
Once you have all your gear in place, follow these steps to cut a retaining wall block with a saw:
- Mark your cut line all around the block
- Clamp the block to a work surface to prevent movement as you cut
- Power up your saw and bring it to full RPM before making contact with the block
- Cut slowly, making shallow passes as you go deeper into the block
How do you cut a corner on a retaining wall?
Building any retaining wall corner should be a simple matter of cutting corners on your blocks. Here, you use a simple square and any cutting method you’d like. To cut a perfect corner, you simply want to mark a 45-degree angle. From there, you can score and cut the block in whatever fashion you used to cut the rest of the wall.
How to build a retaining wall with stone blocks?
If you’re cutting stone blocks, you’ll also almost always have to wet them to reduce heat and friction. Building any retaining wall corner should be a simple matter of cutting corners on your blocks. Here, you use a simple square and any cutting method you’d like. To cut a perfect corner, you simply want to mark a 45-degree angle.
How do you cut a stone wall pattern?
Step 1: At the beginning of your wall, place stones #1 and #3 in their places. You’re going to be cutting both of these. Step 2: Lay stone #2 on top of them, with the front corners lined up. You’re NOT going to be cutting this stone, you’re just using it as a cutting pattern. Step 3: Draw lines on stones #1 and #3 where the top stone overlaps them.
How do you fix a split in a retaining wall?
It’s also a good idea to mark the widest angle of the block, because this reduces the depth of the crack. The taller your retaining wall blocks, the more likely you’ll have to clean up the split with a chisel after. Additionally, if you have a hollow cement block, you’ll want to try to split from the side, with the hollow side open to the sky.

What do you cut retaining wall blocks with?
0:041:05How to Cut Retaining Wall Blocks: Step-by-Step Instructions - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou will need a circular saw with a masonry blade. Cut a 45 degree angle on two blocks. When cut andMoreYou will need a circular saw with a masonry blade. Cut a 45 degree angle on two blocks. When cut and in place glue the pieces together with concrete adhesive.
Can you use a circular saw to cut retaining wall blocks?
A circular saw with a masonry blade can also be used to either score or completely cut through the block.
How do you cut concrete block without a saw?
To start with, place the chisel over your line mark and tap it with the hammer, moving right around the block to make a score line roughly 1/8” deep. At that point, return in where you scored and chisel again using sharp blows with the hammer. Then the block will break in two pieces, but with a jagged or rough edge.
How do you split a landscape block?
0:534:38Three Simple Steps for Splitting Solid Concrete Landscape Garden BlockYouTubeStart of suggested clipEnd of suggested clipThis one down the lengthwise. So I'm just going to get where the 4 is. I'm gonna line it up. AndMoreThis one down the lengthwise. So I'm just going to get where the 4 is. I'm gonna line it up. And that nail is gonna give me a nice scratch mark or what we're calling our. Score.
How do you cut a keystone block?
0:572:53Keystone Retaining Walls QUICK TIP: Cutting Units to Fit Your Project!YouTubeStart of suggested clipEnd of suggested clipAlong your mark to make a groove about 1/8 of an inch around the block. Firmly strike the score withMoreAlong your mark to make a groove about 1/8 of an inch around the block. Firmly strike the score with your chisel and hammer to split the unit.
What can I use to cut blocks?
0:512:23How to Cut and Split Concrete Blocks - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou can also use a chop saw with a dry cutting diamond blade to cut completely through the block.MoreYou can also use a chop saw with a dry cutting diamond blade to cut completely through the block. When splitting cap blocks first mark the cap on both the top and the bottom.
What to use to cut concrete blocks?
Way 1: Cut Concrete with a Hammer and Chisel Using a hammer and chisel is one of the popular ways to cut concrete blocks. Here all you need to do is define a layout line across the concrete block, you can use chalk to keep the line visible. Now, you should get ready with safety glasses, a dust mask, and work gloves.
Can you cut concrete block with a Sawzall?
