Aging myself, but back in the 80's most high schools in the county had Industrial Arts. Interested students could enroll in the class. I think it was also part of the arts rotation most kids took freshman year.

Parkland middle has a wood shop for some of their engineering classes.

https://www.montgomeryschoolsmd.org/schools/edison/about/

Edison is where students go for part-time programs in carpentry, automotive, and electrical

for mcps, it's mostly makerspace or robotics. not aware if they offer anything beyond that, but i hope someone can enlighten us

Rockville Science Center maker space (not school)

There are some engineering classes in HS that do a little.

I miss my public HS where all kids were required to do woodshop and metal shop

They used to offer in some MS and HS "back in the day."

Robotics teams fill this niche.

Look for First Robotics Lego League.

Sounds like boy scout has a ton of projects that your DC might be enjoying.

Do any MCPS middle or high schools still have woodworking or shop classes? My 5th grader is super into building stuff and I’d love to find a school that still offers something hands-on like that.