There are two basic framing methods: platform and balloon construction, as
shown below. Platform construction is much more common than balloon
framing, though balloon framing was employed in many two-story houses
before 1930.

With platform construction, walls sit on top of sub flooring. Multi-story
houses are built one level at a time with each floor providing a platform for
building the next series of walls.

With balloon framing, studs run full height from mudsill to the top plate, to a
maximum of 20 feet.
This method was popular before the 1930s and is still used on occasion for
stucco and other masonry-walled, two-story houses because such
structures shrink and settle more uniformly than do platform structures.

But balloon framing is more dangerous to erect because of its weight and
height, and the long, straight wall studs required have grown increasingly
expensive and difficult to find.

Engineered wood is made from quick growing, abundant species such as
aspen, fir, pine and poplar that are processed into wood veneers or strands,
coated with adhesive, compressed into large billets, dried,  then sawn into
standard lumber dimensions. Often, the process of engineering the
performance characteristics of the wood includes orienting the veneers or
strands to maximize the member’s strength.

Laminated veneer lumber (LVL), laminated strand lumber (LSL) and parallel
strand lumber (PSL), are some of the types of engineered wood products. In
walls, engineered wood can be used as a replacement for 2 x 4 and 2 x 6
dimensional lumber, installed with the same process, tools, and fasteners.
Because engineered wood products are superior in strength, stability, and
uniformity to standard lumber species, headers and girders can be engineered
for greater clear spans or to carry greater loads.

This means that taller walls can be designed for greater environmental
conditions (like high wind speed or seismic activity) at greater spacing (for
windows and doors). This greater design flexibility, reduced waste (no
culling), and the material’s dimensional stability drive the value decision..
Hand- Cut and other Framing Methods
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LVL and TJI Joist Lumber
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John-Luc Rizzo General Contractor
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