Are your seam allowances always exactly the same?
When you are designing your products in our design labs, you will notice a lined area on the edge of the template that indicates the seam allowance (also called the bleed in graphic design). This area still needs to be covered with the design, but will be lost to some degree in the sewing of the item. The seam allowances vary between products and also change depending on how the garment is constructed.
On silk scarves, the seam allowance is roughly 1 cm all around the edge of the scarf. The final dimensions of the scarf may not be exactly as expected since the seam allowance is on the inside of the template. It is normal for example if you final scarf measures 15.5” by 71”.