This piece of cat furniture is superb!  It is heavy, sturdy & well built.  We have 4 cat-kids ranging in weight from 8lbs to 26-27lbs.  Three are over 11yrs old & that's why I bought this piece, for easy access that allows them to climb safely &  look out the window.  We have 11 pieces of cat furniture & 2 ramps positioned through out the house & they use everyone of them.  I highly recommend this piece.  Even the two heaviest (Maine Coons) don't mind that they hang over the top deck & I got this piece half-off at $50 including free shipping.  I will buy from Wayfair again!