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On average, sliding glass patio doors can last between 20 and 30 years. Their actual lifespan depends on several factors, including proper installation, frequency of use, and regular maintenance of the sliding components. While this is the typical range, minor problems and the need for occasional repairs or part replacements can still occur. Addressing issues as soon as they arise and performing regular maintenance will help extend the door's life. If the door is older and requires frequent or significant repairs, it may be more cost-effective to replace the entire unit.

Fire doors are constructed to have certain resistance levels regarding fire. A traditional door can typically resist fire for less than one minute, whereas fire doors can resist it for 30 to 120 minutes, depending on the fire door rating. Fire doors give you and your family a better chance of safely escaping during a fire than standard doors. 

Depending on the type of French doors you choose, they may be more expensive than sliding doors. Generally speaking, a single in-swing or out-swing French door will cost less than a sliding door, as it contains fewer materials and is easier to install. However, sliding doors usually have a slightly lower price tag, especially when compared to the standard double in-swing or double out-swing French doors.

The proper height for a gate latch is between 34 and 48 inches above the ground. This height will not only be comfortable for you and your family to use, but it’ll also ensure that your latch complies with the International Building Code.

Sometimes one-way latches are installed very high on the gate to make it easier to open, although it’s only easier for tall people. Installing a two-way latch at the proper height is a good idea.