While timber prices rose and material shortages increased, builder masters had to invent less material consuming systems than log houses. This is why the timber frame appeared allowing to save the quantity of timber and to use less "noble" materials for stuffing between timber frame members. Nineteenth century brought another step ahead for the timber frame. The Pioneers of the Far West reduced structural material usage to the necessary minimum giving the "two-by-four" a basic structural size standard for decades. The timber frame sytem uses minimum structural timber but it requires to follow very strict rules for elements spacing, members connections, accurate workmanship  etc. Presently, timber frame system is developed with a usage of engineered steel connecting plates and angles, modern types of nails and screws, glue-laminated timber elements allowing for much larger structural spans. It is very frequently used as a supplementary part of steel frame structures. Timber frame is lightweight, energy saving, sustainable, easy and fast to assemble system of erecting homes and other structures. At present, this technology dominates on the construction market for small buildings in the USA, Canada and the whole Scandinavia.