Measure the width of the doorway.
													
																	Carpet tack strip installation doorway. 
									
	
		
	
																	Carpet installation repairs. 
																	Place the carpet tack strip under the carpet about 1 2 inch from the transition point. 
																	Position the strips with the tack points facing the wall. 
																	Pull the carpet over the top using a knee kicker. 
															
													
									
	
		
	
																	Part of the series. 
																	Flimsy wood tack strips yield easily to a sharp utility knife so you can replace pieces. 
																	Mark and cut a piece of carpet tack strip. 
																	Install the transition. 
															
													
									
	
		
	
																	Cut the edge of the carpet so that it reaches the edge of the tile perfectly. 
																	As a rule of thumb make sure to install the tack strip for the carpet about 1 4 to 3 8 inches from the edge of the tile. 
																	Press forward on the knee portion of the tool to stretch the carpet and use a putty knife to tuck the edge of the carpet into the tack strip down in the floor. 
																	Start with a clean area. 
															
													
									
	
		
	
																	Repeat the process along the entire doorway until no portion of the carpet edge remains visible. 
																	Keep a space equal to about two thirds the thickness of the carpet between the walls and the tack strips using a scrap piece of carpet as a guide.