Most doors are manufactured in standard sizes to suit homes. Patio sliding doors are typical steel structure and may be accompanied by a screen door. Patio sliding doors mounted on tracks courtyard raised under the upper and lower door. The doors are vulnerable to damage and discoloration inside and out, and this can cause a homeowner to buy replacements. Take some steps before ordering a patio door replacement to ensure a proper fit.
Measure the height of the opening of the patio sliding doors in shape. Push one of the glass doors are opened and measure the frame from top to bottom. Measure from the bottom of the opening excluding the top tracks for the rollers. Standard heights doors are 6 feet 8 inches, 6 feet 11 inches and 8 feet.
Measure the width of the door to be replaced. There are two standard sizes of width to 3 feet and 4 feet. Measure the width of the tracks. Most are 1/4 inch wide or less, but some are 5/8 inch or wider. It can be difficult to find parts that fit sliding doors on wider tracks.