In construction, a framing member or wall installed so it is perfectly vertical, or plumb, will transfer its supporting load directly downward (compression stress), giving it maximum load-bearing capacity.
What is the function of a plumb line?
A plumb line is a piece of string with a weight attached to the end that is used to check that something such as a wall is vertical or that it slopes at the correct angle.
What does it mean by plumb line?
Definition of plumb line
1 : a line (as of cord) that has at one end a weight (such as a plumb bob) and is used especially to determine verticality. 2 : a line directed to the center of gravity of the earth : a vertical line.
How do you check if a wall is plumb?
Something that is “plumb” runs perpendicular to the horizon—meaning that when it intersects the horizon, it makes a right (90 degree) angle. You can measure if something is plumb by using a plumb bob or a spirit or laser level.
What does plumb mean in framing?
vertical
carpentry projects must be square, level, and plumb. Square means that corners are 90 degrees. Level is always gauged by a device, such as a carpenter’s level, but level does not always mean parallel to the ground. Plumb is vertical, most accurately gauged by a plumb bob.
What is another word for plumb line?
The words perpendicular and vertical are common synonyms of plumb. While all three words mean “being at right angles to a base line,” plumb stresses an exact verticality determined (as with a plumb line) by earth’s gravity.
How do I find a plumb line?
No house has perfectly vertical walls. If wall coverings are to look natural, they must be hung against a plumb line. To make a plumb line, rub a string with colored chalk and tack it to the top of the wall. Then attach a plumb bob (or other small weight) to the loose end.
What is a plumb line in surveying?
plumb line. [surveying] A line that corresponds to the direction of gravity at a point on the earth’s surface; the line along which an object will fall when dropped.
What is construction Plumbness?
What Is Plumb? In construction or carpentry, the term plumb refers to a line or feature that is perfectly vertical. In technical design, it represents an imaginary line that runs straight to the center of the earth. Plumb is the counterpart to level, which means to be perfectly horizontal.
What is a measuring line?
Definition of measure line
: a line of known or ascertainable length put into or allowed to remain in a picture (as a linear perspective or a photograph) and often used in the determination or measurement of other lines.
How plumb Should a wall be?
The Residential Construction Performance Guidelines suggest a maximum out of plumb of 3/8″ in 32″ vertically, while the Handbook of Construction Tolerances suggests that this may need to be tightened to 1/4″ in 10ˈ when finishes such as gypsum wallboard and plaster are used.
Why are my walls not straight?
Uneven walls are usually a case of the framing being installed slightly on an angle or because of a warp in the wood. The best time to fix an uneven wall is before any drywall is applied, but there are still ways to fix the issue even after the finish material is on the walls.
How do I make sure a wall is flat?
Hammer a small nail into the ceiling just next to your wall. Hang your plumb bob from the small nail so that it almost reaches the floor. You will use this plumb bob to check that your wall is straight from top to bottom.
What happens if a wall is out of plumb?
What is an out-of-plumb wall? If it’s “out of plumb” that means that it’s not level. So an out of plumb wall means the wall is leaning in one direction or another.
What is a vertical plumb line?
In simplest form, a plumb line consists of a piece of string with a weight at the bottom, usually with a pointed tip. When you hang the line downward, the weight pulls the string taut and creates a straight, vertical line.
What do you call a wall that is not straight?
A pony wall is nothing more than a short wall, and the term is often used interchangeably with “knee wall” or “cripple wall.” Read this guide to learn what pony walls are and how to build one yourself.
What’s the opposite of plumb?
What is the opposite of plumb?
flat | recumbent |
---|---|
level | prone |
prostrate | reclining |
procumbent | supine |
lying | decumbent |
What’s another word for plumbing?
What is another word for plumbing?
pipes | drains |
---|---|
sanitation | waterworks |
fixtures | water system |
drainage system |
What is the antonym of the word plump ‘?
What is the opposite of plump?
emaciated | skinny |
---|---|
thin | anorexic |
weak | bony |
scrawny | lanky |
lean | slender |
Do you need a plumb line to hang wallpaper?
For a successful hanging job, it is essential that your wallpaper be hung straight. Most homes, however, have walls and ceilings that are often slightly out of alignment. To compensate for this, you must begin your job with a truly vertical plumb line.
How do you mark a level line on a wall?
If you need to make a long, level line (or a plumb line) and don’t own a laser, try this method. Mark the desired height of your line on the wall. Hold your plumbers level at the mark and adjust it until the bubble is centered. Then make a mark at the opposite end of the level (Photo 1).