Figuring Out Angles to Build a Desk

[Bsxed]

Trying to build a desk. Have all the standard measurements but having issues figuring out what the angles I need for the support beams I have attached a drawing the blue circles are the angles that I need to figure out. Also I need to know how long my beam has to be before being cut(green line). I don't just want the answer, although it will be appreciated but I also want to know how to solve this problem in the future. Thanks in advance for all your help.

 

[tkhunny]

Two Questions:

1) Are you using standard 2x4s? It's important to note that they aren't really 2" x 4".

2) Your horizontal members are not sufficiently labeled. Are they the same size as the diagonal members?

 

[Bsxed]

Two Questions:

1) Are you using standard 2x4s? It's important to note that they aren't really 2" x 4".

2) Your horizontal members are not sufficiently labeled. Are they the same size as the diagonal members?

Standard 2x4s and there are no horizontal members just the diagonal I just added the one on the left to show that the desks height will be 26 inches when completed. Thanks for the reply.

 

[tkhunny]

There seems to be a small language problem. There are no VERTICAL members. There ARE Horizontal members.

2x4s tend to measure around 1½" x 3½". Sometimes, they are a bit larger. You must adjust your construction unless you are willing to plane to exact.

From your vertical 26", subtract a 2x4 from each end, (2x3.5") leaving 19" for the total Vertical Measurement of the crossed supports.

From your horizontal 18", subtract 2" from each end, leaving 14" for the total Horizontal Measurement of the crossed supports.

Okay, let's stop there and see if you are following.

Edit: I had the horizontal 2x4 turned the wrong direction. It's taller, now.

 

[CellCoree]

Hello there,

Building a desk can be a fun and challenging project! It's great that you have all the standard measurements, but it seems like you are having trouble figuring out the angles and length of your support beams. This is a common issue when building furniture, as every project is unique and requires some problem-solving.

To solve this problem, you will need to use some basic geometry principles. Let's start with the angles. The blue circles in your drawing represent the angles that you need to figure out. To determine these angles, you will need to use a protractor. Place the protractor on the corner of the beam where the angle needs to be measured. Then, line up the base line of the protractor with one side of the beam and read the angle where the other side intersects with the protractor. Repeat this process for each of the blue circles in your drawing.

Next, let's talk about the length of your beam. To determine the length, you will need to use the Pythagorean theorem. This theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In your drawing, the green line represents the hypotenuse of a right triangle. So, to find the length of your beam, you will need to measure the length of the other two sides (the sides that are attached to the blue circles) and then use the Pythagorean theorem to calculate the length of the hypotenuse.

Once you have determined the angles and length of your support beams, you can use these measurements to properly cut your beams and assemble your desk. In the future, if you encounter a similar problem, you can use these same principles to solve it.

I hope this helps you in building your desk. Good luck with your project!