I used my curtain rod inside of my apartment because my bedroom window is a sliding glass patio door. It takes up the ENTIRE wall of our bedroom and we have had seven restless months of having the sunlight peek through our window right into our eyes only minutes after we had laid down to sleep. However, even indoors with heavy and long blackout curtains, this rod withstands the weight and is even strong enough for me, being a morning person, to rip opened the blinds and not feel a of tug from the curtains giving. Love this product and I am excited to take this curtain rod with us to our house we are buying later this year for our patio. The pictures I am choosing are in the middle of the night with me ripping the curtains opened. (The curtains I also ordered from Wayfair for only 150 for the size, where other places were charging me almost 350)