Job Site
Construction location.

Jogging
Another term for inching, which is the movement of a crane hook, bridge or trolley when they are moved in short, jerky increments, such as stop and start.

Join
1. To put or bring together.
2. To make into one; unite.
3. To fasten pieces together.
4. To become part or a member of something.

Joinder
Types of legal joinders where one or more parties may unite with or join other parties in a legal action even though the party may not be a direct part of the action. A third party has a supervisory interest in an action, but does not have a direct interest to the action.

Joinery
The art or craft of producing woodwork by use of a variety of joint-making techniques.

Joint
Combined action of two or more people who are either for or against something. Alternately, used to indicate a common property ownership interest in real estate. Indicates a shared liability in terms of a contractual relationship.

Joint and Several Liability
Situation wherein each borrower, on the same note, is held fully liable for the entire amount of the debt, not just a portion. The creditor may demand full repayment from any individual.

Joint Clearance
Gap between surfaces to be joined by welding, where the gap will help ensure that the weld filler penetrates to the needed depth in the base metal.

Joint Compound
Putty like material, which is used to cover fastener heads or to embed joint tape for bonding when working with drywall. There is also a water resistant type for use with water resistant drywall or for exterior work.

Joint Compound, All-purpose
Drywall joint and topping compound combination that has many of the qualities of smooth spreading topping compound but having greater adhesive ability. Used for covering joints and fasteners or for embedding tape, it comes premixed or packaged in a dry powder form, which is to be mixed with water.

Joint Compound, Debonding
Defect in the installation of drywall, which causes the joint compound to lose its bond with the tape or the drywall. Foreign substances, such as dirt or improper mixing of the compound or old compound, cause this problem, which may be corrected by removal of the loose tape and a portion of the dried compound. Then, a new application may be done without having the repaired section raised higher than the balance.

Joint Compound, Topping
Finely grained compound which is usable for second and third coats over standard drywall joint compound because it spreads smoothly and sands better than standard compounds which makes it good for covering joint and fastener heads. It does not, however, have the necessary adhesive qualities to make it usable for embedding tape.

Joint Cracks
Defect in the application of drywall causing cracks to appear in the joints between the panels. Center cracks, running along the center of the joint, occur from building settlement (which would not be an application defect) or applying layers of joint compound too thickly. The cracks that form along the edges of a joint occur when joint compound is applied too thickly or when the compound dries too quickly. The drying process can be slowed down by rolling a wet roller along the joints to keep it moist. For repair, the tape and compound must be removed and replaced.

Joint Depression
Defect in the application of drywall, which causes an indentation in the joint between the panels and is caused by either too much sanding of the joint or two little or too thin compound was used. Sanding and application of additional joint compound is required to repair this flaw.

Joint Design
The dimensions and configuration of a weld joint.

Joint Discoloration
Drywall defect caused by moisture trapped in the joint prior to sealing or from the use of poor quality paint or painting when humid, which turns the joint color darker or lighter than the balance of the wall.

Joint Efficiency Factor
Measure of the strength of a weld joint as compared to the base metal strength by using numbers one or less. A factor of one indicates that the weld and the base metal are equal in strength. Less than one indicates that the strength of the weld is lesser than the base metal.

Joint Filler
Expansion joints in concrete structures are filled with plastic material or preformed cork.

Joint Liability
Two or more people sharing the responsibility of fulfilling the terms of a debt.

Joint Note
More than one maker on a note where if one or more of the makers default on the note, all of the makers are sued jointly, rather than just one or all, to make restitution.

Joint Ownership
Ownership of real estate with two or more individuals having equal ownership with, upon the death of one owner, the property is transferred to the survivor.

Joint Penetration
Depth of the penetration of the weld metal as measured from the surface of the base metal.

Joint Photographing
Defect in drywall application where the joint tape or the shadow of the joint tape shows through the wallboard. High humidity which delays the drying of the second and third coats, dry tape having absorbed too much moisture from the joint compound and excess joint compound left under the joint tape are some of the causes of this condition. Also called tape photographing, this condition can be corrected by sanding the compound covering the tape, feathering it out into the drywall surface, and then covering it with thin coats of joint compound.

Joint Reinforcement
1. Steel reinforcement placed in a horizontal mortar joint.
2. Steel wire shapes that are used to reinforce masonry unit joints.
3. Extra weld metal, which is added to increase the strength of the joint.

Joint Runner
Steel clamp, which fits around a pipe to keep molten lead from escaping as it is poured through a special opening in the clamp, while making a horizontal lead and oakum pipe joint. When the lead flows into the oakum packed joint, it hardens to make a seal so that the joint runner can be removed when the lead cools. Lead and oakum joints are often used with hub and spigot drainage pipe.

Joint Striking Tool
Tool that is used to shape and smooth mortar joints before the mortar is set.

Joint Tape
Paper or fiberglass mesh tape which covers and reinforces wall joints. A crease two inches wide is used as a guide to fold the tape when it is used in corner joints. Joint tape is embedded in joint compound, bonding it to the wallboard.

Joint Tenancy
Equal ownership, by two or more people, each of whom has an undivided interest, with the right of survivorship.

Joint Venture
An agreement between two or more parties to invest in a specific single business or property. Although not a continuing relationship, it is treated as a partnership for income tax purposes.

Jointer
1. Hand tool, also called a groover, which is used to form an indentation or groove, in wet concrete.
2. Power tool which smoothes wood for precise joints with rotating cutter blades.

Jointer Plane
Hand tool which smoothes surfaces and straightens edges, with its long base, on long cuts of wood.

Joist
Horizontal, parallel beams directly supporting the boards of a floor or the laths of a ceiling.

Joist Cleating
Installation of cleats on existing joists and beams to support additional joists that are added.

Joist Hanger
Sheet metal fixture that is preformed and connects the end of a joist to a structural piece that is at right angles to the joist.

Joist Tie-in
Adding joist so that the new joist rests on the existing sill.

Journal
Rotary axle or shaft portion, which turns in a bearing.

Journal Box
A casing or housing for a journal, which is the rotary axle or shaft portion, which turns in a bearing.

Journeyman
Worker, who has already served his apprenticeship to work in a trade such as plumbing or carpentry, but who is not yet a supervisor.