A tool for supporting tiles on a wall being applied to the wall while drying between two countertops. The tile support device includes an elongated body and two longer side pieces that can balance on each countertop. The tile support device includes a ledge or ridge that couples to an angled surface or sloped surface. The tile support device can be positioned beneath a last level or row of drying tiles without having to fasten the tool to a wall surface or other surface therefore preventing damage to the wall surface or other surface from fasteners. The tile support device can be easily positioned and removed from beneath the last level or row of drying tiles that are drying on the wall.