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How to Make a Folding Machine

By Shopify API March 26, 2019

Here at Whitaker Brothers, we guarantee the best price listing for all of our paper folders. So, what's a better price than free? Learn  how to make your own homemade paper tri-folder with this simple step-by-step tutorial. >> Click Here to Jump to the Video!

  1. Materials:  a file folder, a ruler, scissors, scotch tape, and a pen. These items can be easily found in business offices.
  2. Using a ruler, draw a rectangle on the file folder. Outline the dimensions 8.525" x 11.025". We recommend using these dimensions for folding printing paper (standard printing paper dimensions are 8.5" x 11"). It is important for the brochure dimensions to be slightly bigger to avoid adding too much pressure on the triangular folds in step 5.
  3. Measure and label the panel divisions. Use the dimensions 3.5" for panel A, 4" for panel B, and 3.525" for panel C. It is important for panel B to be wider than the side panels to avoid overlapping the folds.  Also, we recommend to take advantage of the crease on the file folder - because there's already a pre-developed fold, we used the crease as a division between panels A and B.
  4. Cut out the rectangle once the measurements are done. Use the outline of the rectangle that you drew in Step 2 as a guideline. Do not throw away the file folder scraps yet! Use the remains for step 5 to create your pocket folds.
  5. Trace out four triangular folds, and cut them out. Use the remaining folder scraps to create the brochure folds. One way to draw them is by placing the scraps over the brochure corners to outline the fold edges. The best way to maintain straight lines is by using a ruler. If tracing is an issue, we recommend to use the dimensions: 1" x 1" x 1.5".
  6. Tape the folds on each corner of the tri-folder. The hypotenuse side of each triangular fold should face the inside of the tri-folder. Also, make sure to only tape on the edges of the brochure, not on the inside. These triangular folds will be used to insert and keep the paper in place. Make sure to use enough tape to avoid scabbing the paper in the sockets.
  7. Finally, form the creases where you marked the panel divisions. Voila!  

How to use your brochure folder

  1. Insert a piece of paper into the triangular folds. Make sure to flatten out the paper for a more precise fold.
  2. Fold panel A onto panel B, and then close with panel C. The harder you press on the panel folds, the sharper your paper folds will be.
  3. Take out your paper from the folds. Ta-da!


  1. This tri-folder can fold approximately 1-5 papers at once. If you fold more than five, you might have to take extra time to flatten the creases.
  2.  A file folder is a perfect medium to hold and fold paper. If you don’t have a file folder, try to avoid using material that’s not too flimsy or too hard. We have experimented with using other materials such as cardboard and the back of a notepad; however, we learned that it is more difficult to create precise folds with these materials.
  3. This product is great for not only creating business brochures, but also making birthday cards, valentine cards and decorations – the perfect way to have fun with your kids.
  4. The tri-folder can be easily stored away. Simply fold it up and put it away in a desk drawer to use again later.

Watch the Video!

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