Modifiers matching deck:

• concrete,
• flat,
• elevated,
• structural,
• rigid,

Simple categories matching elevated:

• surface,
• structure,
• floor,
• vehicle,
• conveyance,
• section,
• furniture,
• item,
• deck,
• area,
• means,
• location,
• feature,
• place,
• object,
• ground,
• platform,
• position,
• height,
• source,
• entity,
• perch,
• level,
• obstacle,
• land,
• point,
• support,
• transducer,
• temperature,
• spot,