The details on this site are recommended for all i joists.
													
																	Timber floor joist detail. 
									
	
		
	
																	For 2 1 2 and 3 1 2 flange widths toe nails may be used. 
																	No more custom made floor trusses. 
																	Attach rim joist to floor joist with one nail at top and bottom. 
																	I joist construction details performance rated i joists in floor and roof framing. 
															
													
									
	
		
	
																	Here you can view and download individual floor and roof details for your use. 
																	Some newer homes have manufactured i beam shaped joists. 
																	Alternatively you can download a free viewer by visiting this link and downloading the dwg trueview application. 
																	Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. 
															
													
									
	
		
	
																	A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals. 
																	Nail must provide 1 inch minimum penetration into floor joist. 
																	If you don t have autocad you will need to sign up for a free account and use autodesk viewer a web based applications. 
																	Trimjoist is the marriage of an open web floor truss and a trimmable wooden i joist bringing the best features of each to the relationship. 
															
													
									
	
		
	
																	Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. 
																	The following table gives details of allowable spans and spacing between joists for the most common timber sizes used in floor construction.