Home |
Search |
Today's Posts |
|
Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
A door I'm trying to put a casing around isn't square. How best to work
out and cut the mitre angles for my top and side pieces? A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? |
#2
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
A large
protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? I have a device, not sure what it is called, it has a wooden handle with a thin metal blade that folds out like a pocket knife that is handy for finding angles, it is a pretty common tool, not hard to find. You may encounter another problem, once you find the angles, the cuts may not have the same face length. Unless it is horribly out of square, it may be better to just cut the miters 45 and at least have part of it right. |
#3
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Eric in North TX wrote:
A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? I have a device, not sure what it is called, it has a wooden handle with a thin metal blade that folds out like a pocket knife that is handy for finding angles, it is a pretty common tool, not hard to find. Is that the one that has a slot down the middle of the blade? I bought one of those in a tool-buying frenzy about ten years ago, and didn't really know what it was for. You may encounter another problem, once you find the angles, the cuts may not have the same face length. Unless it is horribly out of square, it may be better to just cut the miters 45 and at least have part of it right. The trick there should be to take whatever the angle is and halve it, I think. For example, if the angle is 92 degrees, cut each piece with an outside angle of 46 degrees. Then the joined edges should match. |
#4
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Is that the one that has a slot down the middle of the blade? I bought
one of those in a tool-buying frenzy about ten years ago, and didn't really know what it was for. That's the one. |
#5
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
"Eric in North TX" wrote in message ups.com... A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? You can use the 345 rule to check square and then use those measurements to find the angle. The 345 rule is, pick a corner and measure 3 inches one way, and 4 inches the other way, and the ends of those two lines will be 5 inches IF that corner is square. Of course you use larger numbers for larger corners (ie multiply by 5 will mean 15, 20 and 25 inches if square). Now if you don't get 5 inches you need to figure out the angle using the Cosine Law. Much simpler just to use this online calculator. http://www.analyzemath.com/Geometry_...alculator.html |
#6
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
I've always called it a "bevel."
That's the one. |
#7
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
On 30 Dec 2006 10:28:59 -0800, "Eric in North TX"
wrote: Is that the one that has a slot down the middle of the blade? I bought one of those in a tool-buying frenzy about ten years ago, and didn't really know what it was for. That's the one. Bevel tool. -- Oren I have not failed. I've just found 10,000 ways that won't work. Thomas A. Edison |
#8
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Noozer wrote:
"Eric in North TX" wrote in message ups.com... A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? You can use the 345 rule to check square and then use those measurements to find the angle. The 345 rule is, pick a corner and measure 3 inches one way, and 4 inches the other way, and the ends of those two lines will be 5 inches IF that corner is square. Of course you use larger numbers for larger corners (ie multiply by 5 will mean 15, 20 and 25 inches if square). Now if you don't get 5 inches you need to figure out the angle using the Cosine Law. Much simpler just to use this online calculator. http://www.analyzemath.com/Geometry_...alculator.html Oh, trig. Of course. :-) That certainly avoids having a special tool. Thanks. |
#9
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
I think your tool is called a "T-Bevel". Not sure how it got its name, but
I've used one before and it helps for those angles that are only slightly out of a square 90 degrees. Cut one piece at 45, tack it up and use the bevel to determine the cut for the other side. I generally do the top piece at 45 on both ends to the correct length. Then cut the 'legs', leaving them a little longer than they need to be. They will have enough 'flex' in them to be able to check the mitered cut, and re-cut a time or two if necessary. Once I'm good with the miter, I cut the bottom of the leg square to the correct length. If the jam is out more than a few degrees you are better off using a protractor and making each cut half the total angle. That way they are the same length on each side and the molding will line up better at the cut. A bevel is still good for doing that. "Eric in North TX" wrote in message ups.com... Is that the one that has a slot down the middle of the blade? I bought one of those in a tool-buying frenzy about ten years ago, and didn't really know what it was for. That's the one. |
#10
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
On Sat, 30 Dec 2006 12:41:38 -0500, Harlan Messinger
wrote: A door I'm trying to put a casing around isn't square. How best to work out and cut the mitre angles for my top and side pieces? A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? Is the top jamb level?... use a two foot level under the header jamb. Speaking for myself. Take a four foot level to the top frame jamb and mark each side jamb where the reveal is set (horizontal), adjust reasonably, but keep level. Cut the normal 45 degree angles. and nail the top casing. Determine the reveal line at the top mark and mark a (vertical). Measure and cut the side casing. Same 45 cut. Doing the verticals from top down, adjust the casing a little to set the reveal as best you can.... nail it... as you move down I take an extra blade off at the bottom and not force the casing. If I can hold it up, match the cuts and shoot a nail in it. I work my way down, adjusting the reveal as necessary. -- Oren I have not failed. I've just found 10,000 ways that won't work. Thomas A. Edison |
#11
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Since you have the casing off why not just shim the door back to square.
