A false ceiling comprising a bearing structure comprising at least two coplanar and mutually parallel opposite profile members fixed to a ceiling, the profile members between them defining an access opening providing access to the ceiling, each profile member comprising a shoulder defining a horizontal bearing surface facing towards the ceiling, at least one panel positioned between the profile members, the panel being dimensioned to rest on the bearing surface of the profile members, the false ceiling further comprising removable and attached wedging means for transversely wedging the panel between two opposite profile members, the wedging means being arranged on either side of the panel.