No Trim, this unit sits on the current wall. Below is 1 Kitset that we offer for this model. Fredrick Wall Niche W Shelves (WN130) Includes: 1x Wall Niche, 1x Base Shelf, 2x Shelves, painting/fitting not included. Image is for design reference only, shelves can added or removed per order.
Fredrick Wall Niche (Facemount)