How  to fold  the American Flag to a triangle in order to fit a Flag display case, Folding instruction for American flag if you need Folding instruction for American flag.

Step 1. Begin with the flag parallel to the floor. It is best to use two people when folding the flag.

Step 2. Fold the flag in half lengthwise, crossing the red stripes over the top of the blue square and stars.

Step 3. Holding the flag so that the side with the blue square is toward the ground, fold the flag in half again lengthwise, bringing the folded edge up to meet the open edge (as shown) so that the blue square and stars are on the outside.

Step 4. Starting with the striped end of the folded flag, fold the bottom corner up to meet the open edge of the flag creating a triangular shape.

Step 5. Fold the triangle section in towards the stars, aligning the outside edge along the top.

Step 6: Continue folding down and across in this manner until the final corner remains.

Step 7: Your final shape should be a blue triangle with stars on both sides.

To Summarize : 

To fold the American flag into a triangle shape to fit a flag display case, follow these step-by-step instructions:

Step 1: Begin with the flag parallel to the floor. It is recommended to have two people for this folding process.

Step 2: Fold the flag in half lengthwise, crossing the red stripes over the top of the blue square and stars.

Step 3: Hold the flag with the side containing the blue square facing downwards. Fold the flag in half lengthwise once again, bringing the folded edge up to meet the open edge. Make sure the blue square and stars are on the outside.

Step 4: Starting from the end with the stripes, fold the bottom corner up to meet the open edge of the flag, creating a triangular shape.

Step 5: Fold the triangular section in towards the stars, aligning the outside edge along the top.

Step 6: Continue folding down and across in the same manner, maintaining the triangular shape, until you reach the final corner.

Step 7: Your final result should be a tightly folded blue triangle with stars visible on both sides.

Ensure that the flag is neatly folded, with any loose edges or excess fabric tucked in, to achieve a clean and presentable triangle shape.

Now you can place the folded American flag into the flag display case, making sure the blue triangle with stars is facing outward. Close and secure the display case to protect the flag.

Remember, folding the American flag with care and respect is a way to honor its significance and display it in a dignified manner.