Platform Framing

is the Predominate Framing Method for Building Multistory Residential Homes

  Sistemul de constructie Framing Platform
      Today most two or three story homes are constructed using platform framing. Platform framing replaced balloon framing decades ago as the predominate multistory framing technique.
Platform framing is a method of construction used primarily in small structure applications, such as in the construction of houses or small apartment complexes and buildings. The name platform framing is derived from the manner in which the construction is undertaken. The process used is to build upward from the foundation, or platform.
      Platform framing involves the construction of walls and floors by using single story wall studs to form the exterior walls, and attaching floor joists to the top of the walls to create upper floors. The walls are formed by studs that are generally required by building codes to be located every 40.64 cm. The studs are a means of providing enough stability to support another platform on top of the first.

     To more specifically describe the platform framing method it is best to start from the ground up. First, a floor is constructed on top of the basement wall sill plates using floor joists. The floor joists are then sheathed with 22mm tongue and grooved OSB (Oriented Strand Board).
     Single story walls are then built on the first floor using single story wall studs and sheathing. The framed walls are fabricated using vertical wall studs and two horizontal boards that form the sole plate and top plate that tie the vertical wall studs together. 

     The second story floor joists are then attached to the top plates and then sheathed to create the second story floor. This process is repeated for additional floors.
     It is this stacking of floors and single story walls that constitutes platform framing. Platform framing produces a structurally strong home that reduces the risks of fires spreading quickly from the basement to upper levels.  And because the walls are shorter and lighter they are less expensive, and easier and safer to construct and erect.
In most cases, platform framing is the method of choice for residential home building because it allows for the efficient upward construction of the residence. The foundation is set, either through the use of pressure treated lumber to prevent rot or through reinforced concrete slab work. This creates the first platform onto which the residence will be built.

Over 85% of homes in the United States and Canada are built on wooden structure and many of them dating from 1800 and are living today. Western Europe already has a tradition in terms of wooden houses (60% in Scotland are the wooden houses in Sweden, Finland, Norway has a cult houses, wooden structure, and lately in Western Europe - France, Germany, Italy, Spain - these houses are being more searched).

Their style combines simple solutions and modern design, which gives them many advantages over brick houses or wooden. Choosing the design style in the U.S. and Canada is based on a large volume of research on resistance, thermal comfort, health and environmental protection.

These wooden buildings are easy to maintain and ensure all conditions regarding safety and comfort. A wooden house adapts after all architectural styles and design.

Justification would be that:

• these houses are green houses;

• are resistant houses in both time and earthquakes;

• have a perfect insulation

• the construction period of such houses is very short;

• costs are reduced compared to traditional homes.




Only some of the main advantages of a wooden house would be:

1. Seismic resistance - wooden houses to withstand an earthquake of over 8.5 degrees Richter.

2. Reduced energy costs - a very good insulation significantly reduce heating costs in winter or air conditioning in summer.


Wall Type
Wall thickness (cm)
Gas flow (Nmc/ h)
Monthly Gas consumption (Nmc)
Mineral wool plaster + OSB
Solid Wood
Brick Porotherm
Concrete bricks
> 1040


Thermal resistance - R = 4951 m K / W
Heat transfer coefficient - U = 0.202 W / m K;
Average annual consumption 63.7 kWh / sqm.

3. Comfort through insulation - 250 mm wooden house wall is equivalent to 1660mm brick wall.

4. Strength and fire resistance - joints are assembled with special nails with pneumatic grip applied chemical, and the intersection areas are doubled with metal parts SIMPSON class. Through chemical treatment the wood becomes fireproof, having a high resistance to fire between F30 - F60 and can rise to F90 by further treatment of the structure.

5. Ecology - one advantage of wood - does not emit radiation or static electricity and is a good thermal and hydrometric regulator.

6. Duration of construction - from signing the contract, in 30 days parts are ready for shipment; home installation takes about two weeks.

7. Costs - 60-70% from the price of traditional houses.

8. Warranty - Lifetime of a wooden house is unlimited. We issue certificates of guarantee for a period of 10 years for the house structure.


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