Standard Interior Door Thickness. The standard door thickness for interior doors is 1 ⅜ inches, though if your interior door is taller than 80 inches or wider than 36 inches, the recommended thickness by building codes increases to 1 ¾ inches. While others will tell you its 33mm or 38mm depending on what they have on their racks.
It needs to be a minimum of 80 inches (although some codes allow for 78 inch doors). As with size, door thickness varies from door to door, and for specific uses. When specified, stops for interior door frames shall be terminated above the floor 6″ (152.4 mm) standard, measured from frame bottom to bottom of terminated stop.
The Stop Is Cut At A 45° Or 90° Angle And Closed With A Steel Filler Plate Welded In Place.
Most interior doors are thinner than exterior. Doors that have a height of 80 inches are 6 foot, 8 inches. The chart below has a list of widths and heights and what those sizes are generally used for.
The Recommended Thickness For That Door Would Be 1 3/4 Inches.
The most common thickness for interior doors is 1⅜”. It needs to be a minimum of 80 inches (although some codes allow for 78 inch doors). Generally, internal door thickness tends to be 35mm for a standard door, but can go up to 40mm.
Code Generally Requires Interior Standard Door Sizes To Have A Certain Height.
This helps drive down the cost of a door, as having custom doors made is generally more expensive. Therefore the total thickness of an internal wall in most homes will measure four and a half inches. This is the most common interior door thickness and sometimes the only one stocked at home improvement stores.
The Minimum Recommended Door Width To Allow Persons With Disabilities’ To Pass Through Is 36 Inches.
Standard interior thickness is 1⅜ inches. Sometimes odd size doors can be present in period properties.the main difference being a door height increase of 2040mm and door thickness of 40mm. Standard interior doors usually vary between 35mm and 40mm in thickness.
The Thinnest Interior Door You Can Buy Is 1 3/8 Inches Thick, And The Thickest Is 1 3/4.
Interior doors are also available in 1 3 / 4 ” thickness. Other door thicknesses are available, such as 1½”, 1⅝”, and 1¾”. The standard door thickness for interior doors is 1 ⅜ inches, though if your interior door is taller than 80 inches or wider than 36 inches, the recommended thickness by building codes increases to 1 ¾ inches.