Build me a brick wall!
Trumpscript, 303 285 244 231 226 bytes

make i 1000005-1000000
as long as,i;:
make i,i - fact;
say "_|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|"
say "___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|__"!
America is great


I would like to say this is one of the most verbose languages where almost everything fails to compile into a working program.

Apparently whether - works instead of minus is completely up to the interpreter and sometimes works. This time it did so I'm putting it in as golfed.

Abuses the fact Trumpscript is written in Python and therefore fact when used as an integer is one.

Golfing tips welcome.