A reciprocating Sawzall is good for cutting concrete if you have the right blade, but it works best on thinner slabs or cinder block. It's all about the blade. Buy a blade as long as possible and with a diamond or carbide grit.
How do you break concrete block by hand?
0:053:22How To Split a Concrete Block In Half - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd we just don't need this full-sized piece for our application so you're just going to need aMoreAnd we just don't need this full-sized piece for our application so you're just going to need a three pound sledge hammer one side being tapered like this.
How do you split a block with a chisel?
1:065:17How to split landscape blocks or natural stone - NO special tools ...YouTubeStart of suggested clipEnd of suggested clipI just used a chisel. And I started following that line. And I followed it all the way around theMoreI just used a chisel. And I started following that line. And I followed it all the way around the block several times with just a mini like a three or five pound a little sledgehammer.
What is the lip for on retaining wall blocks?
The lip creates a locking flange on the block, making your retaining wall ideas easier to accomplish. The interlocking retaining wall block can be stacked to build walls up to 24 to 36 inches high, depending on the size of the block.
Does a 3 foot retaining wall need drainage?
A drainage pipe might be needed if: The retaining wall is at least four feet high or taller. Clay or other poor draining soils are behind the wall. There are buried water sources within 50 feet of the retaining wall location.
Can I use circular saw to cut concrete?
Choose the type of blade you prefer to work with for the job: dry-cutting diamond or wet-cutting diamond. The former works with a circular saw or handheld cut-off saw, although you will want to wet the concrete to minimize the dust that flies while you cut.
How do you cut dense concrete blocks?
0:113:22How To Split a Concrete Block In Half - YouTubeYouTubeStart of suggested clipEnd of suggested clipHere. You just can score.MoreHere. You just can score.
How do you cut construction blocks?
1:386:22How to cut concrete blocks - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis block is quite old so a bit hard to cut and some blocks with you quite fresh. Increase goodMoreThis block is quite old so a bit hard to cut and some blocks with you quite fresh. Increase good whack you should get a nice clean break.
What is a block saw?
BlockSaws. Industrial block saws are used to trim and size blocks of material, such as rigid foam, insulation, high & low density materials. Other materials we have cut include: wool, panel, plastic, and plywood. This is often the first step in producing pipe half rounds or curved sidewall segments.
1. Measure Your Cut
Whether you’re using bricks, pavers, or natural stone, you will likely have to make cuts on the edge and corner pieces to complete an attractive retaining wall. Measure the amount of space your block needs to fill to run flush with the rest of the wall. If you’re using mortar between your blocks, subtract ½” to account for the joint.
2. Mark the Cut on the Block
Measure the cut on your retaining wall block and mark it. Using your square, run a straight line with your marker around all four sides of the block to indicate the cut line.
3. Score the Cut Line with the Chisel
Place the block on a sturdy, solid work surface. Hold your chisel by the stem and position the blade directly over the cut line on your block. Tap the chisel with your hammer to score the line.
4. Split the Block
After scoring the cut line with the chisel, all that’s left is to continue chiseling until the block splits in half. Insert the chisel into the score mark and hammer it into the block until it eventually falls apart in a clean break.
5. Smooth the Edge
The edge of your cut block should be smooth enough to use, but if not, you can clean up any imperfections with your chisel. Gently chisel away any protrusions from the cut side. Keep the flat chisel side flush against the side of the block to prevent yourself from accidentally breaking off more of the stone.
How to Cut Retaining Wall Blocks with a Circular Saw
If you only have to make a few cuts, a hammer-chisel combo is an uncomplicated option for preparing retaining wall blocks. Sometimes, you may have several blocks to cut or need more precision.
How far should a keystone wall be from the edge of the building?
If the wall is going to tie into a building or structure, measure the distance from the corner of the Keystone unit to the edge of the building and make sure the distance is in an increment of 18-inches (457mm), or the full unit width to avoid having to cut a unit.
How high should a retaining wall be?
