Hi D, we were the architectural designers on this handcrafted log cabin. Our clients select their own finishes, so unfortunately, we don't have that exact information for you. If you are able to show this picture to a local flooring company they should be able to help you match the look & style.
HI D Wheat, The floor is rough sawn using a circular saw, and based on the high degree of color variance from one board to the next it could be a reclaimed product or it could be a new product made to look old. There are many manufacturers who do a similar look and finish. You need to determine if your home and practicality needs demand a site finished floor (which is typically more $ but has other benefits) or whether a pre-finished product will be more suitable. Ask around in your local area for referrals to reputable flooring suppliers.
M.T.N Design
Studio Ridge Residential