A fixture for a door or window includes a fixed frame and a movable frame. At least one of the fixed frame or the movable frame includes a first metal profile made of aluminum or aluminum alloy, a second metal profile also made of aluminum or aluminum alloy, and at least one laser joint between the first profile and the second profile. A mechanical joint may also be provided between the first profile and the second profile. The mechanical joint including a metal bracket made of aluminum or aluminum alloy.

A sliding door system having one or more sliding doors, door frames (e.g., static frames of different sizes for different wall thicknesses or adjustable frames that can be used to fit different wall thicknesses), sliding door hardware (e.g., tracks, wheels, soft closers, stops, or the like), header, door receiver, a plurality of seals, or the like. The sliding door system utilizes improvements to the components in order to provide security features, such as electromagnetic (EMCEMI/RFI) shielding, sound resistance, blast resistance, forced entry and/or ballistic resistance, privacy features, light reduction, fire and/or smoke resistance, or the like to the sliding door system. In particular, the sliding door system allows for the use of the security features with the static or adjustable door frames described herein.