In North America, the lumber industry defines standard wood post sizes as 4×4 or 6×6. The outside dimensions of the standard 4×4 measure 3-1/2″ x 3-1/2″, and the outside dimensions of the standard 6×6 measure 5-1/2″ x 5-1/2″. Likewise, how wide is a 2 by 4?
Why is a 4x4 not 4 inches?
“Dimensional” lumber is the general name for framing lumber. … Now, most timber is milled and planed to give it a little more of a finished look, and a little more of a consistent size and profile. Because of this extra milling, a 2×4 no longer measures a full 2 inches by four inches.
What is the actual size of a pressure treated 4x4?
x 4 in. x 8 ft.; Actual: 3.56 in. x 3.56 in.
What is thickness of 4x4?
According to the NHLA rules, 13/16″ is the standard acceptable thickness of surfaced 4/4 lumber.How thick is a 4x4 piece of wood?
So, a “4/4” board is four quarters, or 1 inch thick, an “8/4” board is eight quarters, or 2 inches thick, a “10/4” board is ten quarters, or 2.5 inches thick, etc.
What is nominal 4x4?
Rather, the retailers say, those are “nominal” designations accepted in government-approved industry standards, which also specify actual minimum dimensions — 1½ inches by 3½ inches for a 2×4, for example, and 3½ inches by 3½ inches for a 4×4.
Why are wood dimensions wrong?
The “nominal” cross-section dimensions of a piece of lumber, such as 2 X 4 or 1 X 6, are always somewhat larger than the actual, or dressed, dimensions. The reason is that dressed lumber has been surfaced or planed smooth on four sides (called S4S). The nominal measurement is made before the lumber is surfaced.
Is a 4x4 post really 4x4?
The lumber industry defines standard wood post sizes as 4×4 or 6×6. The outside dimensions of the standard 4×4 measure 3-1/2″ x 3-1/2″, and the outside dimensions of the standard 6×6 measure 5-1/2″ x 5-1/2″.What are standard wood sizes?
Nominal SizeActual Size2×121-1/2″ × 11-1/4″4×43-1/2″ × 3-1/2″4×63-1/2″ × 5-1/2″6×65-1/2″ × 5-1/2″
What size fence posts do I need?Decide on the height of your fence and you can work out the length of the posts to buy. If you’re setting wooden or concrete posts in concrete you’ll need 8ft (2.4m) posts for a 6ft (1.828m) fence – i.e. your posts are 2ft (0.6m) longer than the fence height.
Article first time published onWhat size are deck posts?
Deck Post Sizing Deck posts are usually 4 feet x 4 inches, 6 feet x 6 inches or 8 feet x 8 inches as determined to be appropriate for the expected load. After determining the width, the maximum deck post height must also be determined. This also depends on the type of wood used.
What is the actual width of a 4x4?
Nominal SizeActual Size2 x 101 1/2 x 9 1/4 inches (38 x 235 mm)2 x 121 1/2 x 11 1/4 inches (38 x 286 mm)4 x 43 1/2 x 3 1/2 inches (89 x 89 mm)4 x 63 1/2 x 5 1/2 inches (89 x 140 mm)
What is the actual thickness of 1 inch hardwood?
Nominal SizeRough SizeActual Size: Surfaced 2 Sides–5/8 inch7/16 inch (11 mm)–3/4 inch9/16 inch (14 mm)4/4 inch1 inch13/16 inch (21 mm)5/4 inch1 1/4 inch1 1/16 inch (27 mm)
How wide is a 2x4 post?
Nominal Depth x LengthActual Depth x Length2×31½” × 2½”2×41½” × 3½”2×61½” × 5½”2×81½” × 7¼”
When did they stop making true 2x4?
This pressured further compromise because thinner 2x4s were a way to compete in price with wood alternatives. Size standards, maximum moisture content, and nomenclature were agreed upon only as recently as 1964. The nominal 2×4 thus became the actual 1½ x 3½, imperceptibly, a fraction of an inch at a time.
