The first thing to do is remove the old walkway
The first thing you need to do is obviously remove the old walkway to pave the way for the new one. This is a very easy process because you just need a jackhammer, which you can rent, some good work gloves and safety goggles. The jackhammer will do the rest of the job for you.
Create the edges
Once the old walkway is gone, you will have to create the edge of the new walkway using either a garden hose or some stakes and string. For an even cleaner edge, you can remove the excess sod with a flat shovel.
Create the brick bed
First, you will need to remove give or take 8” of the top soil and make sure you level the ground. Then, add 4” of gravel and 2” of sand on top of the gravel. If you want to know the exact measurement of the materials you will use, you only have to do some simple mathematics. You will figure it out by measuring the entire length of your walkway, the width and then the depth. If you multiply them, you will get the cubic footage, and as a safety precaution, you can add 5 percent.
Tamping it down
Once you are done adding the stone, you need to tamp it down in place. Ensure that it is levelled so take your time because it is very important. If the bound is not firm once you lay the bricks, after some time they are bound to move. If you do not have a tamper and don’t want to rent one, you can easily build one by nailing a 2 X 4 to the centre of a square wood plank.
Add the sand
You cannot use play sand for this project; you need to have concrete sand because it is jagged and will hold the pavers into place. If you use beach sand, the bricks will shift out of place. Tamp down the sand as well. Spread about 2” of sand on the walk area then put two 1” pipes on both sides of the path. Place a level across the pipes then add more sand until the pipes are levelled. Use the pipes are rail and drag a board over the area, which is called screeding to get a smooth area. You can then remove the pipes, fill those gaps with sand and smoothed by hand.
Pick the pavers
Pavers come in many different sizes, shapes, colours and styles and you have to pick the right one for you. Regardless, they all have a similarity; they have nubs that allow some space between then, which will allow sand between and the sand will lock them in place. To know how many pavers you will need, you have to do some more maths. If you multiply the length with the width, you will get the square footage.
Lay the pavers
You will have to place them gently on the sand without pushing them. Run a string on the outer edge to keep it straight and use a lattice for the curves. If you have curves, you have to cut some bricks, and you can do this with a hand-held saw. You can mark them with a pencil before you cut and take your time.
Fill the gaps
Once all the bricks are in position, sweep dry sand on top to fill all the crack and hold the bricks in place. You can add fill dirt at the edges to hold the bricks in place. You should sweep sand a couple of times especially after rainstorms to hold them completely in place.
You can also find some great advice in this video I found: