What size wood beam do you need for 20′, 16′, 18′, 12′, 22′, 24′, 25′, 26′ & 30 feet span depends on several factors, load, type of wood species, building code and construction requirements.

Beam is generally made of wood or timber, steel and rcc concrete providing with reinforcement Steel. It is load bearing structure and flexural member of frame structure that supporting the floor joist that vertical transfer all the incoming dead load, live load and self load of roof to the post or column via post- beam joint through development length of structure element to the foundation and finally to the soil.

**Size of beam** generally depending on span between two support and all the load acting on it. Beam is structural member subjected to flexural stresses and shear forces . The size of the beam (width and depth of beam) are governed by the different type of shear forces and stresses. When the beam is subjected to loading the bending moment is developed and the moment carrying capacity of the beam depends mainly on the depth of the beam.

In this article we mainly know about wood beam size (depth and width). Many species of wood Douglas fir, southern yellow fine, spruce pine fir, others hardwood of different grade of lumber #1, #2 or #3 are used for beam.

The most common wood beam size are mainly of 2 ply such as 4×8 or 2-2×8, 2-2×10, 2-2×12, 3 ply 6×8 or 2-3×8, 4 ply 8×10 or 4-2×10 and 5 ply 10×12 or (5-2×12) are used for house framing.

A wood beam is a structural support made from different species and grade of wood wood. They are most commonly used in wood frame structures like small houses, although they can be used in other types of construction as well. Beams are designed to resist bending when stressed by weight or forces like high winds.

They are included in structural elements like floors and roofs to distribute the weight of the structure and provide support. Historically, wood was the most common construction material in many regions of the world in US, UK, Canada and solid wood beams were a preferred method of structural support.

A **John Deere Skidder** is a type of heavy equipment used primarily in the logging industry to transport logs from forest floor to a nearby location for further processing or loading onto trucks. Essentially, skidders drag, or “skid,” logs across the terrain, hence the name. They are integral for loggers who need to efficiently move logs from the cutting site to the landing area.

The type of wood and size of the beam both play a role in how much weight a single wood beam will be able to bear.

Highly dense, close-grained woods of different species tend to be preferred because of their increased strength, as well as resistance to insects and rot. The wood beam can be cut in a solid block, I, or H shape, depending on the needs of construction.

In some cases, multiple pieces of wood are stacked and bound to create a single beam. If 2 beam nailed together known as 2 ply beam such as 2-2×10 or 4×10, if 3 beam nailed together known as 3 ply beam such as 3-2×10 or 6×10, if 4 beam nailed together known as 4 ply beam such as 4-2×10 or 8×10 and if 5 beam nailed together known as 5 ply beam such as 5-2×12 or 10×12.

**◆You Can Follow me on Facebook and**

**Subscribe our Youtube Channel**

**What size wood beam for 20′, 15′, 16′, 18′, 12′, 22′, 24′, 25′, 26′ & 30 feet span**

A rough sawn wood beam is one whole piece of lumber cut to size. For deciding wood beam size a common rule of thumb used for estimating the depth needed for a wood beam is the span/15. The width of the beam is commonly 1/3 to 1/2 of the beam depth. Deflection under full load should never exceed 1/360 of the total beam’s span.

In general, the size of wood beam required for a 20-foot span need to be 8×16, whereas the size of wood beam required for a 10-foot span need to be 6×8. Moreover, the size of wood beam required for a 12-foot span need to be 6×10, whereas the size of wood beam required for a 16-foot span need to be 6×14. In addition, the size of wood beam required for a 18-foot span need to be 6×16, whereas the size of wood beam required for a 24 to 26-foot span need to be 8×18.

**Wood beam size for 20 feet span**

The size of wood beam required for a 20-foot span need to be **4-2×16 or 8×16 (4-nail 2×16), **which includes a 16 inch depth and an 8 inch width. So if the **span of the beam is 20 feet**, you may need 8×16 size wood beam.

