What Characterizes American and Scandinavian Carcass House Building Technology?


Different experience from the other countries in case of the building of wooden carcass house or wooden panel house is mentioned often. USA, Canada, and Scandinavian countries names are mentioned often. What is so special about the experience of these countries and why should we keep up with them, read in this article. As far as origins of  wooden house and wooden carcass house origins are to be found in the North America, then in this

Private house project “Darius” // Roominess: 220 m2 // Visualization: northouse.lv

region also has accumulated the greatest experience in the construction of this type of wooden houses, the history of construction dating back hundreds of years ago and accumulating solid knowledge in the field. Proportionally persuasive amount – panel houses, wooden carcass houses, wooden prefabricated houses, modular houses of wooden carcass panel houses in the North America and Scandinavia are built according to the wooden carcass technology methods. Thereby, in these regions there is a universal scheme, which provides:

  1. Constructively safe wooden carcass resolution
  2. Optimization of the work during the building process
  3. Optimal building costs
  4. Good energy efficiency characteristics

It is impossible to set, which is right or wrong building of wooden prefabricated house, modular house or wooden carcass panel house, but the “right” one is American, Canadian and Scandinavian experience. The “wrong” one wooden carcass building usually includes simple case complexity, huge amount of the use of materials, where it was possible to use less or last construction works were made complex. Thereby the “wrong” building of the wooden house do not gives any advantage in comparison to the “right”.


It is made simple, strong, functional, trustworthy, easily mounted and safe. A wooden carcass is made from the dry lumber only, dry planed boards without the use of beams. If only it doesn’t have any specific use.

  • Corners – There are various angular shaping schemes, but completely eliminating the use of brushes in scaffolds.
  • Connected or reinforced window sill doors and windows.
  • Wall amplifier above windows or doors, horizontally fixed board.
  • The beam is not used even at the height of the floor, instead of just a double plank bar.
  • Double top floor fixture – the bottom and the top row overlap key points – in the corners, walls fragments, adjacent wooden wood frame partition walls at the exterior walls.

Schemes of building corners:

  • “California” corner – the most often used type – Insert one more board or OSB board onto one of the walls. When on the inner side is making a shelf, it becomes as a decoration and wall layer protection.
  • “Closed” corner – also widely used type. Its basic meaning is to make extra scaffolds to make inside the wooden carcass a shelf. In terms of mounting, this is a better option than 1, but the disadvantage is that it is possible to reinforce this frame of wood only from the outside, so it should be done before finishing the house.
  • “Scandinavian” warm corner – very rare variation, does not uses in America. But the warmest corner – it is possible to warmth it fully.

Why does using of beams in wooden houses building is not effective?

All the three types of corners it is possible to insulate them, on the contrary, beam corner will be the coldest wooden carcass, modular or wooden panel house corner and will appear the loss of the heat. Another minus of the beam corner (panel house) is that it is impossible to build shelves to fix the inner decoration.

Why does using of beams in wooden houses building is not effective?

All the three types of corners it is possible to insulate them, on the contrary, beam corner will be the coldest wooden carcass, modular or wooden panel house corner and will appear the loss of the heat. Another minus of the beam corner (panel house) is that it is impossible to build shelves to fix the inner decoration.

Window and door boxes in the wooden carcass house

In making boxes the most important is (in the carcass house) the amplifier above it. It usually has to be loaded – the second-floor gear or rack system, although it is weakened in the area of the heel. To strengthen it, the upper part of the frame forms a local anchorage. It turns out (a folding house) as a horizontal board, which is affixed above the boxes with ribs. The size of the amplifier depends on the amount of load bearing capacity – the larger the box, the higher the load, the stronger the attachment. In turn, if the window in a wooden house, wooden panel house of the wooden prefabricated house is to narrow and it has built in a one-floor house, the load is not big and it is possible to do not have an amplifier. In American wooden carcass houses, wooden houses, modular houses, wooden carcass panel houses of wooden prefabricated houses technology precondition is – to have amplifiers on each box to have 100% protected result.

 The double amplifier of the upper floor


For wooden panel house or wooden carcass house double amplifier provides the strength of the upper wall, so that it does not lean from the load bearing. In turn, paying particular attention to the top-level board overlays.

1) Corner overlay – bind together two perpendicular wooden carcass walls.

2) Center overlay – bind together two pieces of a single wooden carcass wall.

3) Bonding fastener – binds together the partition wall with the outer wall.

Wood drain in the carcass house

It is a diagonal wooden carcass house or wooden panel house wall element, which spatially provides the strength of the lateral planes, making in the wall the most durable – triangle construction.

  1. The most durable triangle construction in the wooden carcass house or wooden panel house appears in 45-60 grades angle.                                                                           2. The drain connects scaffold’s upper and lower part, making wooden carcass or wooden panel house construction.                                                                                      3. the incinerator is cut in each scaffold with which it is encountered, in order to minimize (panel house) interference with insulation works and to better link the construction of the wooden house.                                                                                                                                                                                                                                                    4. Each point of contact between the flap and the scaffold must have at least two connecting points.

Of course, there are different wooden carcass or wooden panel house drain mounting variations, where the drain is not mounted into scaffolds or is not embedded fully, but it is preferable to use a checked standard, not in a hurry (individual house) emit significant (maybe, visually not so important) steps, which provide wooden prefabricated house, modular house or wooden carcass panel house construction stability. 15-minute savings on a piece of the building can be invoked during the later use of a wooden house.


Scandinavian panel house, wooden carcass house, prefabricated house, carcass house, wooden house building principal from the American differs with a diversity. If in America everything is standardized, with the small number of variations, then in Scandinavia there are both American and hybrids in the building process of wooden houses. Essentially, Scandinavian wooden panel or wooden carcass buildings are modernized American versions. Typical Scandinavian wooden carcass house construction is like on the picture:

The most significant differences:

  • On the top of the wall there is one layer of the plank linking;
  • A drain, which is embedded through all the wooden carcass house width and high;
  • Window and door boxes are with one anchorage.

Actually, the main difference is Scandinavian “spraislis” – the drain, which includes both American wooden house boxes anchorage and double wooden frame linking, becoming as a strong element.

What are the advantages of panel house, modular house, wooden carcass, wooden house or prefabricated house in comparison to American carcass? Scandinavian wooden carcass or wooden panel house construction pays attention to all the types of cold bridges, and they are – all interconnected boards – the upper framing of the timber frame, the attachment of window and door frames, and so on joints that can create invisible breaks over time, especially when two or more boards are interconnected.

Scandinavian green thinking and perceptions of life tend to be more energy efficient, moreover, in a climate where the heating of wooden carcass houses is enormous and heating costs are higher. Although in Scandinavia energy efficiency is half that in Latvia, taking care not only for electricity consumption but also for providing wood panel houses with proper insulation during construction. Latvia has begun to support the energy efficiency of apartment buildings from the state, and hope that private houses will have funds available in the near future that can financially support the improvement of energy efficiency of houses.


In general, the Scandinavian wood carcass is more complicated in design and workflow, but it is reflected in the framework’s above-mentioned advantages in design quality.

Take a look at how an 18-story wooden building is being built – the British Columbia University in Canada, where the 17-storeyed buildings of the University building are made of wooden construction:

The company “North House” offers an ecological wooden frame house building – living, private, summer houses, bathhouses etc. One of the advantages of the company is well-knowing technologies of building ecological wooden frame houses and an ability to offer an individual resolution for every client. We offer two ways of resolution: typical project and individual project wooden frame houses. Look, maybe here you will find the house of your dream and we will help you!