You can't unless you build your own. Commercially available hollow core doors are manufactured with a cardboard "honeycomb" inside that makes the door stiff and keeps it from warping.
This is correct don't mess with the door. If it's drafts you want to cure fit excludes. If it's noise then confront your neighbors.
To repair a hole in a hollow core door pull off the pieces on the door and begin to sand down. After cleaning fill the hole with spray foam.
heat the other side of the door if you can & scrap off - it does work, we removed the insulation from aluminum sheeting that way
ya i have a double sided deadbolt in my bedroom door
They are about the same cost. Remember the door goes on much earlier with a hollow core than a wood veneer door. Before paint... that gives you a chance to adjust the opening and make sure the right frame is in the right opening.
You can use non-expanding base to fix a block inside a hollow core door to give the towel bar extra strength. Screws can also be used on the door to give the towel bar strength.
A solid slab is either solid concrete foundation or a flat solid wood door as opposed to a hollow core or a panel door.
You can put r11 insulation inbetween the studs before sheetrock. After that, not much you can do. Get a solid core door.
This would depend on the type used. In newer homes, soy or bio-based spray insulation is being used that is non-toxic and earth friendly. But that is nowhere near the norm. Most spray foam insulation is made from toxic chemicals and can be very harmful if ingested.
A standard hollow core door only has about 1 inch of wood at the bottom. 3/4 is about the most you can cut.
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.
It is hollow.