Did this job a while ago, a pair of built ins straddling a fireplace. The alcove on the left was a decent depth but the one on the right is barely six inches deep, so that side was made for dvd storage with adjustable shelves – the base on the r/h unit protrudes past the chimney breast, with the top part nearly flush to the wall.
The doors are hung on blum type full inset hinges except the middle doors hanging on half overlay hinges.
Matt Polyurethane finish applied by brush and given a light rub with p600 paper.
-- Doing the best I can with what I've got