What sizes does OSB come in?
| Nominal Thickness | Actual Thickness |
| 3 / 8 “ | 11 / 32 “ |
| 1 / 2 “ | 15 / 32 “ |
| 5 / 8 “ | 19 / 32 “ |
| 3 / 4 “ | 23 / 32 “ |
How big is a 4x8 sheet of OSB?
Divide by the total square footage by the square footage of a sheet of plywood to find the number of sheets required to cover the space. A 4×8 sheet of plywood is 32 ft2. For example, if the area to be covered in plywood is 800 ft2 then 25 sheets of plywood will be needed to cover it. how much does OSB lift weigh?
What is the weight of a 4x8 OSB board?
The weight of a 4-ft x 8-ft OSB sheet ranges from about 26.5 lbs (1/4″ thick) to almost 120 lbs (1-1/8″ thick). A metric 2440mm by 1220mm OSB sheet weighs from around 11.5 kg (6mm thick) to 72.5 kg (38mm thick). OSB is approximately 31% heavier than softwood plywood but about 9% lighter than MDF.
How thick should OSB be for garage walls?
- Standard OSB: Standard OSB has no special features and are perfect for floors, walls, or roofs.
- Zip OSB: A waterproof panel made for the outer shearing of roofs and walls.
- Subflooring OSB: A smooth and robust board, usually with tongue and groove edges for easy connection.
Which OSB board thicknesses are suitable for what?
Oriented Strand Board (OSB)
- Common OSB Applications. APA-trademarked OSB is suitable for a variety of end uses including subflooring, single-layer flooring, wall and roof sheathing, sheathing ceiling/deck, structural insulated panels, webs for wood I-joists, ...
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What are the thicknesses of OSB?
Common thicknesses for flooring panels are: 19/32 inch (15.1 mm), 5/8 inch (15.9 mm), 23/32 inch (18.2 mm), 3/4 inch (19.0 mm), 7/8 inch (22.2 mm), 1 inch (25.4 mm), and 1-1/8 inches (28.6 mm). OSB is also widely used in industrial applications.
Which is stronger plywood or OSB?
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.
What is the actual thickness of 1/2 OSB?
OSB Sheathing (Common: 15/32 in. x 4 ft. x 8 ft.; Actual: 0.451 in.
Do you nail or screw OSB board?
A hammer and 8d nails are standard for installing OSB, but you can speed up the installation by using a nail gun. The caveat when using a nail gun is to set the depth of the nail so the head just dimples the surface of the OSB.
What size OSB is used for roofing?
7/16-inchStandard types of wood designed for roof sheathing are oriented strand board, known as OSB, and plywood, the most popular being OSB. Sheets of 7/16-inch thick, without edge support, can be used in an area where the snow load is 30 pounds per square foot.
What is 9mm OSB used for?
OSB Board | 9mm OSB can be used for both flat and pitched roofing projects and works well for sheathing in walls. The BBA classification permits use in a wide range of applications such as roofing and flooring in both commercial and domestic situations.
What is the price of a 4x8 sheet of OSB?
OSB board costs $32–$77 per 4-by-8-foot sheet This is where OSB comes in. Oriented Strand Board (OSB) is a construction material commonly used for wall sheathing, floor underlayment, roofing, and siding. The average cost of OSB is $32 to $77 per 4-by-8-foot sheet, depending on the type and thickness.
How much is a sheet of OSB right now?
OSB has traditionally been a more affordable alternative to plywood, largely due to more exacting manufacturing terms for plywood and its typically heavier thickness. As of 2018, construction-grade plywood in a 4'x8' sheet cost approximately $10 while a sheet of OSB at the same size would run closer to $6.
How much does a sheet of half inch OSB cost?
1/2 x 4 x 8 OSB at MenardsEveryday Low Price$30.9911% Mail-In Rebate Good Through 6/26/22$3.41
Should OSB be installed vertically or horizontally?
If the height of a wall is less than 8-feet, install the plywood (or OSB) vertically. If the height of a wall is greater then 8-feet, install the plywood (or OSB) horizontally.
Can I use OSB for garage walls?
OSB is a effective sheathing material for garage walls. It's strong and durable, and it can be used as a base for nailing or stapling insulation to garage walls. OSB can be left uncovered for utilitarian bare-wall constructions, but can be primed and painted.
What do the lines on OSB mean?
Some panels have a textured surface, which makes them less slippery when used for roof sheathing. OSB panels often have lines at 16- and 24-in. intervals so you know where underlying studs, rafters and joists are for nailing. In our area, 1/2-in.
History of OSB
Oriented strand boards were first developed in the 1950s by researchers at Georgia-Pacific.
What Are Some Other Names For OSB?
Oriented strand board, bond beam sheathing, and structural-use panel (SSP) are all other names for this material.
