Why Is OSB Cheaper Than Plywood?

Which is cheaper OSB or plywood?

OSB is less expensive than plywood.

To build a typical 2,400-square foot home, OSB may cost $700 less than plywood.

OSB is considered by many to be a “green” building material because it can be made from smaller-diameter trees, such as poplars, that are often farmed..

Why is lumber so expensive 2020?

Why Strong Demand and Tight Supply Have Caused Lumber Prices to Soar. … New numbers from the National Association of Home Builders shows that since mid-April of 2020, lumber prices have risen by 130%, and those increased costs have increased the cost of single-family homes more than $16,000 on average.

Does plywood warp in rain?

Even though plywood will warp, it doesn’t do so as badly as dimensional lumber; which is one of the reasons why plywood is so popular. However, as with all other wood products, plywood should be protected from moisture and especially water, as it will soak that water up.

Which side of OSB should you paint?

The nail lines on the screened side are paint but the grade stamp on the smoother side is ink and may be more difficult to cover. Ask your paint dealer to suggest a sealer as a prime coat. In that application it would be a good idea to paint both sides and all edges before installing the panels.

Which side of OSB goes down?

Answer. OSB roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up. When the grade stamp is covered by roofing, the building inspector will not be able to confirm that the correct OSB roofing panel was used.

Why is lumber so expensive now?

Builders currently have to search harder and pay more to get the materials they need. In many cases, lumber orders are weeks out. The North American sawmill supply chain is under a tremendous amount of pressure to keep up with demand, and that has pushed the price of lumber to record levels.

Why does OSB say this side down?

“This Side Down” is stamped there for a definite SAFETY reason. The stamp is on the smooth side, which will mean the rough side is up on roof rafters or trusses.

Should OSB be painted?

The Engineered Wood Association (known as APA) notes that Exposure 1 OSB can be painted. The APA’s main reservation is that OSB shipped with a thin wax coating would inhibit painting. … They also recommend that you avoid exposing any of OSB’s edges to moisture, as this may allow the OSB to swell and crack.

Is OSB board better than plywood?

Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists. However, nail-holding ability controls performance in shear wall applications.

Why is OSB so expensive 2020?

Oriented Strand Board, or OSB, has long been used as a low-cost alternative to plywood, but the product now fetches a higher price as increased demand and tight supplies lead to delivery delays and elevated construction costs in the U.S. and Canada.

Will OSB prices go down?

But last week, the benchmark OSB price dropped by $100 per 1,000 square feet, or 23.5 percent, to $325 per 1,000 square feet. … Industry observers agreed that last week’s price tumble indicates a seasonal slowdown in home construction–and likewise demand for OSB–that will hold through the spring.

Does rain hurt plywood?

But, if it gets wet for a long period of time it can swell and lose shape, and, eventually, lead to the layers of wood splitting apart. This often happens when plywood is stored outside for short periods of time before a project begins. … If the edges are wet and covered then they might struggle to dry.

Can OSB plywood get wet?

Your framing lumber and the oriented strand board (OSB) are going to be fine. The glues used to make OSB are water-resistant because the manufacturers know that virtually no one can build a home that won’t get wet before the roof and siding is applied. … The OSB floors should be swept clean each day after work concludes.

How much does a sheet of OSB cost?

A 4×8-foot sheet of construction-grade plywood costs roughly $10 a sheet, while the same size sheet of OSB costs only $6 a sheet. Both cost about the same to install, $70 an hour for a carpenter. Installing either sheathing over a 500 square foot area would cost roughly $160 in material for plywood and $100 for OSB.

Is OSB more water resistant than plywood?

OSB takes longer to get wet than plywood but also takes longer to dry out. … Manufacturers insist that OSB’s moisture problems have been corrected, thanks to the development of water-resistant edge seals. But of course that edge seal is lost when panels get cut on site, as they often do.