Why is lumber smaller than the size it says?
Typically, that rough cut is smaller than the nominal dimensions because modern technology makes it possible to use the logs more efficiently. For example, a “2×4” board historically started out as a green, rough board actually 2 by 4 inches (51 mm × 102 mm).
Is 2x2 lumber actually 2x2?
Nominal MeasurementActual (inches)Actual (mm)2 x 21-1/2 x 1-1/238 x 382 x 41-1/2 x 3-1/238 x 892 x 61-1/2 x 5-1/238 x 1402 x 81-1/2 x 7-1/438 x 184
What is nominal post size?
If your posts are less than their named dimension (I.E. less than 4×4, 4×6, or 6×6) you have a Nominal post. If they are equal to or greater than their named dimensions, you have an Actual or True post.
What is the actual size of a 5x5 post?
MOLDED 5″ X 5″ (Actual Dimensions 4-1/2″ X 4-1/2″) – Plastic Lumber Yard.
What size is 5 4 decking?
5/4 Decking Actual Dimensions 1″ x 5.5.”
What is the actual size of a 6x6 post?
Actual Size In North America, the lumber industry defines standard wood post sizes as 4×4 or 6×6. The outside dimensions of the standard 4×4 measure 3-1/2″ x 3-1/2″, and the outside dimensions of the standard 6×6 measure 5-1/2″ x 5-1/2″.
Why is it called 5 4 board?
4/4 (four-quarter) lumber is 1″ thick when rough sawn. When 4/4 lumber is planed, it is typically finished at 13/16″ thick. 5/4 (five-quarter) lumber is 1.25″ thick when rough sawn. When 5/4 lumber is planed, typically it is finished at 1.063″ thick.
Can I use 4x6 for deck post?
Size of the deck Most professionals will encourage you to consider going with a 6×6 deck post form the outset of the project. … Decks that are going to be built higher than just a few feet off the ground will likely need something more substantial than a simple 4×4.
What is the actual size of a fence board?
Typically, pickets are 3 1/2″ wide, 5 1/2″ or as much as 11 1/2″ wide, if you are going to use dimensional kiln-dried lumber. This includes most treated pine boards. We use CCA treated or red cedar boards. The red cedar that we use is a full 6″ wide.
Is 2 ft deep enough for fence post?
2 feet is the minimum depth that you should dig your fence post holes for. To dig the holes one-third to one-half of the post’s aboveground height, is a general formula. The deeper you dig the holes, the more stability your fence has.
How far apart do you put fence posts?
Most fence posts can be spaced 8 to 12 feet apart. While this is a general criteria, it doesn’t cover all scenarios. For instance, high tensile fence can have larger spacing, requiring line posts every 15 to 20 feet for field fence styles, and as much as 20-30 feet for high tensile barbed and smooth wire.
How deep should a 5ft fence post be?
Lawsons experts recommend you should dig a hole which has a depth of 2 ft (24 in / 600mm) to ensure you have a stable timber or concrete fence post.
How tall is a 4x4 post?
Maximum Allowable Height for a 4×4 Deck Support Post The maximum allowable 4×4 deck support post height under the 2015 IRC is 8-feet. The longer a post, the more likely it is to bend under load than shorter posts, thus the limit set on the height of 4×4 posts.
Can you use 4x4 posts for a deck?
In the past, many decks were built with 4×4 support posts (also called structural posts). But these can bow seriously, even if a deck is only 3 feet off the ground. For that reason, we strongly recommend that you use 6x6s instead, even if your building department does not demand them.
How many posts are needed for a 10x10 deck?
A freestanding 10′ x10′ deck needs 4 posts, supporting two pairs of 2-ply non-incised 2×8 beam, upgrading the beam to 3-ply using incised wood.
Will Lowes cut my wood for me?
We make your projects easy. We can cut lumber, mini-blinds, pipe, rope, chain and more. Lowe’s also offers free pipe threading and cutting for any size of galvanized or black iron pipe.
