Hardwood lumber comes in thicknesses measured in quarters of an inch.
													
																	5 4 lumber size. 
								
	
		
	
																	Premium kiln dried cedar lumber is the ideal wood choice for any creative outdoor living project. 
																	Additionally hardwood may be sold in quarters. 
																	Each quarter refers to 1 4 inch of thickness meaning that a 5 4 board is roughly 1 1 4 inches thick. 
																	Thick in the rough. 
															
													
								
	
		
	
																	4 4 5 4 6 4 8 4 10 4 12 4 in short these fractions are the names for the thickness of hardwood lumber. 
																	This wood also resists decay and insects so your investment is protected for years to come. 
																	Width 4 4 1 5 4 1 6 4 1 7 4 1 8 4 2 10 4 2 12 4 3 16 4 4 1 083 104 125 146 167 208 250 333. 
																	So as a rule of thumb 4 4 stock surfaces down to 3 4 in thick lumber and 5 4 to 1 in. 
															
													
								
	
		
	
																	Twice as durable as other softwoods cedar lumber features minimal warping shrinking or swelling. 
																	If you surface rough stock smooth you will usually lose about 1 4 in. 
																	Thick 12 4 would be three inches thick. 
																	What do these lumber fractions mean. 
															
													
								
	
		
	
																	One board foot is equal to 144 cubic inches of wood. 
																	The all natural easily maintained 5 4 in. 
																	For instance hardwood trim that ends up being just over 1 thick surfaced on 2 sides is called a five quarter 5 4 board. 
																	2 lumber is called 8 4 eight quarters. 
															
													
								
	
		
	
																	In north america hardwood lumber is usually specified using the quarter system where a board is identified by its thickness in quarters of an inch. 
																	1 lumber is called 4 4 four quarters. 
																	Hardwood board widths vary. 
																	Here s how they compare. 
															
													
								
	
		
	
																	5 4 x 4 x 8 select pine board actual size 1 5 32 x 3 1 2 x 8 model number. 
																	For example 4 4 read out loud as four quarters is 1 in.