When using a 4” landscape retaining wall product, such as Keystone Garden Wall or Insignia Wall, we recommend building a gravity wall no higher than 2’h. A 6” landscape unit, like Legacy Stone or Country Manor, can typically build a 3’h gravity wall without the use of geogrid. Keystone’s structural retaining wall products, including Keystone Compac and Keystone Standard, can be engineered to construct walls from 6’h to 50’h+. Wall heights are dependent on the unit type, soil conditions, amount of batter, and surcharge on top of the wall. For our structural units, the best way to determine if your wall will require the use of geogrid is to consult the Keystone Gravity Wall and Soil Reinforced Wall charts.
What is compacting backfill?
Compacting backfill material in 8 to 12-inch lifts allows for effective compaction of the entire area behind the wall, without putting unnecessary pressure on the retaining wall units. Consult with a geotechnical engineer for further compaction criteria based on specific site soil.
What materials can be used to build a wall?
Granular materials, such as rock and sand, are best as these materials compact easily and won’t hold moisture that can increase the weight of the soil behind the wall.
How many inches below grade for a wall?
For example, a wall height of eight feet would need 12 inches below grade (8 x 1.5 = 12).
Can you use sand to level a road?
Yes. After the road base material has been leveled and compacted, 1/2" (13mm) to 1" (25mm) of sand may be used to help speed up the leveling process.
How do you cut concrete retaining wall blocks?
There are a few ways to split bricks, patio blocks or pavers — with a drilling hammer and a masonry chisel or using a power saw. The chisel and hammer method is useful if you just have a few cuts to make. For a larger project or more accurate cuts, a circular saw with a concrete blade is a good option.
What saw cuts retaining wall blocks?
Cutting and Modifying Concrete Blocks SAFETY FIRST: Always wear safety glasses when splitting or cutting concrete retaining wall blocks. A dust mask is recommended when cutting blocks. Use a masonry saw with a diamond cutting blade or a metal chop saw with a dry cutting diamond blade.
Can you cut concrete block with a Sawzall?
Use to cut through brick, mortar, stone, cinder block, and more. Caliastro’s 9-Inch Masonry Reciprocating Sawzall Saw Blade has been specifically designed and tested to cleanly and quickly cut through brick, mortar, stone, cinder block, and more.
How do you cut a retaining wall block with a chisel?
Turn the block onto another side and score the marked line across the face. Repeat this at the remaining faces of the block. Position the tip of the chisel at a scored line, and tap the handle of the chisel until the block splits into two pieces.
How do you cut concrete blocks at an angle?
Turn on the angle grinder. Hold the angle grinder so its blade faces out and the guard faces up. When cutting, the blade will throw debris back toward the handle and operator. This protects the user if the angle grinder drops or binds in the cut — the blade will roll the grinder away from the user.
How much are concrete blocks?
While some capstones can cost as little as $0.95 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.
How much do keystone blocks cost?
The Keystone blocks cost anywhere from $5 – $20 a square foot, depending on the block’s style and texture. Installation fees can add about $5 – $10 per square foot. There are a wide range of shapes, sizes, textures and colors to choose from, so design options are almost endless.
How to cut a stone cap?
How to Cut Stone Caps: The Process 1 Set the adjacent caps in place 2 Set the stone cap you need to cut on top so they overlap the adjacent caps. 3 Mark the underside of the stone cap you are cutting. 4 Use a saw to cut the caps. 5 Dry set the cap into place to ensure a good fit. 6 Repeat the process. 7 Glue the blocks into place.
Where do you mark the front and back of a block?
Mark the front and back on the right and left sides from underneath. Basically you’ll make a mark where the overhanging cap meets the other cap , so that you get a snug fit. Do this on the front facing and back side of your block.
How to make a stone cap overhang?
Line up two stone caps right on your wall so that if you set another stone cap on top of them, both sides will have an overhang. This is what it should look like.
How to cut caps with pencil?
Cut the caps with your pencil marks facing up.
Where to mark stone cap?
Mark the underside of the stone cap you are cutting.
When to set stone into place?
