SM Ponton is a Slovakian based designer and producer of modular, floating pontoon bases for houseboats and floating homes. Constructed with a reinforced concrete structure that ensures maintenance-free durability and a Styrofoam core that makes the vessels unsinkable, the modules are connected together to form a rigid pontoon platform using locks at the mooring place. Architects and designers can then confidently build their homes on tip of this platform.  Photo 5 of 7 in 6 Modular Houseboat and Floating Home Manufacturers Around the World