Seems faster than messing around with odd angles and still ending up with a crooked door. "Harlan Messinger" wrote in message ... A door I'm trying to put a casing around isn't square. How best to work out and cut the mitre angles for my top and side pieces? A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? |
#12
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
On Sat, 30 Dec 2006 19:12:11 -0500, "calhoun"
wrote: Since you have the casing off why not just shim the door back to square. Seems faster than messing around with odd angles and still ending up with a crooked door. "Harlan Messinger" wrote in message ... A door I'm trying to put a casing around isn't square. How best to work out and cut the mitre angles for my top and side pieces? A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? That would require a level ... grin. -- Oren I have not failed. I've just found 10,000 ways that won't work. Thomas A. Edison |
#13
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
calhoun wrote:
Since you have the casing off why not just shim the door back to square. Seems faster than messing around with odd angles and still ending up with a crooked door. Just replacing the old moldings was a big enough challenge for me! Pulling out the jamb and starting again seems risky. |
#14
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
"Noozer" wrote in
news:ctylh.542095$R63.528072@pd7urf1no: "Eric in North TX" wrote in message ups.com... A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? You can use the 345 rule to check square and then use those measurements to find the angle. The 345 rule is, pick a corner and measure 3 inches one way, and 4 inches the other way, and the ends of those two lines will be 5 inches IF that corner is square. Of course you use larger numbers for larger corners (ie multiply by 5 will mean 15, 20 and 25 inches if square). Now if you don't get 5 inches you need to figure out the angle using the Cosine Law. Much simpler just to use this online calculator. or x**2 + y**2 = r**2. No Cos needed. All calcs have x**2 and SQRT fns pretty much. http://www.analyzemath.com/Geometry_...w_calculator.h tml |
#15
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Harlan Messinger wrote in
: Noozer wrote: "Eric in North TX" wrote in message ups.com... A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? You can use the 345 rule to check square and then use those measurements to find the angle. The 345 rule is, pick a corner and measure 3 inches one way, and 4 inches the other way, and the ends of those two lines will be 5 inches IF that corner is square. Of course you use larger numbers for larger corners (ie multiply by 5 will mean 15, 20 and 25 inches if square). Now if you don't get 5 inches you need to figure out the angle using the Cosine Law. Much simpler just to use this online calculator. http://www.analyzemath.com/Geometry_...law_calculator. html Oh, trig. Of course. :-) That certainly avoids having a special tool. Thanks. LOL! |
#16
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
On Sat, 30 Dec 2006 19:51:24 -0500, Harlan Messinger
wrote: calhoun wrote: Since you have the casing off why not just shim the door back to square. Seems faster than messing around with odd angles and still ending up with a crooked door. Just replacing the old moldings was a big enough challenge for me! Pulling out the jamb and starting again seems risky. He did say shims and I mentioned a level a few times. Why would you consider taking out the jamb to shim it? -- Oren I have not failed. I've just found 10,000 ways that won't work. Thomas A. Edison |
#17
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Oren wrote:
On Sat, 30 Dec 2006 19:51:24 -0500, Harlan Messinger wrote: calhoun wrote: Since you have the casing off why not just shim the door back to square. Seems faster than messing around with odd angles and still ending up with a crooked door. Just replacing the old moldings was a big enough challenge for me! Pulling out the jamb and starting again seems risky. He did say shims and I mentioned a level a few times. Why would you consider taking out the jamb to shim it? Obviously I'm missing something. From what I see, the jambs are set level and plumb (supposedly) by shimming them--and then they're nailed into place. Once they're nailed, how can I shift them without taking the nails out? |
#18
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
