Folded barn

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1. 

   1. Fold lengthwise in half

   Start white side up. Bring the top long edge down to the bottom long edge and fold in half.

2. 

   2. Mark the gable depth

   Fold the bottom edge up and unfold, taking both layers together. Place it 1 cm below the folded top edge to make a crease 3 cm below that top edge.

3. 

   3. Crease the upper corners

   Fold the upper left corner inward to the horizontal crease and unfold. Repeat at the upper right corner, taking both layers together each time.

4. 

   4. Crease the end-wall hinges

   At the point where the left diagonal meets the folded top edge, crease straight down and unfold. Repeat on the right, folding each outer 3 cm strip inward with both layers together.

5. 

   5. Tuck the left corner and open the wall

   Push the folded upper left corner inward while spreading the two layers below it apart. Reverse the diagonal triangles inside and open the endwall to a right angle with the middle wall.

6. 

   6. Open the right end too

   At the right end, tuck the upper corner inward and spread the two layers apart in the same way. Each end now has a triangular gable.

7. 

   7. Stand the barn upright

   Keep the folds in place and stand the whole model upright. The lower edges of the middle wall and both endwalls rest on the table. From above, it has an H-shaped plan.