Basics

A general term for materials used to:
- Make structural walls more aesthetically appealing
- Increase Insulation (Sound, Thermal, etc)
- Make adding temporary fixtures (Such as Posters, Framed Paintings, String Lights, and so on) via Pushtacks or Nails Easier
  - Especially relevant in Mass Wall Construction as unlike Framing based construction which until a covering is used (Typically Drywall ) it is Bare Studs and thus largely empty
  - So it is largely empty, then almost always covered by drywall'
Examples Include:
- Carpet (Think of that grey/black carpet used to cover the insides of vehicles etc)
- Plaster Board
- Paneling (Wood, Plastic, or Composite)
- Some sort of Laminated [Engineered Wood]] product such as Homasote , Masonite, etc

Most Common

At least according to (English USA) Google Search Results, "Drywall" seems to be the most common term and thus will be used in most cases to describe Plaster Board/Gypsum Board On-Wiki
Most USA Homes use Drywall over the Dimensional Lumber Framing to form walls
Drywall is a Sandwich Panel of sorts; A Layer of a Dried Plaster like material in between two pieces of paper
- There are sometimes with added Reinforcing Fibers (Such as in Glass Fiber Reinforced Gypsum) and Flame Retardant (Such as in Type C Fire Resistant Drywall
This is typically made with
- Pulped Paper Recycling based Paper Layers
- A Mix of
  - "New" Gypsum Powder
  - Recycled Gypsum
- Other additives

Recyclability
Gypsum seems to be VERY common and mined in quarries
Main issue with drywall seems to be it is hard to produce small scale?
It is fire-resistant (need to get more hard info)
- This does depend on Drywall Type and Other Design Aspects of the Building
  - ie most North American houses are not fireproof due to Standard/Pressure Treated Dimensional Lumber Framing, and has Paper Backing on both sides

A Thin Coat of Plaster, or Paint
Improves aesthetics, doesn't add much else, but is easy to do
Would make nails still not very practical (need to dig for info)
It can however also allow for:
- Use of magnets to attach things via Magnetic Primer
- Use of Textured Paint to allow for use of lower Drywall Finish Levels especially on areas such as Ceilings

Compared to Drywall, it is easier to make at a small Scale, the main issue is Flammability
MAY be able to use some sort of Flame Retardant in the mix, as is done with Fire Resistant Plywood
Also would work well with other needed workflows:

Cement Board (See Also/Merge With "Plaster Board" once that page is made?)
Laminated Ferrocement
Similar concepts, albeit only for aesthetics:
- Tile / Mosaics
- Stone Veneer / Stone Cladding
Similar Concepts but for Niche Uses:
- Acoustic Tiles
- Fixed Permanent Wall Radiation Shielding (Such as in a room for Medical X-Rays or Industrial CT Scanning among other things)