New Construction Windows. Miller's Surplus Home Center carries single hung windows with grids and low "E" glass. A half screen is included on all new construction windows. Our Slider windows come with Low "E" glass. Their are no grids with our slider windows. Our slider windows are single hung and also come with a half screen. For more details and information simply come to one of our two great locations or call our corporate office at (570) 345-8982. 23 1/2" Rough Opening New Construction Windows 27 1/2" x 35 1/2" New Construction Window 27 1/2" Rough Opening New Construction Windows 29 1/2" x 47 1/2" New Construction Window 29 1/2" x 47 1/2" New Construction Window 31 1/2" x 35 1/2" New Construction Window 31 1/2" x 47 1/2" New Construction Window 31 1/2" x 53 1/2" New Construction Window 35 1/2" x 35 1/2" New Construction Window 35 1/2" x 47 1/2" New Construction Window 35 1/2" x 53 1/2" New Construction Window 35 1/2" x 59 1/2" New Construction Window 35 1/2" x 35 1/2" Slider with Low E Glass - No Grids 47 1/2" x 35 1/2" Slider with Low E Glass - No Grids 47 1/2" x 47 1/2" Slider with Low E Glass - No Grids