What hinge should I use?

To know how heavy a hinge you should put on a gate, it helps to know a few things. You need to know how much the gate weighs, and how long it is, and how high it is. The height measurement should be the distance between the hinges, and the length will be divided in half to give you the approximate center of gravity. (We don't have to be precision engineers here, within a few inches should be close enough.)

Once you know these things, finding out how big a load that gate will put on the hinge and post is easy to find. Multiply the gate weight in pounds by ½ gate length in feet. Divide that result by the height of the gate in feet. The answer you get will be the load, in pounds that the gate puts on the hinge and post.

Modern Fence Technologies has published a series of charts that show the load ratings of the T-rods manufactured for MFT hinges. The T-rod is typically the point of failure for a hinge that is overloaded, so if you match the T-rod to the load, your hinge will be properly sized to support your gate.

To see this formula in action, view this video. In it you see a demonstration of this formula modified to reflect added load on the gate, and the comments section explains the math. For a gate only, with no extra load, use the following formula: Gate Weight X ½ Gate Length/Gate Height. Remember, gate height is actually the distance between the hinges.

For more about this see: Choosing the Right Hinge

Does your pool have seat belts?

Does your pool have seat belts?

Why do we have seat belts in cars? Do they prevent car crashes? Obviously not. But they can help make the injuries crashes can cause less severe. Why do we have fences around pools? Do they prevent drowning? No, a fence alone cannot prevent drowning. When properly used, both seat belts and pool fences help to prevent death and horrible injury in the event of an accident. No seat belt or fence can make the world entirely safe.

In the past several years there has been a coordinated campaign to mislead the buying public about the safety of swimming pools and fences. It is important to separate fact from emotion when evaluating the relative safety of pools, pool fences and gates.

The first thing to remember is that if there is a body of water one inch deep, the potential for a drowning exists. No fence is fool proof. The American Society for Testing and Materials, (ASTM) standards for fence and gates around pools and spas is a basic minimum standard, which is based on best practice to prevent the average five year old child from being able to reach to open or climb a fence or gate. International Building Code Section 305.3 reads virtually identically to the ASTM standards.

We must also bear in mind that there is no single recognized legal authority that has specified exact standards for every pool fence. Each municipality has its own code determining minimum fence and gate requirements for pools and spas. Beyond that, insurance companies may refuse to insure a homeowner with a pool or spa that doesn't meet company underwriting requirements.

There is no style or brand of hardware or fence that can make a pool or spa safe. They can, however, be used to make a pool or spa safer. To that end, municipalities and the ASTM have written generic standards that outline the features and dimensions allowable for pool and spa fencing and gates. Any fence and hardware that meets those standards and is acceptable to the homeowner's insurance company are all that is necessary to make a pool or spa as safe as it can be. The rest is up to the user.

The user is ultimately responsible for the safety of the pool. Therefore, it is fitting that the user have the freedom to choose the fence, gate and hardware that serves his or her need, within the framework of ASTM and local guidelines. Expensive marketing campaigns to the contrary, the safest pool gate hardware is the hardware that the user will use properly, and that won't easily break down and fail.