Once your stone is cut to size, it’s time to set it into place to make sure that it fits!
Do you need a pencil to mark a block?
You’ll need a pencil or some sort of marking device to do this part. We’re going to make the marks from underneath the block that’s sitting on top. Lucky we have a bit of a gap to reach into, right?
Where to place drainage fill in a wall?
Notes: Place additional unit drainage fill at outside wall corner to extend back from wall face each way a distance equal to the wall height / 2 (H / 2). Note: See Corner Construction, Figure C:4, for additional detail.
Why are inside curves more difficult to construct than straight walls?
Inside curves for moderately tall Keystone walls are more difficult to construct than a straight wall due to the complex geometry resulting from a battered wall face in a curve. Inside curves allow good access for compaction and the wall face units tend to support each other like an arch when the soil strain associated with the active earth pressure condition develops.
Do you need a splitter for acute corners?
In special cases, an acute corner construction is needed. No special units are necessary for the construction of acute corners; you will just need to field split or cut the corner units. All you will need is your tape measure, concrete saw, splitter blade or chisel and a level. The following is the recommended installation procedure for acute corners.
How to cut a stone for a sandstone?
You’re going to be cutting both of these. Step 2: Lay stone #2 on top of them, with the front corners lined up. You’re NOT going to be cutting this stone, you’re just using it as a cutting pattern. Step 3: Draw lines on stones #1 and #3 where the top stone overlaps them. Step 4: Cut stones #1 and #3 along your lines.
How to measure a cut stone?
How to Measure the Cut. If you enjoy geometry, you can cut each stone at an angle to curve along your wall. For a faster job that looks just as neat, try this approach: Step 1: At the beginning of your wall, place stones #1 and #3 in their places. You’re going to be cutting both of these.
What is a topper stone?
Topper stones are usually square, not wedge-shaped, so if you want a smooth top you’ll need to cut them to fit the curve. If your curve is very gradual, you might be able to get away with spreading out the small gaps so they aren’t noticeable. Topper stones are also a bit wider and lighter than the wall blocks, ...
What is the back view of a stone?
The back view shows the overlap of the stones and the cutting line being marked.
Can you use adhesive to attach blocks to a wall?
For a very solid wall, you can also use the adhesive to attach the stackable blocks themselves.
Can you bump a topper stone?
Topper stones are also a bit wider and lighter than the wall blocks, so it’s easy to kick them out of place or bump them with a lawn mower. I have topper stones on my wall, and I’m always knocking them loose and having to put them back.
Can stackable stones be used for retaining walls?
Those wedge-shaped stackable stones are great for building curved retaining walls, but once complete it leaves you with unsightly gaps. For a finished look, you can add topper stones, but it poses some challenges since:
How many mortar bags do you need to bond 100 concrete blocks together?from omnicalculator.com
Have a look at the mortar estimation field. On average, it takes three standard mortar bags to bond 100 concrete blocks together. Please note, that this is a rough estimation, and you might need to calculate it separately using factors such as mortar type.
How to use the concrete block calculator?from omnicalculator.com
Our calculator is simple and intuitiv e to use. To estimate everything your project needs, just follow these instructions:
How many blocks are in a mortar bag?from omnicalculator.com
When it comes to estimating the mortar needed, a good rule of thumb is that three standard bags will typically cover 100 blocks. To calculate the number of such bags, you need to divide the number of blocks by 33.3: mortar bags estimation = number of blocks needed / 33.3.
How many square feet are in a 16x8 block wall?from omnicalculator.com
With these dimensions, it will cover 10 * 50 = 500 square feet. If you use a standard 16" x 8" block, the area of a single block is 128 square inches, and you will need 563 concrete blocks, as 500ft² / 128in² = 72,000in² / 128in² = 562.5 (rounding up to the nearest whole number).
What is mortar joint?from concalculator.com
As a general rule, we use mortar between bricks, stones, blocks etc. and cement for structural projects such as setting posts or foundations for a building. You will also need to make allowances for broken blocks, known as wastage.