**Wood beam size for 10 feet span**

Typically in residential buildings or any other projects, **a wood beam size of 3-2×8 or 6×8 (3-nail 2×8) **is required for **10 feet** span. So if the **span** **of** **the** beam is **10 feet**, the depth of the **wooden** beam should be **8 inches** thick and the width should be **6 inches**.

**Wood beam size for 12 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **3-2×10 or 6×10 (3-nail 2×10)** is required for **12 feet** span. So if the **span** **of** **the** beam is **12 feet**, the depth of the **wooden** beam should be **10 inches** thick and the width should be **6 inches**.

**Wood beam size for 14 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **3-2×12 or 6×12 (3-nail 2×12)** is required for **14 feet** span. So if the **span** **of** **the** beam is **14 feet**, the depth of the **wooden** beam should be **12 inches** thick and the width should be **6 inches**.

**Wood beam size for 15 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **3-2×12 or 6×12 (3-nail 2×12)** is required for **15 feet** span. So if the **span** **of** **the** beam is **15 feet**, the depth of the **wooden** beam should be **12 inches** thick and the width should be **6 inches**.

**Wood beam size for 16 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **3-2×14 or 6×14 (3-nail 2×14)** is required for **16 feet** span. So if the **span** **of** **the** beam is **16 feet**, the depth of the **wooden** beam should be **14 inches** thick and the width should be **6 inches**.

**Wood beam size for 18 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **3-2×16 or 6×16 (3-nail 2×16)** is required for **18 feet** span. So if the **span** **of** **the** beam is **18 feet**, the depth of the **wooden** beam should be **16 inches** thick and the width should be **6 inches**.

**Wood beam size for 22 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **3-2×18 or 6×18 (3-nail 2×18)** is required for **22 feet** span. So if the **span** **of** **the** beam is **22 feet**, the depth of the **wooden** beam should be **18 inches** thick and the width should be **6 inches**.

**Wood beam size for 24 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **4-2×18 or 8×18 (4-nail 2×18)** is required for 24** feet** span. So if the **span** **of** **the** beam is **24 feet**, the depth of the **wooden** beam should be **18 inches** thick and the width should be **8 inches**.

**Wood beam size for 25 feet span**

Typically in residential buildings or any other projects, **a wood beam size** of **4-2×18 or 8×18 (4-nail 2×18)** is required for **25 feet** span. So if the **span** **of** **the** beam is **25 feet**, the depth of the **wooden** beam should be **18 inches** thick and the width should be **8 inches**.

**Wood beam size for 26 feet span**

A **4-2×18 or 8×18 (4-nail 2×18) size of wood beam** is required for **26 feet** span. So if the **span** **of** **the** beam is **26 feet**, the depth of the **wooden** beam should be **18 inches** thick and the width should be **8 inches**.

**Wood beam size for 28 feet span**

A** 5-2×18 or 10×18 (5-nail 2×18)** size of wood beam is required for a **28 foot** span. So if the **span** **of** **the** beam is **28 feet**, the depth of the **wooden** beam should be **18 inches** thick and the width should be **10 inches**.

**How far can a 2×10 ceiling joist span without support**

**How far can a 2×6 ceiling joist span without support**

**How far can a 2×10, 2×12, 2×8 & 2×6 span for a pergola**

**How far can a 2×8, 2×6, 2×10, 2×4 & 2×12 pergola Rafter span?**

**What size lumber for 20, 16, 18, 10, 12 & 22 feet span**

**Wood beam size for 30 feet span**

**A ****5-2×18 or 10×18 (5-nail 2×18)** size of wood beam is required for a **30 foot** span. So if the **span** **of** **the** beam is **30 feet**, the depth of the **wooden** beam should be **18 inches** thick and the width should be **10 inches**.

**Conclusion**:-

In general, a 6×10 wood beam can span from 10 to 12 feet, while a 6×12 wood beam can span from 13 to 15 feet. Moreover, a 6×14 wood beam can span from 16 to 18 feet, while a 6×16 wood beam can span from 20 to 23 feet. In addition, a 8×18 wood beam can span from 24 to 26 feet, while a 10×18 wood beam can span from 28 to 30 feet.