We have a lot of designs of peel and stick mosaic tiles, you can check our shop page peel and stick tiles, we have oblong strip subway tiles, square mosaic tiles, hexagon mosaic tiles, lantern mosaic tiles, the sizes of peel and stick mosaic tile we have is 11.25 x 10inch. 10×10 inch. 11×9.25inch. Please measure the width and height of the area you want to cover,  find the size of the product you want to buy, then you can calculate how many pieces you will need, or you can contact us sales@clevermosaics.com, we will help you and give you some advice.