Door handle wall guards are generally suitable for most types of doors, but their effectiveness and suitability can vary based on several factors. 
Firstly, the material and design of the door play a crucial role. Wall guards are typically compatible with wooden, metal, and composite doors, as these materials provide a stable surface for the installation of the guard. However, for glass doors, special considerations are needed to ensure that the guard does not interfere with the door's transparency or aesthetic appeal.
Secondly, the type of door handle is important. Wall guards are designed to protect walls from damage caused by door handles, so they are most effective with protruding handles like levers or knobs. For flush or recessed handles, wall guards may not be necessary or effective.
Thirdly, the location and usage of the door should be considered. In high-traffic areas, such as commercial buildings or busy households, wall guards can prevent frequent damage to walls. However, in less frequently used areas, the necessity of a wall guard may be reduced.
Additionally, the installation surface is a factor. Wall guards are typically installed on drywall, plaster, or similar surfaces. If the wall is made of a delicate material, such as wallpaper or fabric, additional care is needed to ensure the guard does not cause damage during installation or removal.
Lastly, aesthetic preferences and interior design considerations may influence the decision. Wall guards come in various styles and finishes, so choosing one that complements the door and surrounding decor is important.
In summary, while door handle wall guards are suitable for many types of doors, their appropriateness depends on the door's material, handle type, location, wall surface, and aesthetic considerations.