Installing, fixing and replacing commercial door hinges is a relatively simple skill to learn. The training can be accomplished in a short amount of time, and, with the proper tools, you or your employees can be working on door hinges that same day.

Most business door hinges are installed and fixed in the same way as residential door hinges, so door hinges education and training that is specific to businesses is not required. A lesson on installing and fixing door hinges should include:

1. Articles that detail how to install and repair interior door hinges;

2. Videos that show proper door hinge installation techniques;

3. And training for the installation of specialty door hinges.

Action Steps
The best contacts and resources to help you get it done

Read instructions about installing door hinges

Whether you're installing brass door hinges, a metal door hinge or even a barn door hinge, a great way to start the learning process is to find written instructions. If you have a printer, print out the instructions and bring them with you to the job site for easy reference while you are working on the hinges.

I recommend: Check out eHow for instructions on how to install door hinges in nine easy steps. The instructions explain everything from measuring to screwing the hinges into place to connecting the hinge pin. DoItYourself.com helps you choose the right hinge and install it. The website includes great pictures that you can reference as you work.

Watch a video that explains how to install door hinges

As good as written instructions are, there is no better way to learn to install, fix and repair door hinges than by watching a video that contains a demonstration by an expert. Videos allow you to actually watch someone work on door hinges, and the narrations often give good tips of the trade.

I recommend: YouTube has an excellent video from builder Tim Carter that shows you exactly how to install door hinges. Expert Village from Demand Media has a great quick video that shows you how to use toothpicks to fix a door hinge that is coming loose.

Learn to install specialty door hinges

Specialty door hinges, such as cabinet hinges, bookcase hinges, European hinges and car door hinges require special training. If you plan to install this specialty door hardware, then be sure to find the right instructions for the job.

I recommend: Take a look at Refurber for photos and step-by-step directions on how to install and adjust Eurpoean door hinges, where the hardware is hidden from view. Hingedummy.info teaches you to install cabinet door hinges, such as a butt hinge, in six easy steps.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  A power screwdriver makes installing door hinges much faster and easier.
• •  When installing door hinges, keep a measuring tape and pencil handy.

As you are are searching for door hardware, door hinges should take just as high of a priority as your handle or lock kits. Door hinges are what allow you to attach, support, and turn your door, and they consist of two plates joined together by a pin. This supports the door and connects it to its frame, thus enabling you to swing it open or closed.

Whether you are looking for a gravity hinge, strap hinge, pintle hinge, H-hinge, action hinge, butterfly hinge, an HL-hinge, side hinge or a dovetail hinge, the right hinge is out there for you.

To find the appropriate hinge for your need:

1. Determine if you need a standard or a specialty hinge.

2. Find door hinge merchants in your area or online.

3. Either hire a professional or seek professional training on installing door hinges.

Action Steps
The best contacts and resources to help you get it done

Compare door hardware merchants on price and quality

Start your shopping for your door hinges online. You can easily price compare or send away for company catalogs.

I recommend: Hardware Source sells Baldwin Hinges, Plain Bearing Butt Hinges, Ball Bearing Butt Hinges, Spring Hinges, Double Acting Hinges, Pivot Hinges, Screen Door Hinges, Wide Throw Hinges, Swing Clear Hinges, Invisible Hinges, Soss Hinges as well as other door hardware. Baltimore Hardware Company sells residential and commercial door hinges. Woodworker's HARDWARE offers hundreds of styles and brands of cabinet door hinges.

Find suppliers of brass door hinges to fit your specific need

You can find any number of providers of residential or business door hinges to fit your any need.

I recommend: Ace Hardware sells standard door hinges for use on lightweight residential doors. RPM Hardware sells a selection of decorative and funcational exterior and interior door hinges.

Look for a specialty or specific metal door hinge

Don't settle for ordinary door hinges. Instead seek out decorative or specialty door hinges to make your door hinges either stand out or disappear completely.

I recommend: Spokane Hardware Supply, Inc.'s door hinges include many styles and finishes of olive knuckle hinges. They also bring you swing clear hinges good for doors needing easy handicap accessibility. D. Lawless Hardware also offers a wide variety including pair pin zinc plated hinges, antique brass drop front desk hinges and 270 degree satin bronze hinges.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  If you don't think you can handle installation or picking out of specific door hinges, consider purchasing your door pre-hung, which means that the door already comes pre-hung to the door frame and does not require seperate door hinge installation.
• •  Go with invisible cabinet door hinges if you are wanting a flush fit, smooth operation and want your door hinge concealed from view.

Caustic soda or sodium hydroxide is an alkaline material. It is white and crystalline in nature and has no odor. Several domestic cleaning products contain it, as it has a slippery nature. Caustic soda is also highly corrosive and exposure to the concentrated liquid can cause irritation in eyes and burn the skin.

Caustic soda readily absorbs moisture from the air. Caustic soda has many applications in the paper manufacturing, soap making, metal cleaning and fabric industries.

Read on to learn more common caustic soda key terms.

Action Steps
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Hygroscopic

Caustic soda is a hygroscopic substance. The term hygroscopic essentially refers to the property of a substance to absorb water or moisture from the air. In some cases, you can remove the water by heating or other procedures.

I recommend: You can get detailed information on hygroscopic materials at Interactive Learning Paradigms Incorporated (ILPI).

Sodium hydroxide

While the common person refers to it as caustic soda, the scientific name of the substance is sodium hydroxide or NaOH.

I recommend: Learn more about sodium hydroxide at SodiumHydroxide.org, an information resource on caustic soda.

Chlor-alkali process

Chlor-alkali is the electrolysis of common salt that produces chlorine and an alkali, most commonly caustic soda. You can manufacture caustic soda by using membrane-cell, diaphragm cell or mercury cell chlor-alkali processes.

I recommend: To get more information on chlor-alkali processes, read through the information at GreenFacts, an organization promoting environmental safety.

Lye

Lye is another name for caustic soda. It is a deliquescent salt and it dissolves or melts when you expose it to air. Hence, you will need to store it in airtight containers. Many household items like soap, fabrics and paper contain lye.

I recommend: You can learn more about lye at wiseGEEK an online information resource.

Arrhenius base

Caustic soda is an alkaline salt and a very good example of a water-soluble base. In chemistry, it is more popular as an Arrhenius base that forms hydroxide ions when dissolved in water.

I recommend: To get to know more on arrhenius bases, read through the document at Salisbury University Department of Chemistry.

Ionic bonding

Caustic soda has an ionic bonding, which refers to a force of attraction between opposite charges of an ion. Caustic soda contains sodium cations and hydroxide anions. When these react with the base, they form water along with the corresponding salts.

I recommend: Find out more on ionic bonding at Visionlearning, an educational resource that provides various science learning modules.