A solid slab is either solid concrete foundation or a flat solid wood door as opposed to a hollow core or a panel door.
wow this is a stupid question it has the crust mantle core inner core NOT HOLLOW
lumen
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a core
A hollow metal door is constructed of two face sheets of cold rolled steel sandwiching a core material. Typical core materials are polystyrene, cardboard honeycomb, fiberboard or urethane. A wood door can be solid wood stiles, rails and panels or two laminate sheets on a mdf core. Hollow metal doors are usually cheaper, but also usually only available in flush (a smooth slab). It was want a typical stile and rail door you should opt for wood.
Am asking the question
Nope....sorry
core, bore, hole,
It's makes the board lighter and also faster
a core sample
Exploration by drilling will result in a core sample. Brought up inside the hollow drilling tubes, the core sample is pushed out and is laid out for inspection and study.