FAQ: How To Build A Cinder Block Garden Wall?

Do you need a footing for a cinder block wall?

A: To construct a block wall, you need to establish a solid footing that is a minimum of twice the width of the concrete block. For example, a typical 8x8x16-in. block would require a 16-in. wide footing and extend below the frost line.

How much does it cost to build a cinder block wall?

Cinder Block Wall Cost



While some capstones can cost as little as 95 cents apiece, the average cost of a cinder block is $1 to $3 each. The total cost of building a cinder block wall ranges between $9 and $12 per square foot with labor, so an 8 x 15-foot wall would cost between $1,080 and $1,440.

What do you fill cinder blocks with?

The concrete blocks that are used to build block foundations are hollow. After the concrete blocks are laid, the voids can be filled with a cement-based mortar or poured concrete that contains small pea gravel.



Do you need to fill cinder blocks with concrete?

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Block Wall Thickness Blocks Filled per Cubic Yard Concrete/Grout per 100 Block
12″ 65 1.54 yd3

What is the difference between concrete block and cinder block?

Concrete block is produced from steel, wood or cement. Cinder block is lighter than concrete blocks. Concrete block is heavier because it contains stone and sand. Cinder block does not have the strength to withstand high pressure.

How do you estimate a cinder block wall?

After you have found the square footage of both your wall and your block, determining the number of blocks you need is as simple as dividing the wall square footage by the block square footage. If you’re using a standard 16″ x 8″ x 8″ block, find the number of blocks needed by dividing the wall square footage by 0.89.

Why do cinder blocks have holes?

The openings are called “cells” and one reason they are there is because they make the blocks lighter and easier for a mason to handle. But the primary purpose of the cells is that they align from top to bottom of the wall when laid, and enable a builder to fill some cells with grout/concrete to strengthen the wall.

How tall can a cinder block wall be?

It is not uncommon to create designs with an h/t from 32 to 50. That could produce wall heights of up to 33 feet for walls built with 8-inch concrete masonry units (CMU), 41 feet for 10-inch CMU, and 50 feet for 12-inch CMU.

How many concrete blocks can a Mason lay in a day?

Every pound matters when a mason is laying between 90 and 120 blocks a day.

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How much does a 12 inch concrete block cost?

Concrete blocks are referred to as CMUs, or concrete masonry units. The price can vary depending on the actual width of the block. For example, a 4 to 6-inch block costs $1.35 each, while an 8-inch block costs $1.50 each, on average.



Concrete block cost.

Block Size Average Cost
10 inch $1.85
12 inch $2.05

How long does cinder block last?

Concrete block is a great material when it’s made correctly. It’s artificial rock, when you think about it. Your builder’s statement about it lasting at least 100 years is not far off when you look around you.

How do you waterproof cinder blocks?

Paint the cinder block wall with a thick coat of masonry waterproofing paint, pusing paint into cracks and crevices of block. A paint roller or brush made specifically for masonry is best. All to dry overnight or for a minimum of 12 hours between coats.

Can you ramset into cinder block?

If powder, using the right nails and loads, you can usually set anywhere. You may get some minor spalling on the inside of the block, but it’s not too bad, WITH THE RIGHT NAILS AND LOADS. The problem is if you use the loads for the open web part of the block, and hit the solid part, they may not sink flush.

Can you fill cinder blocks with dirt?

It wouldn’t be recommended if you are in an area where it will freeze. The dirt will hold moisture, and when it freezes could split the block. Really not a big deal for a planter bed, but it can happen. If it never freezes, have at it, it will not be a problem.

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