A beam is made of **concrete, wood, or metal **to give support. It is a load-bearing tool that can **vertically transfer all incoming load.**

Do you want to know** what size beam is for 24 foot span?** Well, using the right size beam is essential to ensure** proper support.**

So let’s know how to calculate beam size to avoid a wrong purchase.

## What size beam for 24 foot span?

**For 24 foot span, you should use a minimum of 4-2×18, 18”*24” or 8*8 size beams. The appropriate size of the beam for a 24-foot span depends on various factors such as the load it will bear, the type of wood or material, and the spacing of the beams. **

24 Foot Span Beam Size Chart:

Lumber Size | Maximum Span |
---|---|

4×6 | 9 feet 11 inches |

4×8 | 12 feet 4 inches |

4×10 | 14 feet 7 inches |

4×12 | 16 feet 10 inches |

6×6 | 11 feet 10 inches |

6×8 | 15 feet 2 inches |

6×10 | 18 feet 2 inches |

6×12 | 20 feet 3 inches |

## Calculate beam size

Typically beam size depends on the span **between two supports** and the predicted **load on the beam.**

The beam is made in different sizes to rule the different **types of shear forces and stresses.**

**Beam’s depth **is the key to deciding its** load-carrying capacity**. We use a beam with the top bar that **faces compression.**

On the other hand, the bottom bar faces tension. As a result, the tension bar experiences a **bending moment and stirrup. **

So you can always use **a standard-size RCC concrete beam** if you don’t have expertise.

At least a **9″ ×9″ size beam **can give you enough support. The depth of the beam needs to rise or decrease depending on its **span and load value.**

So according to **the span value, **you need to adjust the size. You can apply different methods to **calculate beam size.**

**Below we will discuss two popular methods to calculate the beam size.**

### 1. IS 456:2000

IS 456:2000 method declared that when you are choosing a **beam for the RCC column for a 2-3 story building** follow the below Standards.

- First of all the
**cantilever beam span**need to maintain a depth ratio minimum of 7 - Besides, the supported beam span’s
**standard depth ratio is 20** - The
**continuous beam span**depth ratio should be 26

So when you are buying a beam for a **24-foot span** the standard depth ratio for the **supported beam is 20**, span is 24 feet so the standard depth= is **24×12″/20= 15**“, and the **diameter of the beam= 16 mm**, and the cover = 1″ so the ultimate depth= standard depth + cover+ 1/2 of the diameter of beam bar = **15″+1″+0.3″=16.3″**

Thus you can count it as** 18″ for ease of calculation** or size.

**Now the width = D/1.5= 18″/1.5= 12″**

According to the formula, you need a **15″ ×18″ beam for a 24-foot span** where the width is 12 inches and** the depth is 15 inches. **

It is the calculation for the **supported beam.**

But if you want to know the **beam size for the continuous beam** for a 24-foot span then below is the calculation.

The **continuous beam size **for a 24-foot span is 12″ ×15″ where the depth is 15 inches and **the width is 12 inches.**

You should use a **25mm clear cover** and 2 nos of 16 mm bar at the top and** 2 nos of 20 mm bar **at the bottom to make the beam secure.

All the above calculation is done using the thumb rule for a **2-3 story building.**

### 2. Thumb Rule Method

You can easily calculate beam size using the thumb rule. Here the rule us to calculate **beam size and depth.**

**1 foot (span of the beam) = 1inch (depth of beam)**

Suppose the** beam span is 24 feet** then the depth should b 24 inches, beam width = 24/1.5= 16.

You can increase the value a bit to **avoid calculation errors.** So take the value as 18″.

According to the thumb rule, you need **an 18″ ×24″ inches beam** for a 24 feet span.

## What are the different types of beams?

There are three main types of beams: **wood beams, steel beams, and concrete beams.**

### Wood Beam

Wood beams are the most common **type of beam **used in construction.

They are **made from lumber** that has been cut to size and then joined together to form a beam.

