A post support sleeve is shown and described. The post support sleeve includes a housing having a base and at least one sidewall. The housing has an interior volume and an open top end. The open top end is proportioned to fit various sized posts therein. The at least one sidewall has at least one aperture located therethrough. The at least one aperture is positioned to have a fastener placed therein. The base further has a plurality of drain apertures therethrough.