Tuesday, January 31, 2012

How to quadrilateral a angle

A quadrilateral projection is one of the most leading facets of quality construction, in particular, framing.  If you do not have a quadrilateral corner, you will not have a quadrilateral room, causing the walls to be dissimilar lengths, cabinets won't fit, etc.  Obviously a framing quadrilateral is one of the best ways to ensure a quadrilateral corner, but this is not all the time practical or available.

So, without a exact tool, how can you ensure a quadrilateral corner?  All you need is a tape measure and geometry will do the rest.  The formula we are going to use is called the 3-4-5 rule.  Geometrically, if you have a triangle (which by definition means you have a 90 degree ,or square, corner) that has one side at 3 units (such as feet) and other side at 4 units, then the diagonal will be 5 units.  If these measurements exist, then you are sure to have a quadrilateral corner.

Carpentry Framing

To use the 3-4-5 rule, simply measure out two sides of a triangle, one side for each wall, on the inside of the corner.  This is easiest to do before you build the wall or set the plate.  Often it is best to do this with chalk lines or a single piece of wood until you have found square.  measure one side (wall) to 3 feet and make a mark.  measure the other side (wall) to 4 feet.  If your wall is quadrilateral then the diagonal in the middle of the two marks will be exactly 5 feet.  If the diagonal measures more than 5 feet, your projection is over 90 degrees and you must move one of the walls towards you.  If you are under 5 feet your are less than 90 degrees and you must move one of the walls away from you.  It is that simple.  Just keep adjusting the marks until meet the 3-4-5 rule.

How to quadrilateral a angle

A quadrilateral projection is one of the most leading facets of quality construction, in particular, framing.  If you do not have a quadrilateral corner, you will not have a quadrilateral room, causing the walls to be dissimilar lengths, cabinets won't fit, etc.  Obviously a framing quadrilateral is one of the best ways to ensure a quadrilateral corner, but this is not all the time practical or available.

So, without a exact tool, how can you ensure a quadrilateral corner?  All you need is a tape measure and geometry will do the rest.  The formula we are going to use is called the 3-4-5 rule.  Geometrically, if you have a triangle (which by definition means you have a 90 degree ,or square, corner) that has one side at 3 units (such as feet) and other side at 4 units, then the diagonal will be 5 units.  If these measurements exist, then you are sure to have a quadrilateral corner.

Carpentry Framing

To use the 3-4-5 rule, simply measure out two sides of a triangle, one side for each wall, on the inside of the corner.  This is easiest to do before you build the wall or set the plate.  Often it is best to do this with chalk lines or a single piece of wood until you have found square.  measure one side (wall) to 3 feet and make a mark.  measure the other side (wall) to 4 feet.  If your wall is quadrilateral then the diagonal in the middle of the two marks will be exactly 5 feet.  If the diagonal measures more than 5 feet, your projection is over 90 degrees and you must move one of the walls towards you.  If you are under 5 feet your are less than 90 degrees and you must move one of the walls away from you.  It is that simple.  Just keep adjusting the marks until meet the 3-4-5 rule.

How to quadrilateral a angle

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