How To Custom Build Door Jamb Trim, DIY Craftsman Style Door Casing

a quick question for you what's the hardest thing to do when you're putting together the final touches of a door jamb stay tuned let's find out hello this is Rick Patterson thanks for coming to my video today today we're going to answer that big question is what's the one of the toughest things about putting up a door jamb trim let's talk about that now well here's the project for today I have a client who once wants me to customize her two doors on one here and one on the other side to make it look like the rest of her door jams and entry ways throughout her house and so I have to build a custom trim around the door jamb so we're going to talk about that now so if the door already has trim up what you want to do is take a straight edge or a box cutter and cut along the wall and I've already done that here just cut along the wall and trim to loosen up the caulking that's attached to the wall you have to be very thorough make sure that you go all the way in and get it you know behind get the blade behind the trim if you don't and if you miss it and you start peeling off pulling away the trim you're most likely going to pull away some of the paint off the wall and then you've got another project so what you want to do is take the blade a box cutter and make your cut all the way around both on the outside of the trim and on the door facing around the jamb itself then you just simply take a hammer and some sort of proud are mini a mini primer or if you will so real thin blade to it and I'll show you one in just a second did you take that just tap it in there and start pulling it away now once you have full what you want to do just take a flat edge of some sort like a chisel a wood chisel and just take it along the wall and just go straight up the soffit just like this and along the door jamb also and what you're going to do is help remove some of the caulking that's still there because you want a flat surface when you're when you're working and putting on the new trim so go with this go with a wide chisel it's really easy make sure it's a sharpened edge to get the most effectiveness at work do this all the way around of the door now the next thing you want to do is if you find a nail if you encounter a nail just in simply take your nail puller and take it like so and just gently pull it out and of course you want to take your nails and hold on to them and put them in a safe place okay so the next step we're going to take here is actually cut the baseboard now the baseboard is pretty tall so I'm going to have to cut out at least three and a half inches from this point here at the door down to this point here so I've made my measurements where I want everything to go and now I have to cut this and how you get this measurement is I divide this right down the middle the trim right here and then I get myself three and a half inches and I make my mark and then I take my quick square lay up here and to just make my tick marks there draw my straight line and now I've got that three and a half inch space that I need to cut so what we're going to do now is take my dremel multi-max saw and we're going to go ahead and cut this straight line and let me show you up close how that's done so what I do here just take the blade put it at an angle and I've got variable speeds here I'll tend is what I like to use a max and then when you turn it on it will make it's noise but then you just go along like so and at the angle that you want and then when you get to the floor you can take it flip it over and just barely go into this side without nicking the floor at all so let's go ahead and do that Oh you Oh okay so now what I do is I just take my pry bar behind here and just pull it away really slow you don't want to have to pull away all of the baseboard you just want to pull away what's there and oftentimes it's nailed like this one and it's nailed pretty good with extremely long nail so you just go in through there do what cuts you need the damage on and then go ahead and pull out this particular nail and with a your nail pliers okay now we're ready to move to the next step which is go ahead and measure and then cut the the trim itself so what I do is to take my speedo what we call a torpedo it's a leveler and I make sure that my boat is it between the black lines and so that gives me a reference point then I'm going to just take a pen or a pencil either one you've got and then make your mark there and then do this on the exact same side all the way across the door next thing I do is just take my tape measure go all the way to the floor and measure where this line is and I've got 80 and a quarter-inch there on the side and then I do the other side and what I'm gonna do sit this is areas going to be covered up I'm just going to go ahead and mark eighty and a quarter to remind me what how to cut this side and then measure the other side as well now just a little bit of advice when you're cutting trim on both sides sometimes the door jamb itself is not straight it's not level and so a good measure of thumb is to go ahead and make both sides the exact same height and everything and then what you can do is compensate at the bottom of the trim at the floor level because it's not as visible so you can compensate it a little bit there now what I do is just take my tape measure and we set as 80 and a quarter and a mark at 88 80 and a quarter and a market on usually I'm working on both sides of the tape just to where I can have a two points of reference to make my straight line and then we're going to cut so ruin a measure all the all the boards of the side panels a side trim and then we're going to make her cut now once I've got my two points of reference what I'm going to do is take a quick square just to make sure that I'm doing this correctly and it's marked correctly I want to make sure that there's both same there and I make my line now just to remind me which side to cut on I always make a little mark like a v-shape mark here and what that does means I'm going to cut on this side this side make an X there cut on this side up to this line right here okay so what I've done is placed the trim up on a miter saw remember I want the blade on the left side of the line so when I cut down what will be left is the right side and the line so one word of caution when you're cutting any with any Saul's or any machinery always know where your hands are and keep your hands out of the way and keep them where you can see your hands don't lose sight of your hands because you don't want to lose your fingers all right so here we go okay so what I'm going to do here now is take the back door and take it up to my line which is right here then I go up everything straight and I'm going to nail this into the board like so and just do this all the way down now we're ready to measure the cross member on the trim and so what we do here let's go from one side to the next and I'm looking at all six times that happens good I'm looking at that 90 at 39 and a P so from edge to edge it's going to be thirty nine and a half inches now the rule in carpentry you always measure twice cut once so I'm going to do it one more time just to make sure and here I'm looking again at 39 inches so now I'm ready to make my cut okay so remember again any time that we're doing our measurements we want to measure twice and cut once okay so you just take your measurement drop here at 39 make your tick mark there go back at the top on the other side make your tick mark there your quick square was is going to verify that you're straight when the lines match up and what I do here smack my line score my mark make sure it goes on both connections built in both tick marks and I'm let's go again to verify that I'm cutting on which side I will make a V line this little V to make sure that I leave this side and cut on this side and again you always want to make sure where your fingers are and they're out of the way you always have to see your fingers okay see your hands know where your hands are and here what I'm going to do is scoot the board as close to the line as I can get remember the blade of the cut will go on the left-hand side of the line okay so here we go now that we've got this up now we're ready to nail it go ahead and start here work it all the way across okay now that this is nailed up we're finished thanks for coming to my video today I'll see you next time this is Rick Patterson with the handyman toolbox by the way before you go want to encourage you to check out my other videos and you'll see a link below click on it the 1000th person that subscribes to the handyman to lots calm gets a free tool go ahead and register now see you there

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