Installing a larger patio door
Well sir/ma'am, I see what you are trying to do. With the style of your home and the hardie plank siding, if you were my potential customer I would highly recommend placing a 5' french door leading onto your well crafted stylish deck. As far as cost wise, a 5' french door will not be that much more then a 6' sliding door, and factoring in the new header, sheetrock, trim, shoring, and the many other factors involved in making a header 6'' larger, it would only make sense from a labor and cost factor to go ahead with a 5' slider/french door vs a 6' one. However, if your heart is set on a 6' slider it can most definitely can be achieved.