Welfare generosity is a multidimensional concept that refers to both the access to benefits and the levels of benefits (in terms of the amounts paid to recipients). However, in analyses of public support for welfare, this distinction has been largely disregarded. To gain a fuller picture of attitudes towards welfare redistribution, the current study explicitly compares the two elements and examines which distributive justice principles—that is, equality, equity, and need—are preferred to govern, on the one hand, the access to benefits and, on the other hand, their levels. The article evaluates this distinction in two different distributive contexts (pensions and unemployment benefits) and contrasts social-structural as well as ideological dividing lines. For this purpose, data from the Belgian National Elections Study 2019 are analysed. The results indicate that the access to and levels of benefits are clearly distinct dimensions in public opinion, as different justice principles are preferred for the two policy dimensions. In addition, structural equation models illustrate that the access dimension is more ideologically structured, whereas preferences regarding the levels of benefits are more strongly stratified along social-structural lines. Overall, the results imply that social justice preferences are clearly different when considering the access to benefits or their level. This distinction should be taken into account in welfare attitude research.