The aircraft is made from fibreglass. Its 20 m (65.6 ft) span wing has an area of 17.82 m2 (191.8 sq ft) and mounts air brakes, as well as winglets. Optional wing tips for 17.5 m (57.4 ft) with winglets are available, as are 17 m (55.8 ft) ones without winglets for aerobatics. All controls are automatically connected upon assembly. Despite its fixed landing gear, the SZD-54 has a best glide ratio of 42:1 with the 20 m (65.6 ft) span wing.
The SZD-54 has a design airframe life of 15,000 hours and comes from the factory with a two year warranty.