How to Install Wood Crown Molding | Ask This Old House

[Music] everybody has a problem with crown molding but this is a nice simple detail quarter round detail I like this detail with this trim that you have around your doors it's nice and simple i' be more than happy to help you with this but to get started I want to run a straight line around the room to set our crown molding tube I'm going to Mark Each corner using a scrap piece of crown molding holding it at the right orientation I then connect the lines together using a white chalk line because the white chalk will remove easy right there okay here it goes we're going to start installing the crown molding on the front wall now it's going to require two pieces of crown moldy so what I want to do is I actually want to put a scarf joint or a miter joint in the middle so I'm going to take my first piece and I'm going to put it in the corner just holding it tight I've marked a position where our stud is in the wall and I'm just going to put a mark about where my center of my stud is I'm going to miter this first piece okay this is the saw that I'm going to use to make all of the cuts in the room now the first thing I want to show you is the orientation that the molding will sit in the room it's like this this being the wall this being the ceiling but I don't want to cut it holding it in this orientation what I want to do do is I want to flip it over like this put it on the saw now when I hold it against the saw this is the ceiling and this is the wall now why do you do it this way well because now I have more points of contact and I can actually hold it better so it's safer so now when I turn my saw or tilt it to 45° I can make my cut [Applause] all right now we're ready to put our first piece up and I'm actually going to nail it to the wall but the first thing I want to do is find the stud right there so I'm going to take the molding put it tight into the corner now I want to take the bottom of the molding and put it on our white line like that so I'll na my first stud right there now I'm going to nail into the ceiling also now when I nail into the ceiling I don't have to worry about finding a stud or any structure because there's actually blocking between the joist and also one parallel with the wall so now what I want to do is I want to take this end of it and I want to slide it up so the bottom of the crown W and hits the white line right there and that will make the bottom of the crown wolding straight around the Rope we're use an 18 gauge finish nailer with a 2in nail okay now I got to push this Ming up to the line right there now I'm going to nail it okay now I want to get a length for this piece right here so we'll just hold that up in the corner I'll push it to you and I'm going to get a length right there okay now my SAR is still set on 45° when I cut the first piece of molding that we put up I cut it from this side of the saw now I have to cut this molding on this side of the saw so my two cuts will be parallel to each other [Applause] just dry fit it okay that looks that looks good now what I want to do first is I want to glue the joint push it right up okay push it to me a little bit oh not too much okay nailing it and that's how you make a scarf joint and now we'll just nail the rest of the molding off all right now let me show you how I'm going to deal with the corner now some people will each piece like this it's a 45° angle here and a 45° angle here making a 90° corner you don't have a 90° angle the piece won't fit tight together I would have to BCT this angle so whatever that degree is I would have to cut equal degrees on each piece now the other thing you got to worry about is when the wood dries out as it dries out it shrinks and the joint can open up to lessen that problem what I like to do is do a butt cut in the corner as we did and a miter on the next piece now if you see when I put it up it won't fit tight so what I have to do is remove all of this material in the back down to the painted Edge now to remove the wood in the back I'm going to use this saw right here it's a coping saw blade it's a small blade making a curv cut just going to follow the Leading Edge on the paint let's see how it fits try it right up there like that I just hold that on up there Patrick don't push it up tight just let me position it all right I put it right into the corner like that now that fits pretty good okay so now before I F passing it into place I'm going to put some cocking in behind here what's the for well it's going to fill any imperfections in that cut so we'll have a nice tight corner now I'm going to tack it in place now we'll just keep working our way around the room [Music] now take a look at your miter first make sure it's tight once it's tight inhale it perfect you're good already see that [Music] good all right now I need to cut an outside corner for for the piece that's going to go over the brick to do that I'm going to set my saw on a 45° angle I'm going to here's my length right there all right now that's the piece that's going to go in front of the fireplace that's one okay now I'm going to turn my saw the other direction at 45° cut the other piece of molding for the end of the fireplace [Music] [Applause] I'm going to pre-assemble the two pieces down here and then I'm going to install it as one I'm using construction adhesive along the bottom of the back of the crown molding to fasten it to the brick then I'll nail it to the ceiling all right guys your crown molding is all done now there's a couple of things I want you to do I want you to around the top of the crown molding where it meets the ceiling and also where it meets the wall to fill in those voids fill all the nail holes sand it lightly and paint it I think I can handle that okay [Music]

Channel: This Old House

Views: 1,148,503

Keywords: This Old House, Ask This Old House, DIY, Home Improvement, DIY Ideas, Renovation, Renovation Ideas, How To Fix, How To Install, How To Build, crown molding, molding, wood molding, pneumatic nailer, nail gun, construction, woodworking, home repair, diy, do it yourself, tom silva, norm abram, richard trethewey, roger cook, kevin o'connor, tom silva this old house, tom silva house, tom silva construction, tom silva tools, tommy silva

Id: DeLqfGVM-DQ

Length: 8min 59sec (539 seconds)

Published: Tue May 24 2016