave into, or like, a mat; to entangle.
noun
Mats, a collection of ground coverings.
Coarse fabric, of the kind used to make mats.
A dull surface, often used for surrounding pictures.
Synonyms: mat, matte, passe-partout