Wood beams are **strong and durable,** but they can be susceptible to** fire and termite damage.**

### Steel Beam

Steel beams are made from** rolled steel **that has been cut to size and then welded together to **form a beam.**

**Steel beams** are very strong and are often used in construction that requires long **spans or heavy loads.** Steel beams can be **susceptible to corrosion.**

### Concrete Beam

Concrete beams are made from concrete that has been **formed into a beam shape.**

**Concrete beams **are very strong and are often used in construction that requires **long spans or heavy loads.**

Concrete beams can be **susceptible to cracking.**

## Which type of beam is best for a 24 foot span?

The **best type of beam for a 24-foot span **depends on various factors such as the load it will bear, **the spacing of the beams**, and other design considerations.

Below are some commonly used beam types and their advantages:

### Wood beams

Wood is a common material for beams due to its **availability, cost-effectiveness,** and ease of construction.

Wood beams can be **solid or engineered,** and they come in different** grades and sizes. **

The advantage of** wood beams **is their aesthetic appeal, and they are suitable for many **residential applications.**

### Steel beams

Steel beams are commonly used in **commercial and industrial buildings **due to their strength, **durability, and fire resistance. **

Steel beams are available in various sizes and shapes, and they can span longer **distances than wood beams. **

The advantage of** steel beams** is their ability to support **heavy loads and resist deflection.**

### Glulam beams

Glulam (glue-laminated) beams are engineered **wood products **that consist of **multiple layers of dimensioned** lumber bonded together with adhesive.

Glulam beams are** strong, durable, and versatile, **and they come in various sizes and shapes.

The advantage of glulam beams is their ability to **span long distances** and resist deformation.

### LVL beams

LVL (laminated veneer lumber) beams are similar to **glulam beams** but are made of thin** layers of wood veneer glued** together.

LVL beams are **strong, stable, and uniform**, and they come in various sizes and lengths.

The advantage of** LVL beams **is their ability to span long **distances and resist sagging.**

## Common Mistakes When Selecting a Trowel for Mosaic Tiles

### Overloading with Adhesive

Overloading your trowel with **adhesive** can lead to a messy application. It’s important to use just enough **adhesive to secure the tile**, but not so much that it **seeps out from the sides.** Remember, less is more!

### Notch Size Importance

The size of the **notches** on your trowel matters. If they’re too large, you might apply too much adhesive; if they’re **too small,** there might not be enough. The key is to **match the notch size** with the tile size.

### Not Considering Tile Backing

**Tile backing** can affect how well the adhesive sticks. Some tiles have a mesh backing that can **interfere with adhesion** if not properly accounted for. Always check the tile backing before applying adhesive.

### Mortar Consistency

**Mortar** should be mixed to a specific consistency – like** peanut butter**. If it’s too thin, it won’t hold the tile; if it’s** too thick,** it’ll be hard to work with. Always follow the **manufacturer’s instructions when mixing.**

### Manufacturer’s Recommendations

Ignoring **manufacturer’s recommendations** can lead to poor results. Manufacturers often provide **specific recommendations** for adhesive and trowel type. Always read and follow the manufacturer’s recommendations for the best outcome.

## FAQs About Beam For 24 Foot Span

### What size of lumber is required to span 20 feet?

It is not accurate to state that a** 2×8-10 dimensional lumber **spaced at 16 inches on center can span 20 feet.

The **appropriate size of lumber** required to span 20 feet depends on various factors such as the load it will bear, the spacing of the lumber, and **the type of wood. **

### What size beam can span 24 feet?

According to the thumb rule an **18″ ×24″ beam can span 24 feet.**

The appropriate size of beam required to span 24 feet depends on various factors such as the load it will bear, the spacing of the **beam, and the type of beam. **

### How to know the beam size?

Use the below formula to **calculate beam size.**

The total depth of beam= **effective depth + diameter of bar/2+ cover size.**

### Why do we use beam span?

To maintain **building code** it is essential to use beam span.

It provides support for the joists which is important to ensure your safety.

### What Is The Maximum Span Of The Beam Without A Column?

If you use **an LVL beam** then you can maximum span is **20’-30’ without a column. **

For ordinary structures, it can be a **maximum of 7.5 m. **

## Bottom line

**Determining the appropriate size of the beam for a 24-foot span** requires consideration of various factors such as the load it will** bear, the spacing of the beams, and the type of beam. **

While a table of **standard lumber** sizes can provide a general reference, it is recommended to consult with a **structural engineer **or a building professional to ensure the safety and structural **integrity of the building.**