How much wastage is advised with the particular "floor covering"? Laminate flooring can generate 15% wastage as can large ceramic tiles. Mosaic tiles, whilst being less wasteful do tend to waste a lot of time. Is the floor covering going to be "thick"? If so it could well impede easy opening of the Oven door or fridge/freezer. Is the flooring waterproof? If not it may not be the best resolution for a sink area and is therefor probably best left out of your order altogether. Now that looks like a long but narrow hall. You really need to consider the aesthetics when flooring such a narrow but long space or you may find yourselves somewhat disconcerted on entry after a night out that was "more than expected" The wrong surface may induce a condition that requires a vomit friendly covering, which again is best calculated after calculating the likely amount of vomit. Do not under any circumstance fit carpet tiles in the misguided belief that an unforeseen accident on one of them is easily remedied by simple replacement. Why does Carl feel that it is necessary to replace the existing flooring anyway? Is he/she thinking of selling on pdq?