I go with a 52x80! I love Samplers so I make 15 12" blocks, separate them with 2-1/2" sashing and 4" border. The blocks are three across and five down, and lays over the top of a double bed. (that's how big it is)!!! If I don't make it sampler style, I just add another nine blocks (12") and it comes out 56x80. Easy-Peasy! Edie