It will be much easier to bend the aluminum siding accurately if you first take the time to make a template out of cardboard.
													
																	Diy aluminum siding brake. 
									
	
		
	
																	I love working with metal but i ve always struggled to get perfect 90 bends. 
																	Simple sheet metal brake. 
																	A brake is an essential tool for working with sheet metal. 
																	Professional siding crews and heating ventilating air conditioning hvac technicians may work with metal brakes on a daily basis and can justify purchasing a metal brake as a legitimate cost of doing business. 
															
													
									
	
		
	
																	A siding brake bends aluminum or bendable vinyl siding to the angles you want using leverage from a hinged joint. 
																	Since it almost always bends crooked i end up rebending and generally just. 
																	A purpose made brake isn t necessary if you are going to be bending only a few pieces of coiled siding. 
																	This will also minimize the risk of making a mistake and wasting the expensive aluminum siding. 
															
													
									
	
		
	
																	After all this is exactly what you want. 
																	Step 2 making a template.