Inflatable floor (5), in particular for inflatable boats, constituted by at least one closed airtight compartment of a generally very flat shape and inflatable to a relatively high pressure, said chamber comprising two main walls (6) opposite each other formed by at least two respective sheets (7) of at least one relatively flexible and airtight material connected together by a multiplicity of flexible links (8) of approximately equal length, characterised in that one of said main walls (6s) or upper wall has an external face (9) which is constituted so as to be anti-slip (11) at least over most of its surface.