2026 Grand Design Lineage 25TK, Introducing the new Grand Design Lineage 25TK Class C Motorhome 2026 Model Experience a new level of innovation and luxury with the 2025 Lineage 25TK, a groundbreaking Class C motorhome from Grand Design RV designed for travelers who want premium comfort in a compact, easy-to-drive coach. Built on the Mercedes-Benz Sprinter 4500 chassis, this sophisticated motorhome delivers a smooth, stable ride while surrounding you with modern design and smart engineering. At just over 25 feet long, the Lineage 25TK packs impressive features into a manageable size, including a versatile twin-to-king rear sleeping system, a spacious living area, and high-end finishes throughout. With advanced lithium power, solar capability, and thoughtful storage solutions, this motorhome is ready for extended adventures on or off the grid.
Floorplan and Design
The 25TK floorplan in the Lineage Series by Grand Design RV is thoughtfully designed to maximize comfort, flexibility, and residential-style living in a compact Class C motorhome. At the rear, the versatile twin beds easily convert into a spacious king-size bed, giving travelers the option of separate sleeping areas or a larger shared bed while still maintaining easy nighttime access and additional storage underneath. The mid-coach bathroom offers a roomy shower, toilet, and sink with smart separation from the main living space, creating a more private and functional layout for daily use. Just forward, the well-equipped galley kitchen features solid-surface countertops, a cooktop, microwave, refrigerator, and generous cabinetry, making meal preparation simple whether you're on a weekend getaway or a longer trip. Up front, the comfortable dinette and swivel cab seats create a flexible living and dining space that s perfect for relaxing, working remotely, or enjoying meals. Combined with smart storage throughout and a bright, open interior design, the 25TK floorplan delivers an ideal balance of sleeping comfort, living space, and everyday convenience for life on the road.