Abstract: In one exemplary embodiment, a method of constructing an enclosure using an undercarriage support system comprises: providing the undercarriage support system for supporting the enclosure during one or more stages of construction, the undercarriage support system comprising a plurality of modular enclosure support components and a plurality of motive supports for facilitating movement of the undercarriage support system; interconnecting ends of the modular enclosure support components via respective inter-component end ports; assembling the interconnected modular enclosure support components such that the undercarriage support system exhibits a degree of structural rigidity sufficient to support an entire weight of the enclosure during one or more stages of construction; and executing one or more stages of enclosure construction while at least a portion of the enclosure is supported by the undercarriage support system and while the undercarriage support system and the enclosure supported thereon are moveable