white reflection floors - do I make an actual floor in solidworks?

hi, hopefully someone can answer this question, if i want a pure white reflection floor, do i make an actual floor in solidworks and assign a glossy white plastic as material and render in photoview in like the most whitest environment?  

or can i skip that and rendering in photoview and check on reflection box and it can come out like that?  

SolidworksPhotoview 360