An aluminium sliding door is a patio door with an aluminium frame and two glass panels. Other types of aluminium sliding doors with metal panels are not as readily available but may be custom-designed and made for patio privacy screens and indoor room dividers. Commercial aluminium sliding doors often have a criss-crossed aluminium frame with glass panels. A good quality aluminium sliding door has well-jointed corners, so the frames hold together well and stand up to daily use.

Aluminium sliding doors are widely used in commercial and residential settings due to their durability and modern aesthetic.

Regarding maintenance, aluminium sliding doors require minimal upkeep to stay in good condition. The aluminium frames are made to last for decades, and their durability against weather conditions means they are unlikely to warp or damage easily. Cleaning them is a breeze, thanks to their smooth surfaces, seemingly making it easier for dust and stains to wipe off.