Abstract: A spacer for use in maintaining a uniform joint area during installation of wall tiles and the like is constructed from a general U-shaped figure having an intermediate cross web member to provide additional strength. The web member also protects the installed wall tiles during removal when using an extraction tool which engages the web member to provide leverage. The depending legs of the U-shaped figure have uniform thickness. A wedged-shaped extension is arranged extending from the figure and terminates in a tab of uniform thickness. The spacers may be stacked back to back to accommodate different joint area thicknesses and the wedge-shaped extension may be utilized in leveling irregular tiles where non-uniform joint areas are required.