Understanding What a Standard Size Interior Door Is

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An interior door that is considered “standard size” can vary based on the style and intended usage of the interior door. Standard doors used for residential purposes are usually 28, 30, or 32 inch widths but can also be found in single- or double-panelled versions ranging from 20” to 42” wide. Generally speaking, a standard size interior door should cover an opening with at least 2 inches of overlap on the sides and top. This is done to increase the overall durability and stability of the door so it won’t warp or move due to air pressure differences on either side. The height is usually 80 inches which allows it to reach to most ceiling heights without having any overhang below.

When selecting a standard size interior door there are certain other aspects that must also be taken into consideration beyond just the width and height. One should consider whether they need soundproofing materials as well as self-closing mechanisms and security locksets depending on your intended use. If you plan on having glass inlayed within your door then make sure you also include additional trim pieces for reinforcement along with proper insulation for added soundproofing capabilities if desired. Ultimately, being mindful of all these factors helps ensure you get a high quality finished product that does not just look aesthetically pleasing but will also perform reliably over time without needing unnecessary repairs or replacements down the line.