Categories Guide

What do you use a plumb bob for?

A plumb bob, or plummet, is a weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical reference line, or plumb-line. It is a precursor to the spirit level and used to establish a vertical datum.

When would you use a plumb bob?

The plumb bob is useful in establishing vertical for a wall in construction or a doorjamb when hanging a door. A spirit level will also accomplish those tasks, but some jobs are much more easily done using the tool.

What is the difference between plumb and level?

A vertical framing piece, such as a post or stud, is ” plumb” when it’s perfectly straight, and when a horizontal member has no tilt, it is “level.” The tools that carpenters and homeowners use to determine plumb and level all rely in some way on gravity.

What can I use instead of a plumb bob?

Many chalk lines can be used as plumb-bobs as they are essentially a weight tied to a string. Some even have a pointed bottom to make accurate marking easier.

Why do you need to create a plumb line?

You should use a plumb line whenever you need to make a straight, vertical line – whether that is for hanging wallpaper, putting up a painting, or checking the angle of a door.

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What does a plumb bob look like?

A plumb bob, or plummet, is a weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical reference line, or plumb-line. It is a precursor to the spirit level and used to establish a vertical datum.

How do I make sure something is plumb?

Most levels have two liquid-filled vials near each end, and you can check for plumb by looking at either vial. When the bubble in the plumb vial is perfectly centered within the vial, the vertical member or structure is perfectly plumb.

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.

Should a deck be perfectly level?

In a nutshell, the easy answer is this— no, your deck should never be level with your home. That’s because of the threat most feared by even the bravest DIYers and homeowners: water damage. If your deck or patio sits at the same height as your home, you’re making it easy for water to get inside and wreak havoc.

What kind of string do you use for a plumb-bob?

How to replace the string on a plumb-bob. From time to time, you may need to replace the string on a plumb-bob. For a long working life, choosing a synthetic string such as one made from nylon or polyethylene is advised as these are waterproof, rot-proof and will not easily stretch.

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Why is it called a plumb-bob?

The first plumb-bobs were made of stone. Ancient civilisations used plumb-bobs for many applications and they made their tools out of the materials that were readily available to them. In later ages, plumb-bobs were cast from lead, and it is from this that the plumb-bob gets its name. “Plumbum” is Latin for lead.

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