Brickwork Projects

Published on 18 June 2021 at 07:28

How to Build a Brick Wall

Follow our step-by-step guide to bricklaying, from mixing mortar to getting a good-quality finish.

 

Bricklaying is considered one of the more approachable construction skills, so many self builders want to give it a go. But it isn’t a task to be taken on lightly, especially if you’re building structural walls.

The easiest route to great results is enlisting a good brickie. Using an experienced tradesperson may be cost-effective, too, as it’s likely to speed up the build and minimise mistakes.

Of course, if you do want to tackle an involved bricklaying project, it makes sense to practice. Even the most confident DIYer will need to get to grips with the process first.

 

FIND BRICKS FOR YOUR PROJECT

 

Trying your hand at building a garden wall is a great place to start. You’ll learn everything from setting out the footprint and maintaining level and square to mixing the mortar, bedding the bricks and finishing joints neatly.

Before you begin your project, you’ll need to figure out the number of bricks required. Standard types are 215mm x 102.5mm x 65mm.

To get an accurate picture of the number of bricks required, you’ll also need to account for a 10mm mortar bed. So to come up with the correct calculations, input your brick size as 225mm x 102.5mm x 75mm for standard products.

You’ll then want to add an allowance for cuts and wastage. Typically, you might overorder by 5% for a house or garage wall where there will be structural openings (such as windows). You might get away with less on a simple garden wall.

 

Project guide: Brick wall step-by-step

You will need

  • Brick trowel
  • Old board
  • Tape measure
  • Spirit level
  • Brick/string line
  • Shovel
  • Club hammer
  • Bolster
  • Stiff brush

There are 11 steps in this guide to building a brick wall.

 

Step 1: Start your brick wall at the corners

Firstly, lay out the bricks at both ends of your wall where the pillars will start. This should be done after any necessary foundations have been prepared. Using your string line, make a straight guideline at brick height between the two outside bricks.

 

Step 2: Mix the mortar

Following this, heap five shovels full of sand and one of cement on an old board. Turn shovel to mix to a consistent colour. Form a central hollow, pour in water and mix. Repeat for a smooth, creamy texture that’s wet but not too loose.

 

Step 3: Lay the first course of bedding mortar

Next you should lay a 1-2cm mortar bed along the string line. Starting at one end, lay the first brick and tap slightly to ‘bed in’. ‘Butter up’ one end of the next brick with mortar and abut it to the first. Repeat using string line as a guide.

 

Step 4: Create the brickwork

At the point where you want your brickwork to start, place a brick side-on to the end of the wall. As you build up the wall, each consecutive course of  brickwork must be laid using the half bond method.

 

Step 5: Cutting bricks

When building brickwork, at certain courses you’ll need to lay half-bricks. To make a cut, place the brick on its side, locate the bolster at the split point and strike the head firmly with a club hammer. It should split cleanly first time.

 

Step 6: Keep the brickwork one course ahead

Always build at least a course higher on your corners than the rest of the wall. Move the string line up as you build, bedding your linepin  into the mortar . For a stretcher bond, the end of each brick should be over the centre of the one beneath.

 

Step 7: Make sure you’re sticking to 10mm mortar joints

Horizontal and vertical mortar joints should be 10mm thick. With standard bricks there should be 75mm from the top of each brick to the top of the one beneath. If your bricks soak up moisture fast, you may want to ‘joint up’ (step 10) as you go.

 

Step 8: Add a coping stone

You may want to add a coping stone to finish when you reach the top of the pillars. Alternatively, you could create a pleasant effect at less cost by bedding bricks into the mortar on their sides

 

Step 9: Decorative brick soldier course

Adding a ‘soldier course’ is an attractive option to top the main part of any brickwork. Turn your bricks vertically lengthways and lay along the full length. Use a second, higher string line to keep a uniform finish

 

Step 10: How to finish the mortar beds

To finish the beds, use the rounded edge of a brick jointer to scrape mortar into the joints. Start with the horizonal lines and follow with the vertical – it’s easier to remove any excess mortar this way.

 

Step 11: Clean up

Lastly, give the finished wall a gentle brush over and clean up any mortar that has fallen onto the floor before it dries. You can use water to wash cement away from the floor, but be sure to keep it away from your newly-built wall!


Brickwork/Blockwork Q&A's

Is bricklaying easy or difficult to do

Bricklaying is considered one of the more approachable construction skills, so many self builders want to give it a go. But it isn’t a task to be taken on lightly, especially if you’re building structural walls.

Should i try bricklaying myself

Of course, if you do want to tackle an involved bricklaying project, it makes sense to practice. Even the most confident DIYer will need to get to grips with the process first.

How do i make a good job out of bricklaying

The easiest route to great results is enlisting a good brickie. Using an experienced tradesperson may be cost-effective, too, as it’s likely to speed up the build and minimise mistakes.

How/when do i start bricklaying

Firstly, lay out the bricks at both ends of your wall where the pillars will start. This should be done after any necessary foundations have been prepared. Using your string line, make a straight guideline at brick height between the two outside bricks

How do i mix mortar

Following this, heap five shovels full of sand and one of cement on an old board. Turn shovel to mix to a consistent colour. Form a central hollow, pour in water and mix. Repeat for a smooth, creamy texture that’s wet but not too loose.

 

How do i spread a trowel of mortar

Next you should lay a 1-2cm mortar bed along the string line. Starting at one end, lay the first brick and tap slightly to ‘bed in’. ‘Butter up’ one end of the next brick with mortar and abut it to the first. Repeat using string line as a guide.

Where do i start my brickwork

At the point where you want your pillars to start, place a brick side-on to the end of the wall. As you build up the wall, each consecutive course of pillar bricks must be laid in the opposite direction.

What methods do i use when bricklaying

Always build at least a course higher on the pillars than the rest of the wall. Move the string line up as you build, bedding it into the mortar on the pillars. For a stretcher bond, the end of each brick should be over the centre of the one beneath.

 

What is brickwork gauge and how do i do it

Horizontal and vertical mortar joints should be 10mm thick. With standard bricks there should be 75mm from the top of each brick to the top of the one beneath. If your bricks soak up moisture fast, you may want to ‘joint up’ (step 10) as you go.

 

What is stretcher bond

For a stretcher bond, the end of each brick should be over the centre of the one beneath.

How big should my mortar joints be

Horizontal and vertical mortar joints should be 10mm thick. With standard bricks there should be 75mm from the top of each brick to the top of the one beneath. If your bricks soak up moisture fast, you may want to ‘joint up’ (step 10) as you go

Can i add any other types of brickwork

Adding a ‘soldier course’ is an attractive option to add to the main part of any brickwork. Turn your bricks vertically lengthways and lay along the full length. Use a second, higher string line to keep a uniform finish.You may also want to add a coping stone to finish when you reach the top of the pillars. Alternatively, you could create a pleasant effect at less cost by bedding bricks into the mortar on their sides.

 

What is a jointer brickwork finish

To finish the beds, use the rounded edge of a brick jointer to scrape mortar into the joints. Start with the horizonal lines and follow with the vertical – it’s easier to remove any excess mortar this way.

What do i do when the brickwork is finished

Lastly, give the finished wall a gentle brush over and clean up any mortar that has fallen onto the floor before it dries. You can use water to wash cement away from the floor, but be sure to keep it away from your newly-built wall!


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