The other main consideration is where the tiles will be set on the floor or on the walls and ceilings.
													
																	Notched trowel for wall tile. 
									
	
		
	
																	V notch trowels have a continuous zig zag or sawtooth pattern with points. 
																	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. 
																	Tile trowels come in many shapes and sizes generally starting out from a 3 16 v notch up to the 1 2 square notch. 
																	U notched trowels normally only have one number. 
															
													
									
	
		
	
																	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. 
																	As 1 2 trowel means that both measurements are the same. 
																	A tile trowel with only one measurement i e. 
																	Tile trowels come in many shapes and sizes generally starting out from a 3 16 v notch up to the 1 2 square notch. 
															
													
									
	
		
	
																	It just creates a better bond to the tile. 
																	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. 
																	Twelve inch square tiles for instance are best applied using a trowel with 1 2 inch by 1 2 inch notches. 
																	They are typically used for small tiles such as mosaics or any tiles under 2 inches square. 
															
													
									
	
		
	
																	The larger the tile the larger the trowel. 
																	V notch tile trowels.