How Much Does a Cinder Block Weight in 2021? [Updated]

Cinder blocks have not been mass-produced for nearly fifty years now. The technical term for cinder blocks is concrete masonry unit or CMU. Concrete blocks have replaced cinder blocks now. Cinder blocks are now used for small projects in the garden or in the basement etc.

Cinder blocks are comparatively light. They are made of concrete and cinder. Projects that used cinder blocks, need to pay more money in repairing and maintenance. This is why cinder blocks gradually lost their popularity.

how much does a cinder block weigh
How Much Does a Cinder Block Weigh

How Much Does a Cinder Block Weigh? (2021)

The size of a cinder block will determine its weight. The standard size in the USA is 8” × 8” × 16”. This is also a common size all over the world. Weight of a cinder block this size will be around 36lbs. Here is a list of different cinder blocks’ weights according to their size.

Average Cinder Block Weight

Cinder blocks are available in different sizes. And their size determines their weight.

Standard Size (W × H × L)Weight
8” × 8” × 16” stretcher36lbs or 16.3 kg
4” × 8” × 16” partition24lbs or 10.9 kg
6” × 8” × 16” partition28lbs or 12.7 kg
10” × 8” × 16” stretcher43lbs or 19.5 kg
12” × 8” × 16” stretcher46lbs or 20.1 kg
8” × 2” × 16” cap15lbs or 7 kg
4” × 8” × 16” cap35lbs or 16 kg

What are Cinder Blocks Made of?

Cinder blocks are made with a mixture of concrete and slag material. That’s why they also get the name slag blocks. Different slag materials are used today to make cinder blocks. They are called fillers. Such fillers can be:

  • Broken Glass.
  • Gravel.
  • Crushed Granite.
  • Expanded Clay, etc.

How Much Weight can Cinder Blocks Withstand?

It depends on a number of factors. If the cinder block is used in a wall, the height of the wall will determine the weight it can hold.

According to ASTM C90, a hollow load-bearing concrete masonry unit should have a compressive strength of 1900 psi. This compressive strength determines the amount of weight a block can withstand.

An eight-inch block is 50% solid. So, if I did the math right, it will be able to withstand 120,000 pounds. Much less weight is put in reality. This is for maintaining the building’s safety.

How Much Does a Cinder Block Cost?

According to data from 2021, the average cost of a standard cinder block can range from $1-$3 for each block. The actual cost depends on a number of things.

The block size is also a key factor. We’ve already seen how the blocks vary in size and style. So, we can understand the difference in the price of cinder blocks.

Cinder Block Cost Summary

The bigger the block, the bigger the price. Here is a list of cinder block costs according to their width:

Cinder Block WidthCost
4 inches $1.35
6 inches$1.35
8 inches$1.50
10 inches$1.85
12 inches$2.05

The place where you live will have an effect on the cost of your cinder block. The availability of cinder blocks in your geographical location will determine the cost to a good extent.

The vendor you are buying from is also something to be considered. A vendor will adjust the price according to market conditions. So, the overall supply chain and market demand will determine the actual price.

The block style is also something to be considered. Different styles of blocks are used in different projects. So, the type you are using will determine the money you spend.

How Much Does it Cost to Build a Basic Cinder Block Wall?

According to Home Advisor, “It will cost you $475-$655 on average to build a basic cinder block wall. The cost per square foot will be $9-$12″.

Cinder Block WallPrice
Low Cost$1080
High Cost$1440
Average Cost$1260

What are Cinder Clocks Used for?

Cinder blocks are not used for major construction projects. They are easily soaked in water. Because of this, they are damaged easily. This increases the repair cost and maintenance costs of the cinder blocks.

These are not satisfactory features for major construction materials. So, cinder blocks are used for small projects. Cinder blocks are used in garden walls, garages, summer kitchens, and different ancillary facilities.

The cinder blocks are also used as a finishing material. They are not used to provide any base to the construction. They are just used for decorative purposes.

Advantages of Using Cinder Blocks

The use of cinder blocks has many benefits. Here are some of them.

  • Cinder blocks are heat resistant. This increases the safety of your construction by reducing fire-related risks.
  • Weak thermal conductivity causes the construction to be cooler than usual.
  • Easy construction process. The projects using such materials are completed fast. The duration is not that big.
  • There is a wide range of solutions that you can find. Cinder blocks offer a variety of geometric solutions to the project.

Disadvantages of Using Cinder Blocks

Using cinder blocks has a few disadvantages, which are listed below.

  • A cinder block is costly to maintain. People have spent more money on repairing and maintaining the cinder blocks. This increases the overall cost of the project.
  • Cinder blocks are easily soaked in water. This damages the construction and reduces capacity.
  • Cinder blocks are not noise-proof. Different noises easily pass through the cinder blocks.

Difference Between Cinder Blocks and Concrete Blocks in 2021

Cinder blocks and concrete blocks differ in a number of ways. Here are some of the main differences between them.

Cinder BlocksConcrete Blocks
Cinder blocks are made of concrete and cinder.Concrete blocks are made of steel, wood, and concrete.
Cinder blocks are lighter in weight.Concrete blocks are heavier in weight.
Cinder blocks can’t tolerate high pressure.Concrete blocks are able to tolerate higher pressure levels.
Cinder blocks are used in smaller projects.Concrete blocks are used in big constructions.
Cinder blocks are old. They are not used anymore in mainstream construction. They haven’t been mass-produced for fifty years now.Concrete blocks are harder and stronger compared to cinder blocks. That’s why their use is widespread in the construction industry now.
Cinder blocks require constant repairing. This increases the cost of construction and creates hassle.Concrete blocks are stable and don’t need much repairing. This makes them a priority in the eyes of the builders and the owners.

How Do I Know the Weight of a Massive Concrete Block without Weighing it?

You don’t have to weigh every concrete block. You can simply use math to find the weight of a massive concrete block. Just get all the actual dimensions of the concrete block i.e., height, width, length, and use this formula,

(Height × Width × Length) × 2400

 Because the Density of concrete is 2400 kg per cubic meter.

Now I’m answering the most common question that people also asked about (Cinder Block Weigh): FAQ

Which one is stronger? Cinder blocks or concrete blocks?

The average concrete block is stronger than the average cinder block. They are able to withstand more weight. They are heavier and also more durable. They don’t have to be repaired much.

Why do some cinder blocks weigh more than the others?

There are different types of cinder blocks according to size and size. Every type of cinder block has a different task. According to the tasks they are designed. And this causes them to vary in weight, size, and style. There is also a solid block available. It weighs more than the usual blocks.

Can a cinder block stop a car?

No, a cinder block is not able to stop a car. The cars are stopped using concrete. Using any other kind of softer asphalts will not stop a car.  A Lightweight block will not help in any way. So, I recommend not using a lightweight block.

How many cinder blocks do I need to build?

Multiply the total area with 1.125 to get the total number of blocks you will need.

This guide will help you reduce the cost of cinder block weighs in an efficient manner. You’re welcome to share your cinder block weigh experience or ask questions. You can learn more about cinder block, concrete block, cement block, CUM block, and other related topics by reading on.

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