Ripping a Board to Specific Widths

let's say we want to take a board and we want to go from five and a half or five of the court or whatever your two by sixes is it's gonna cut down to a four-inch four inches right here run your slot so you've got the slots right here you can see them right here right yeah put your pencil in your slot and then just run it down yeah just like that simple as that yep that's a four mark as straight as the board is yep right so that board has a banana in it you learn to be a banana if not lines gonna be a banana and that's on both sides of the speed square so if you flip it over you don't have to use just one side or the other side if we wanted a two-inch board we just find the two inch slot we've got it right here put our pencil in it and Mark it down and then we're gonna have our line and that's gonna be straight as it goes and they go in every quarter inch you know they don't go like you're 16 C or whatever but okay so but now we have more to this speed square than the ripping the the 45 and the 90 we also have these numbers which are hip and Valley if you see when you're setting your trusses and stuff like they are if you're making your dresses if anything your own and carve it and what we're gonna show these guys next is how to tell the pitch of the roof just by using a speed square okay all right so let's move over to we've got some decking over there we've got their deck railing no fell the picture that decorated okay so what