Modular ceiling accessible one by one, hidden grid, resting on all four sides, allowing for reduced thickness and larger formats

A registrable ceiling module installable from below comprising:

• a face having a substantially rectangular shape with a first set of four vertices each comprising a right angle, a back disposed opposite the face and comprising a second set of four vertices each comprising an obtuse angle, and four module edges, wherein each of the module edges comprises:
• a front flange extending from, and in a same plane as, the face and having a first thickness;
• an installation recess disposed between the face and the back and having a second thickness and a first depth with respect to the first set of four vertices;
• a fixing recess disposed between the back and the installation recess and having a third thickness and a second depth with respect to the first set of four vertices;
• and
• a support flange extending from, and in a same plane as, the back and having a fourth thickness, a third depth at a first portion extending along each of the module edges from each of the first set of four vertices to a second portion of each of the module edges, and a fourth depth at the second portion that is less than the third depth, wherein the third and fourth depths are with respect to the first set of four vertices.