How to make a beautiful floor with a few pennies sqft. If you want to try this, patience is the most important thing. First, before you grab, calculates how many coins you need for this. We’re talking about cupper pennies. The cost, including the price of the coins would be from $2.50 to $3.50 for each square foot. A floor literally tiled with thousands of copper pennies… it’s pretty surprising to look down and see them when you walk into The Standard Grill in the Standard Hotel New York, below the Highline. The design was selected by the restaurant’s designers, Robin Standefer and Stephen Alesch of New York-based design firm Roman and Williams.