Eric in North TX wrote: A large protractor, or is there a device that fits inside interior angles (such as inside the door frame) to measure them? I have a device, not sure what it is called, it has a wooden handle with a thin metal blade that folds out like a pocket knife that is handy for finding angles, it is a pretty common tool, not hard to find. You may encounter another problem, once you find the angles, the cuts may not have the same face length. Unless it is horribly out of square, it may be better to just cut the miters 45 and at least have part of it right. The correct name is "bevel gauge". I call it an "angle guesser" You fit it too the corner, tighten the clamp. Then all you have to do (hah!) is bisect that angle. How to do that? I could at one time on a planet long ago and far away explain it using geometry. Real world is "Take a guess then make repeated cuts" with your your saw changing the angle slightly each time until you get it right. Use scrap wood for the tests. Harry K |
#19
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
"Harlan Messinger" wrote in message ... Oren wrote: On Sat, 30 Dec 2006 19:51:24 -0500, Harlan Messinger wrote: calhoun wrote: Since you have the casing off why not just shim the door back to square. Seems faster than messing around with odd angles and still ending up with a crooked door. Just replacing the old moldings was a big enough challenge for me! Pulling out the jamb and starting again seems risky. He did say shims and I mentioned a level a few times. Why would you consider taking out the jamb to shim it? Obviously I'm missing something. From what I see, the jambs are set level and plumb (supposedly) by shimming them--and then they're nailed into place. Once they're nailed, how can I shift them without taking the nails out? Depends how many nails, and where they are placed. Sometimes you can fine-tune reality with some hardwood blocks and a BFH. Stanley wonder bars are great, too, if you have a solid header and jack studs to pry against. Just how much out of square are we talking about? If this is an interior door, I'd be inclined to rip the sucker out, and reinstall properly. God invented Sawzalls and stubby steel-nail-cutting blades for a reason. A couple hours work, tops. Even if you get lucky on the trim angles, it will annoy you every time you look at it or use it. Exterior doors are a lot harder, especially if they are trapped in brick or siding. What I would be more concerned about, and nobody in this thread has addressed, is why is the door out of square? Has it always been this way, or is this a recent problem? Bad install job, or settled foundation? Does it move around depending on time of year and weather conditions? How old is house? I'd only be inclined to fake a non-square door on an older house with no practical way to fix the underlying problem. If this is a modern (mid-20th century or newer) house, and the floors and walls were level, square, and stable, I'd definitely rip out, and reinstall properly, or replace if the door was junk anyway. aem sends... |
#21
Posted to alt.home.repair
|
|||
|
|||
Casing for door out of square
On Sat, 30 Dec 2006 21:57:58 -0500, Harlan Messinger
wrote: Oren wrote: On Sat, 30 Dec 2006 19:51:24 -0500, Harlan Messinger wrote: calhoun wrote: Since you have the casing off why not just shim the door back to square. Seems faster than messing around with odd angles and still ending up with a crooked door. Just replacing the old moldings was a big enough challenge for me! Pulling out the jamb and starting again seems risky. He did say shims and I mentioned a level a few times. Why would you consider taking out the jamb to shim it? Obviously I'm missing something. From what I see, the jambs are set level and plumb (supposedly) by shimming them--and then they're nailed into place. Once they're nailed, how can I shift them without taking the nails out? I use a small wonder / flat bar. Behind the jamb prying against the jack studs to move the jamb out a little. Loosen enough to re-shim, plumb, level and a another nail to secure it. -- Oren I have not failed. I've just found 10,000 ways that won't work. Thomas A. Edison |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Brick Door Casing | Home Repair | |||
OT? need help casing a pocket door | Woodworking | |||
Door Casing for Arches | Woodworking | |||
door casing | Woodworking | |||
door casing | Home Repair |