How to build a log splitter


A log splitter offers you benefits when you need to split tough, wet or any other kind of wood logs for firewood or other purposes. Log splitter eliminates the need of using a traditional saw or axe. These traditional methods of splitting can be dangerous and tiresome when you are dealing with large stock. Thus convenience, efficiency and reduced turnaround time creates the need of a tool like log splitter that proves to be most efficient for log splitting job.

build a log splitter

Why you need to build a log splitter?

Building a Log Splitter:

Here we have shared steps for building a basic log splitter by you. Following these steps and tips will enable you to easily construct a log splitting machine.

Essentials for building a splitter:

Some of the important components and tools that you will need for building a log splitter include:

  • Splitter plans
  • Engine (At least 5 HP gas engine)
  • Hydraulic oil pump (dual stage)
  • Hydraulic oil tank and filter
  • Hydraulic cylinder
  • Valve
  • Hose
  • Base (metal) for holding the splitter
  • Transporting wheels
  • Welding iron and mask
  • Piston
  • Splitting Wedge
  • Steel Bar
  • Angle Iron pieces
  • Pipe fittings
  • Drill

Preparation for Building Splitter:

Before you actually begin to build your log splitter, it is important to be cautious and prepared with all the safety considerations made.

  • Before you begin, it is important that you must be wearing appropriate safety attire. This applies true for both building as well as using your log splitter.
  • One of the important safety consideration is to have a hydraulic system including pressure relieve valve.
  • In order to keep the splitter clean and well maintained, it is important to have oil filter that keeps oil fueled to the splitter clean.
  • It is recommended that you should opt for a dual stage hydraulic oil pumping system. This system will save your time as you will be able to adjust between forces applied to two different pumping sections of the system. So as you will be splitting a log with one piston force, you will be prepared well to deal with the upcoming one.
  • It is important to make sure that the wedge is sharp and would be able to split logs well.
  • In case if you are unsure about building a log splitter, you should seek help of a professional with experience in this task.

Steps for Building

Step 1: Log splitter plans!

In order to build a log splitter, you should draw a proper plan for building. You can even find building plans available online and can purchase the one you find most appropriate. Basic components of a splitter include engine, oil pump and a pressure controlling valve.

Step 2: Build a structure for holding splitter!

Next step is the need of building a structure that can be easily transported and is capable of holding your log splitter well. This metal structure should have wheels so that you will be able to transport your log splitter with ease for varied jobs of log splitting at different remote locations.

Step 3: Begin building splitter!

Now that the base is set and you have made all the necessary preparations, you are now good to begin building your log splitter. Attach your 5 HP gasoline fueled engine with a dual stage hydraulic oil pump. The pump must be capable of pumping at least 3 gallons of fuel per minute at a speed of 2500 PSI. Also place the pressure valve on the hydraulic cylinder (around 24 inches in length and 4 inches diameter). This construction will used for powering a piston.

Step 4: Attach Hose with pump and valve!

Once you have pump and valve at their appropriate places, activating the pump will drive high pressure of fuel to valve. You would need to adjust the pressure with the help of a valve in order to have a complete control on splitting action. Connect hose to valve. As pressure will force the oil to move up to valve, it will power a piston and the cutting wedge thus would run in action for splitting a log. You need to weld all the pipe fittings in to fuel tank top as oil will be drawn from tank and will travel through hose to the pump.

Step 5: Trough for holding logs during the process of splitting!

Now arrange 2 angle iron pieces (5 feet long and 2.5 inches wide) in a way that 90 degrees of these pieces should touch. A steel bar (5 feet long and 2 inches wide) must be bridged with one of these angle iron pieces. Both the components must be placed in a way that they give you a space for placing logs during the process of splitting. The space should be angled at around 125 degrees.


Keeping in view all the key features that you need from a good log splitter, you will be able to design and build an appropriate machine for job to be done in less time consumed and physical stress. Having read all the relevant details and tips for making a log splitter, you must have realized that this machine is not really complicated one and it has some basic components only. You just need to analyze your requirements and make your preparations with all the necessary items that you would need during the process of building and you will be able to construct one such machine with ease. So get all the tools and parts in action and build your own log splitter to enjoy ease of splitting logs for varied jobs.