Getting corners square when building a deck is quite challenging. Although we don’t hope the corners to be perfectly square, it should be as square as possible.

Sometimes when you lay out tile or carpet, but unfortunately it is off from one side to another side of the room. In this case, you can take the 3-4-5 technique into consideration as it can help you absolutely!

Here are all about how to square a deck using the 3-4-5 method.

**3-4-5
Rule To Ensure Square Layouts**

Anyone wants to learn the way to square a deck should know the 3-4-5 method as many builders often use it to make sure they are building a square deck.

Speed squares and framing squares are helpful tools for using in construction, builders often use them to check the layout. However, if the layout is too large, they can’t help guarantee accurately.

Builders often use 3-4-5 technique for a number of major projects in remodeling and construction, such as laying a foundation or a wall to make sure the corners are square.

If you want know how to square a deck, you should pay attention to the materials required.

**Tools required to square a carpentry project are:**

What you have to prepare is just simple, you have already had it on your home.

1. A good tape measure – “Good” here means that it does not easily bend over when you pull it out.

2. A pencil or a sharper pen.

3. A helper – it can be hard work without assistant. You should find a partner, it can be a friend, your lover or neighbor.

**And it’s time we got to how to square a deck!**

**Using
3-4-5 Rules **

It is not very hard to build a deck, you just base on the 3-4-5 rules. This is a simple technique, it just requires the carpenter to create a right angle by connecting two legs of the triangle.

**A right triangle must consist
of:**

- The length of short triangle leg: 3 feet
- The length of another triangle leg: 4 feet
- The length of the longest leg: 5 feet

The 90 degree angle will be opposite the longest leg. Builders can also organize other multiple of the 3-4-5 rule to improve accuracy on building large walls or structure.

**These are
some examples of other multiple of the 3-4-5 rules:**

- 3-4-5
- 6-8-10
- 9-12-15
- 12- 16-20
- 15-20-25

**Why Is
This Technique Useful?**

The most recommended way to square a deck is the 3-4-5 method, so let’s get to know why does the 3-4-5 method create a perfect square corner?

Almost everyone knows the Pythagorean Theorem, which was discovered by Pythagoras – a mathematician. Every secondary student may know this theory, this is about the relationship between the squares on the two legs of the triangle and the longest legs. Pythagoras pointed out that the square on the hypotenuse is equal to the sum of the squares on the legs of a right triangle.

**What To
Do If the Last Measurement is Off?**

If you use the 3-4-5 method as a technique to square deck corners, you will have to make some adjustments in case the longest leg is off. What you need to do is moving one side, maybe move the other two leg in or out 3 or 4 feet.

**The
Bottom Line**

You know, squaring the corners is very important and essential if you want your projects to turn out the best. Some people use a framing square but it seem not very accurate since it is so small so that’s why we have to learn how to square a deck using a method called 3-4-5. And after reading useful tips about the 3-4-5 method for building a deck, I hope that you can do it on your own successfully.