A log house moulder is a machine to prepare logs to be suitable for building a log home

Log home

A log home is structurally identical to a log cabin...

. In general, the logs are first sawn to a square beam, then the moulder makes the groove. Often fitted to a portable sawmill

Portable sawmill

Portable sawmills became popular in the United States starting in the 1970s, when the 1973 energy crisis and the back to the land movement had led to renewed interest in small woodlots and in self-sufficiency.- History :...

 that enables direct profiling of round or squared logs. The log house moulder is usually powered by electricity

Electricity

Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

, but for portable sawmills they are sometimes using a chainsaw

Chainsaw

A chainsaw is a portable mechanical saw, powered by electricity, compressed air, hydraulic power, or most commonly a two-stroke engine...

 as power head. One of the more common, especially in Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

, is the
Logosol log house moulder.

Other type of log house moulder is a log trough-pass machine. Through-pass log home moulders are highly productive and mighty machines able to turn truck load of logs into house logs during a work shift. Barked or debarked green or dry logs are fed into such machine one after other on one side and the machine processes logs, turning them into profiled roundish or squarish house logs, taken from outfeed of the machine. Such log home milling machine can shape logs into different profiles: Swedish cope, Tongue&groove, D-log, bevel-edged logs, etc. One of moulders of such type is Woodlandia' Rotary Log Moulders (USA, Canada, Russia).