I posted these in another thread earlier. They are more appropriate here. the graphene sheets should make for light-weight sheets of material, if one had, for example, a nano-tube woven cloth laminated between graphene sheets. high-rises should be able to go several miles high if they only weigh 1/10th of conventional construction. girders would be of nanotube cables encased in aerogel-like material. super tensile strength and compression strength, and ultra-light-weight. flooring would be of criss-crossed nanotube cables encased in aerogel; instead of conventional flooring of criss-crossed steel cable encased in concrete. sheetrock would be of aerogel and weigh only a few pounds for 4'X8' sheets, instead of heavy gypsum board as conventioally used. lots of opportunity here, for the go-getter.