4 drain pipes should be about 1 4 inch per foot.
													
																	My garage floor slope is too much. 
									
		
	
	
		
	
	
		
	
	
		
	
																	The apron s length depends on the required slope more length is needed to reduce steep slopes. 
																	The apron extends the width of the garage floor. 
																	The garage is 28 ft deep so 1 8 to 1 4 inches per foot means the slab shoub be 3 5 to 7 inches higher at the end opposite the door. 
																	We have an attached two car garage with the size of about 21 x 21. 
															
													
									
		
	
	
		
	
	
		
	
	
		
	
																	So i did more measurement in the garage. 
																	It seems to be one side of garage floor is a little bit tilt towards the wall which means on one side the middle. 
																	A little more won t hurt but too much will. 
																	At a very rare occasion i measured the slope on both sides of the garage. 
															
													
									
		
	
	
		
	
	
		
	
	
		
	
																	The average person can sense if a floor slopes 1 inch in 10 feet and sloping floors or sagging floors are often one of the warning signs that structural engineers look for when analyzing a house. 
																	Stuff heavy stuff will tend to settle out and not move along as fast as it should jon. 
																	1 attach one end of the string level to the wall of the garage furthest from the main door. 
																	1 8 per foot is minimum you should use. 
															
													
									
		
	
	
		
	
	
		
	
	
		
	
																	Hello this is a very dump question. 
																	Getting ready to pour a garage floor slab. 
																	Although most floors slope it is important to know how much and why. 
																	7 inches sounds like too much both visually and from a walkability standpoint so the most i m going to consider is 3 5. 
															
													
									
		
	
	
		
	
	
		
	
	
		
	
																	One side is about 4 5 and the other side is around 5 4. 
																	If too little slope even if the water drains it won t be self cleaning i e.