A patio door is a glass door, half of which is fixed in place. The other half of the sliding glass door slides open over the fixed portion. It is a source of natural light and a great way to access your porch, deck, back yard or pool area.

There are many options to consider when choosing replacement patio doors. The size of your wall area and how much natural light you want to let in will help you determine the best size for your sliding glass door. Standard patio doors are 6 feet, 8 inches tall. Width size varies depending on whether the patio door is a two- or three-panel configuration.


A patio door should be one of the most inviting parts of your home. Our patio doors are attractive, durable, energy efficient, and as maintenance-free as can be. Other features include:

  • Customizable SizesDouble glazing offers standard patio door sizes and also makes custom doors to meet your specifications.
  • Unlimited exterior color: Choose from the standard exterior colors Soft-Lite offers or take advantage of our custom color matching program and choose virtually any color under the sun.
  • Woodgrains: Interior woodgrains are available so you can match your replacement sliding glass doors to your fine furniture.
  • Attractive Handles: Match your patio door handles to your décor with Soft-Lite’s different handle colors and styles .
  • Secure Locking System: Our deluxe handles provide multi-point locking security by locking the door in four locations. Standard handles are single-lock handles.
  • Heavy Duty Brass RollersOur replacement patio doors glide on heavy duty rollers that provide long-lasting, trouble-free operation.
  • Fiberglass Sill: The fiberglass Thermal Glide™ sill is very sturdy and will hold up well to traffic for many years without rotting or warping. Because it is not metal, it will not conduct cold, making your patio door even more energy efficient.
  • Heavy Duty Screen Door: Our sliding screen door is built to remain strong. It is an extruded and mitered screen door that resists twisting, warping and “rack jumping.”
  • Two-Panel Doors are Fully Assembled and Tested Before Shipping: Frames and sashes are welded at the plant and two-panel patio doors are shipped fully assembled. All two-panel sliding glass doors are also tested before shipment to ensure that they roll, close and lock smoothly. (On three panel doors the center panel is packaged separately).

How much does it cost to install a sliding patio door?

A sliding patio door is a glass door, half of which is fixed in place and half which slides over the fixed portion. Patio doors are installed because they are a source of natural light into a house or room and they provide easy access to your porch, backyard, deck, or pool. Patio doors are great to install as they provide a great level of security, weather protection, and a beautiful appearance.

The project cost is dependent on many factors such as the material, door type, pane, and brand. The average project to install a 6′-wide sliding patio door averages $1,500 – $2,000 for the project. This price includes the door, installation fees, and additional costs such as locks and door pane.

How to measure for a sliding patio door

If you are replacing an existing sliding patio door or installing a new door, one of the most important steps is to correctly measure for your new door so that it will fit properly. Sliding patio doors often come in standard sizes so it shouldn’t be too complicated to order a door that will fit. The typical patio door opening is 6’8″ tall and 6 to 12 feet wide.

To measure your patio sliding door opening for replacement, remove the wood trim first so that you can get more accurate measurements. Measure from one top corner to the other to get the width, and measure from the top corner to the bottom corner on the same side to get the height. Take 3 width measurements at different locations and average them, and 3 height measurements at different locations and average them, and submit these averages to the contractor. Make sure you measure your sliding patio door from the inside, as the measurements will be more accurate.

This cost guide is based on installing a 6’-wide sliding patio door. It is important to keep in mind that the bigger the size of the door, the higher the cost.