Selecting the correct size for a door require an understanding of the dimensions of the door and the dimensions of the opening in the wall. If the door is too narrow for the opening in the wall, it will be difficult to move furnishings through the doorway. If the door is too wide for the opening in the wall, the door will take up valuable wall space within the room.
Therefore, the size of the door is an important specification for the rooms, as the size of the door can impact the function and the feeling of the rooms. In order to determine the appropriate size for a doorway, it is first important to understand the difference between the slab and the opening of the doorway. The slab is a panel of wood that will make up the door, and the opening is the hole that will be cut into the wall to accommodate the door slab and the door jambs.
How to Choose the Right Door Size
The opening must be wider than the slab; the jambs of the door must be accommodated within the opening, as do the shims that the builder will utilize to even out the door slab relative to the frame. Builders carve the opening to accommodate the jambs and drywall that will be installed adjacent to the door slab. Thus, the opening is always wider than the slab; if this width is not accounted for, the door will not open or latch proper.
Commonly made mistake is to assume that the width of the door slab is the same as the width of the opening. For instance, a door slab that is 30 inches in width will require an opening of 32 inches in width. The additional two inch are required by building codes for single doors.
Pocket doors require different calculation to determine the width of the opening that is required within the wall. For example, the opening must be wide enough to contain both the door slab and the track upon which the pocket door will slide. Barn doors are placed outside of the opening in the wall.
Thus, the track for the barn door must be longer than the opening in the wall. Additionally, accessibility into the rooms is another consideration in the determination of the size of the door. The clear width of the doorway is the width of the opening when the door is open to ninety degrees.
Thirty-two inches is the minimum required width for accessibility; thirty-six inches is the preferred width for new constructions. A thirty-six inch wide door slab provide additional space for the movement of those who use wheelchairs, and provides a feeling of spaciousness for those who enter the room. You must also consider the threshold height and the handle placement on the door because these two measurement has an effect based off whether the doorway creates a barrier or not.
Different rooms within a house require different width for their doors. For instance, bedrooms should have 32-inch doors because this width allows for the easy movement of laundry baskets and other furnitures within the bedroom. In contrast, bathrooms may require either 28-inch or 30-inch doors because bathrooms are generally small in size, and there is less traffic movement within bathrooms.
Closets may have narrow doors or bifold doors to save space within those small rooms. Entry doors should be wide to allow for the delivery of furniture to the home. Both entry doors should be this width to allow for the creation of the desired atmosphere within the doorway.
Finally, laundry rooms should have wide doors to allow for the movement of appliances within the laundry room without having to remove the doors from the door frames. Another consideration for door frames is the thickness of the wall. The thickness of the wall frame will determine the depth of the jamb.
Interior walls are generally framed with 2-by-4 studs, which requires a shallow jamb for the door frame. Exterior walls and walls that are soundproofed are framed with 2-by-6 studs, which creates the need for a deeper jamb. If the order for the door frame does not match the thickness of the wall stud framing, the casing will not be flush against the wall.
The casing will appear incorrectly when it is installed in the wall. The installation of the door is just as important as the size of the doorway. If the doorway opening is not plumb when installing the door, the door will bind or the gaps between the door and the frame will be even.
The header of the doorway should be level, and the hinge jambs should be plumb. Use shims at the door frame hinges to avoid the frame twisting when screws are driven into the frame. The height of the door is another measurement that must be chosen.
80-inch doors are the most common in homes as 80-inch doors allow for standard ceilings to be 8 feet high. Also, 80-inch doors are the most easily cost-estimated for homes. However, if a doorway within a room has higher ceilings than the rest of the home, a taller door will make the room within feel more spacious.
Yet, another consideration for the height of the door is that a wide door that is easy to use within the everyday life of the homes occupants is best. You should of considered the width too.
