Not just for realism sake but for trading sake different items need different volumes. Large expensive stuff like science equipment are heavy which is fine but light inexpensive items like tablets should way much less. One reason being is that with smaller items you can't make a profit because they are much too heavy to carry a meaningful amount. You can get about a ~30 credit margin with tablets but they are 10 volume so it's not even worth trading with them. Thank you for my TED talk <3 Here's my proposals { Item Id: 3049, Name: RawDiamond, Ref: TradingGoodsTemplate Mass: 1.0, type: float, display: true, formatter: Kilogram Volume: 3.0, type: float, display: true, formatter: Liter } { Item Id: 3050, Name: LuxuryGoods, Ref: TradingGoodsTemplate Mass: 5.0, type: float, display: true, formatter: Kilogram Volume: 4.0, type: float, display: true, formatter: Liter } { Item Id: 3051, Name: Fertilizer, Ref: TradingGoodsTemplate Mass: 3.0, type: float, display: true, formatter: Kilogram Volume: 1.0, type: float, display: true, formatter: Liter } { Item Id: 3052, Name: Liquors, Ref: TradingGoodsTemplate { ROF: 1, type: float AddHealth: -5, display: HealthValue AddStamina: -20, display: StaminaValue AddFood: -2, display: FoodValue AddOxygen: 0 Mass: 2.5, type: float, display: true, formatter: Kilogram Volume: 2, type: float, display: true, formatter: Liter } } { Item Id: 3053, Name: Narcotics, Ref: TradingGoodsTemplate Mass: 2.5, type: float, display: true, formatter: Kilogram Volume: 7.0, type: float, display: true, formatter: Liter } { Item Id: 3054, Name: Robotics, Ref: TradingGoodsTemplate Mass: 10.0, type: float, display: true, formatter: Kilogram Volume: 15.0, type: float, display: true, formatter: Liter } { Item Id: 3055, Name: Optronics, Ref: TradingGoodsTemplate Mass: 3.0, type: float, display: true, formatter: Kilogram Volume: 3.0, type: float, display: true, formatter: Liter } { Item Id: 3056, Name: Leather, Ref: TradingGoodsTemplate Mass: 2.5, type: float, display: true, formatter: Kilogram Volume: 2.5, type: float, display: true, formatter: Liter } { Item Id: 3057, Name: ToxicWaste, Ref: TradingGoodsTemplate } { Item Id: 3058, Name: AlienOrganism, Ref: TradingGoodsTemplate Mass: 2.0, type: float, display: true, formatter: Kilogram Volume: 15.0, type: float, display: true, formatter: Liter } { Item Id: 3059, Name: AncientRelics, Ref: TradingGoodsTemplate Mass: 30.0, type: float, display: true, formatter: Kilogram Volume: 35.0, type: float, display: true, formatter: Liter } { Item Id: 3060, Name: Coolant, Ref: TradingGoodsTemplate Mass: 3.0, type: float, display: true, formatter: Kilogram Volume: 2.5, type: float, display: true, formatter: Liter } { Item Id: 3061, Name: Chemicals, Ref: TradingGoodsTemplate Mass: 1.0, type: float, display: true, formatter: Kilogram Volume: 1.0, type: float, display: true, formatter: Liter } { Item Id: 3062, Name: Filters, Ref: TradingGoodsTemplate Mass: 1.0, type: float, display: true, formatter: Kilogram Volume: 1.0, type: float, display: true, formatter: Liter } { Item Id: 3063, Name: SpareParts, Ref: TradingGoodsTemplate Mass: 2.0, type: float, display: true, formatter: Kilogram Volume: 2.5, type: float, display: true, formatter: Liter } { Item Id: 3064, Name: ScienceEquipment, Ref: TradingGoodsTemplate } { Item Id: 3065, Name: MutatedSubstance, Ref: TradingGoodsTemplate Mass: 5.0, type: float, display: true, formatter: Kilogram Volume: 12.0, type: float, display: true, formatter: Liter } { Item Id: 3066, Name: TechnicalArtifact, Ref: TradingGoodsTemplate Mass: 15.0, type: float, display: true, formatter: Kilogram Volume: 30.0, type: float, display: true, formatter: Liter } { Item Id: 3067, Name: ToxicLiquid, Ref: TradingGoodsTemplate } { Item Id: 3068, Name: AlphaVirus, Ref: TradingGoodsTemplate Mass: 1.0, type: float, display: true, formatter: Kilogram Volume: 15.0, type: float, display: true, formatter: Liter } { Item Id: 3069, Name: Tablet, Ref: TradingGoodsTemplate Mass: 0.5, type: float, display: true, formatter: Kilogram Volume: 1.0, type: float, display: true, formatter: Liter }