How OSB Is Made In Easy to Follow Steps
The manufacturing process of oriented strand boards is similar to making paper because both are created by gluing together layers of fibers.
What size does OSB come in?
Oriented strand boards come in several different sizes, the most common being 4 feet by 8 feet.
Mechanical and Physical Properties of OSB
Oriented strand board has a density that is similar to plywood and can be made into several different thicknesses.
Uses of OSB
Oriented strand board is used as sheathing on roofs or walls, subflooring for homes and commercial buildings, and the base layer to build furniture with.
Types Of OSB
There are three different types of oriented strand boards: type I, II, and III.
What is LP sheathing?
LP® LongLength™ and LongLength XL™ OSB Sheathing panels are engineered to make building for tall wall applications easier. LP LongLength sheathing can lower building costs, increase wall strength, and help meet code requirements in high wind and seismic zones.
How long is a pre cut panel?
Panels are pre-cut 1-1/8˝ longer than LongLength to fully overlap the top plate in tall wall applications.
What is OSB wood?
OSB (Oriented Strand Board) is an engineered wood-based panel consisting of strands of wood which are bonded together with a synthetic resin; the strands are pressed together in layers. In the outer layers strands are generally oriented longitudinally in line with the panel length, whereas in the middle layers strands generally lie in ...
What is the color of OSB?
OSB varies in colour from a light straw colour to a medium brown depending on wood species used, resin system adopted and pressing conditions employed. It contains no knotholes, core voids or points of weakness.
How does OSB change?
Like other wood-based panel products, OSB is hygroscopic and its dimensions change in response to a change in humidity. A 1% change in moisture content increases or decreases the length, width and thickness of the different grades of OSB by the amounts set out in the table below.
What are the threshold values for OSB grades?
The values are 95 percentiles (5 percentile values in the case of swelling in thickness) and are characterised by a moisture content in the material corresponding to a relative humidity of 65% and a temperature of 20°C. This implies that these specified mechanical properties have to be controlled according to statistical principles and that 95% of the test values on individual samples have to exceed (or remain below in the case of swelling in thickness) the respective threshold value requirement in EN 300.
What is the thermal conductivity of OSB?
The thermal conductivity (l ) of OSB is 0.13 W/m.K for a mean density of 650 kg/m_.
What is the water vapour resistance factor for OSB?
The value of the water vapour resistance factor (m ) for OSB having a density of 650 kg/m_, can be taken as 30 using the ‘wet cup’ method and 50 when the ‘dry cup’ procedure is employed (EN 12524).
How much does a 2400 x 1200 x 12mm panel weigh?
Typical densities are 600-680kg/m_. Thus, for example, a 2400 x 1200 x 12mm panel will weigh approximately 20 kg.
What is an OSB board?
By Kelvin O'Donahue. Oriented Strand Board (OSB) is an engineered wood structural panel created of strands of wood about 1 inch wide and up to 4 feet long. The strands are glued together under heat and pressure to make panels of uniform thickness.
What is the minimum thickness of OSB sheathing?
When applying OSB sheathing to shear walls in a zone of seismic risk, the minimum recommended thickness is 15/32 inch.
Can OSB be used in place of plywood?
In some locations, OSB may be used in place of plywood for wall sheathing as long as the panel dimensions are those specified by the architect. Where plywood is specified in the plans, though, California code prohibits substitution of OSB.
How many inches between OSB sheets?
Half-inch OSB is suitable for rafter spacings up to 24 inches, whether or not the edges are supported. Sheets must have a 1/8-inch expansion gap between them and should be secured to the rafters with 8d nails. The nails should be spaced 6 inches around the edges of a sheet and 12 inches in the middle.
What is OSB in a shed?
If you need to utilise Oriented Strand Board (OSB) to sheathe your shed’s walls, then you would need to construct those walls like the walls of a house. This means you would need to use a moisture-resistant barrier over the OSB and then cover it with siding.
What is roof sheathing made of?
Usually, roof sheathing is made of wood. It can come in the form of plywood or oriented strand board (OSB). OSB is less expensive, but lighter and far more fragile, which is why many roofers rely on plywood.
What is the difference between OSB 2 and OSB 3?
As from the mechanical properties point of view (MOR, MOE, internal bond) there is no difference between OSB 2 and OSB 3, it is the swelling rate that makes the difference between the panels and limits the domain of use for each type of board: Internal use in dry conditions (RH ≤ 65%) for OSB 2 → service class 1.
How thick should OSB be for a roof?
If you are using OSB for your roof deck, then ⅝” is the recommended thickness. For plywood, which is slightly stronger than strand board, ½” thick is appropriate.
Is OSB wood water resistant?
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.
Does OSB degrade faster than plywood?
… OSB takes longer than plywood to get saturated, but also takes much longer to dry out. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks.