# item.guide
Side-by-Side Comparison Cabin Interiors & Galley Standards

ATLAS vs. KSSU Galley Standards vs. Passenger Seat Pitch & Width

Comparing 2 standards across 11 specifications. 11 key differences identified.

Comparing:
ATLAS vs. KSSU Galley Standards
Passenger Seat Pitch & Width

Commercial aircraft galleys adhere to two non-interchangeable international standards for catering service trolleys and Standard Unit (SU) boxes: ATLAS (dominant on ~80% of global airlines, 305 mm cart width) and KSSU (used by KLM, Swiss, SAS, UTA, 301 mm cart width).

View full ATLAS vs. KSSU Galley Standards spec sheet →

Airline seating comfort is defined by Seat Pitch (the distance from any point on a seat to the exact same point on the seat in front, typically 28" to 32" in Economy) and Seat Width (cushion width between armrests, 17" to 18.5").

View full Passenger Seat Pitch & Width spec sheet →

Specification Comparison Table

11 Parameters
Parameter / Spec
Dominant Standard
ATLAS (used by ~80% of world airlines including Lufthansa, BA, Emirates)
KSSU Origin
KSSU Consortium (KLM, SAS, Swissair, UTA)
Full-Size Trolley Length
ATLAS: 810 mm (31.9") vs. KSSU: 815 mm (32.1")
Trolley Width
ATLAS: 305 mm (12.0") vs. KSSU: 301 mm (11.8")
Trolley Height
ATLAS: 1,030 mm (40.5") vs. KSSU: 1,030 mm (40.5")
Interchangeability
Strictly incompatible — ATLAS boxes and meal trays do not fit KSSU carts
Standard Economy Pitch
30" to 32" (76–81 cm)
Low-Cost Carrier Economy Pitch
28" to 29" (71–74 cm)
Premium Economy Pitch
38" (96.5 cm)
Long-Haul Business Class Pitch
60" to 80" (152–203 cm, Lie-Flat Bed)
Standard Economy Seat Width
17.0" to 18.5" (43.2–47.0 cm)