Are Royalston Oak houses modular, prefabricated or kits?Our timber frames could be considered kits, since all the timbers for a frame are cut and finished in our shop and then assembled on your foundation. We do not include windows, doors, lumber, siding, etc. because these items are readily available at competitive prices in your area. This saves you money in handling and transportation costs and also allows you greater flexibility when making decisions about quality and design.