alant 4 Report post Posted May 28, 2014 Hi, my renovation contractor suggest using L-box at the ceiling perimeter/ edge with LED downlight instead of cornices.As the L-box width is 1 feet or 1.5 feet width, I afraid that it may make the overall ceiling look lower?Any comment from owner with L-box ceiling?Thanks. 2 Share this post Link to post Share on other sites