2 formula options listed.
Navy rating guide
BU Builder ASVAB score requirements
Score target and study focus for Navy BU.
BU
Navy rating score brief
Builder
ASVAB score targetAR+MC+AS 145+ or 1 more
Builds and repairs structures, concrete, woodwork, and field construction projects.
Good fit if you want practical construction work with field problem-solving and technical skills.
Construction trades, heavy equipment, electrical work, utilities, surveying, welding, and field engineering.
Study first
Focus these areas
Arithmetic ReasoningMechanical ComprehensionAuto InformationShop InformationWord KnowledgeParagraph ComprehensionMath KnowledgeAssembling Objects
- Start with arithmetic reasoning, mechanical comprehension, auto information, shop information; those subjects show up directly in the listed Navy formula options.
- Keep AFQT fundamentals steady too: arithmetic reasoning, math knowledge, word knowledge, and paragraph comprehension.
Daily work
What you may do
- Build, repair, operate, or maintain construction systems in field and deployment settings.
- Use tools, plans, safety procedures, and practical math to support construction missions.
BU Navy rating FAQ
Common Builder ASVAB questions
What ASVAB score do you need for Navy BU Builder?
AR+MC+AS 145+ or VE+AR+MK+AO 209+ is the planning target shown on this MeritMarch guide. Treat it as study guidance, not a contract promise, because Navy rating access, openings, waivers, medical qualification, and recruiter guidance can change.
What does a Navy BU Builder do?
Builds and repairs structures, concrete, woodwork, and field construction projects.
Which ASVAB sections should I study for BU?
Start with the subjects behind the listed formula options: Arithmetic Reasoning, Mechanical Comprehension, Auto Information, Shop Information, Word Knowledge, Paragraph Comprehension, Math Knowledge, Assembling Objects. If your AFQT is not stable yet, keep Arithmetic Reasoning, Math Knowledge, Word Knowledge, and Paragraph Comprehension in the plan too.
Is BU guaranteed if I meet the score target?
No. ASVAB scores are only part of Navy rating access. Current openings, medical standards, citizenship, security screening, education rules, waivers, and Navy needs can all affect whether a rating is available.
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Sources and official confirmation
Formula target shown on this page: AR+MC+AS 145+ or VE+AR+MK+AO 209+. Current Navy rating access still depends on Navy policy, openings, medical qualification, background screening, waivers, citizenship, and recruiter guidance.
Sources reviewed May 9, 2026: Navy careers, Official ASVAB military-jobs composites, NavyCS rating ASVAB score table, NavyCS Nuclear Power Test reference.