The part number SPCSW typically refers to RTC Products Smart Wedge Tile Spacers / Leveling Wedges.
Rather than setting a fixed millimeter grout line width like standard cross or T-spacers, these are sloped wedge shims. They are primarily engineered to let you manually adjust, level, and shim uneven tile lines, stone panels, or counter backsplashes during vertical or horizontal installations.
Technical Specifications
Spacer Shape: Tapered Wedge ("Smart Wedge")
Sizing Range: Varied / Adjustable thickness (slopes gently from a fine tip up to a thicker base, typically spanning 1/32" up to 1/4" or more depending on how far you press the wedge into the joint).
Style: Reusable / Removable (Made from dense, non-porous hard plastic, you slide them in to lock the tile position while the thinset cures, then pull them out before grouting).
Key Features
Granular Micro-Adjustments: Ideal for correcting minor variances or dealing with irregular handmade tile, rustic stone, or uneven walls where a uniform cross spacer would force the lines crooked.
Non-Slip Ridge Grip: Often molded with tiny interlocking surface ridges or a textured face to prevent the wedge from slipping out under the active downward pressure of heavy vertical tiles.
Jobsite Multitasking: Excellent for leveling the foundational bottom row of wall tiles off a sloped subfloor or packing tight corners where standard horseshoe shims won't fit.