The ornamental design for a tiltablelockableelevatingpedestaljoist support, as shown and described.
FIG. 1 is a perspective top view of a tiltable lockable elevating pedestal joist support showing our new design;
FIG. 2 is a perspective bottom end view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is an elevation view of one side thereof, the other side being a mirror image;
FIG. 6 is a front elevational view thereof, the rear being a mirror image;
FIG. 7 is a perspective view of an alternate embodiment showing a shorter center, the other areas of the pedestal being as shown in the embodiment of FIG. 1;
FIG. 8 is a perspective bottom view thereof, the other areas of the pedestal being as shown in FIG. 1; and,
FIG. 9 is an elevation side view of the embodiment of FIG. 1, in use.