Bunk Bed Material: Metal frame (coated steel). Color: Silver / Light gray (as in the picture). Mattress size: 90 × 200 cm for each bed (single size). Maximum thickness for the top mattress: Usually 13–15 cm for safety. Ladder: Fixed metal in the middle or side (depending on the model). Top safety barrier: Present to prevent falls. Overall height: Approximately 160–170 cm. Weight capacity: About 100 kg per bed (varies slightly). Two gray mattresses.