Writing a product specification a factory can quote on
Materials, dimensions, finishes, packaging and tolerances: the details that make quotes comparable.
Materials and finishes
Name the material, grade and finish rather than describing how it should look.
Dimensions and tolerances
State the acceptable range, not just the target number.
Packaging is part of the spec
Carton size, labelling and inner packing affect both cost and damage rates.
Quotes are only comparable when the questions are the same.
