U notched trowels normally only have one number.
													
																	Notch trowel for wall tiles. 
									
	
		
	
																	This may also be a good trowel size for thicker 5 16 mosaics. 
																	Even some of the 4 12 bigger subway type tiles. 
																	1 4 x 3 8 square notch. 
																	They are typically used for small tiles such as mosaics or any tiles under 2 inches square. 
															
													
									
	
		
	
																	V notch trowels have a continuous zig zag or sawtooth pattern with points. 
																	Also use this trowel for installing ditra heat and prodeso heat membranes. 
																	As 1 2 trowel means that both measurements are the same. 
																	1 4 x 1 4 square notch. 
															
													
									
	
		
	
																	Twelve inch square tiles for instance are best applied using a trowel with 1 2 inch by 1 2 inch notches. 
																	Use this for 8 8 s and some of the 5 16 thick 12 12 builder grade tile. 
																	Because v notch trowels dispense less mortar than square notch they are also preferred for many wall or ceiling applications. 
																	Mosaic tiles and wall tiles up to about 4 by 4 inches call for a v notch trowel with 3 16 by 1 4 inch notches while larger tiles require a trowel with a square or u shaped notch to obtain proper adhesive coverage. 
															
													
									
	
		
	
																	When you use a 1 4 x 3 8 square notched trowel you will leave 1 4 wide by 3 8 high ridges of thinset on the substrate with spaces between each ridge. 
																	With your 12 24 tiles you should use a 1 2 notched trowel on the wall and back butter each tile but just with a skim coat. 
																	A great trowel for installing small ceramic tile such as 4 25 x 4 25 6 6 and 3 6 subway tile is this 1 4 inch square notch trowel. 
																	Tile trowels come in many shapes and sizes generally starting out from a 3 16 v notch up to the 1 2 square notch. 
															
													
									
	
		
	
																	A tile trowel with only one measurement i e.