A:Answer For this 50 inch TCL Roku TV, the feet spacing to fit on a stand is 39.6 inches wide and 8.0 inches deep. However, we do not recommend placing over a fireplace. This precaution is given due to the fact that if a fireplace is used it will put off heat, and possibly smoke. This may cause damage to the TV if it is mounted directly above a fireplace. Additionally, in our quick start manual under 'Important Safety Instructions' we caution against installing our products near any heat sources like radiators, stoves, heat registers, etc. In order to maintain safety we caution against mounting at this location. Hope this helps! Thank you, TCL Customer support