| A | : | Excellent - Few or no defects. |
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| B | : | Good - Minor defects in appearance. |
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| C | : | Average - Serviceable hull. Can make a decent combat ship but has some obvious and noticeable problems. |
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| D | : | Fair - Has major defects in scale shape and or volume. |
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| F | : | Poor - Probably a good idea to avoid. |
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| NR | : | Not rated. |
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| A | : | Excellent - Smooth and durable. |
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| B | : | Good - Can have a few small voids or minor defects. |
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| C | : | Average - Has some flaws and weaknesses (voids, excess gel, surface imperfections, etc.). |
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| D | : | Fair - Hull will probably need some work before building. |
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| F | : | Poor - Hull will need major work before building. |
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| NR | : | Not rated. |
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