3 BHK House Basement Floor Plan layout shows 20x19 Meter In Size.3 BHK House Basement Floor Plan Layout includes column placement, gym, study room, and staircase is available. centerline plan is also available in this file. 3 BHK House Plan dimensions are in a meter. Thank you for downloading the AutoCAD drawing file and other CAD program files from our website. Visit CADBULL.COM Site.