> ## Documentation Index
> Fetch the complete documentation index at: https://help.yournewdoor.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Door Types and Configurations
> Single doors, double doors, sidelites, and glass panel styles — how each configuration changes sizing, quoting, and handing.
# Door Types and Configurations
Configuration determines sizing, handing reference, active panel location, astragal requirements, and total unit width. Always identify the full configuration before measuring or quoting.
A customer may call about "a door" but the actual product could be a single slab, a double door with an inactive leaf, a full unit with two sidelites, or a combination of all of the above. Each configuration has different sizing rules, handing logic, and product requirements.
## Configuration Types
One active slab in one frame. The most common residential configuration.
**Sizing:** The unit size is based on the single slab width + frame.
**Handing:** Referenced from the single active panel.
**Common applications:**
* Standard entry doors
* Interior passage doors
* Garage entry doors
* Back and side doors
On a single door, always confirm whether casing or brickmould is being included in the unit — this adds to the overall frame width and affects how the unit fits against the siding or drywall.
Two slabs in one frame — one active (with the operating lockset) and one inactive (with a flush bolt or surface bolt at top and bottom).
**Sizing:** Total unit width = both slab widths + frame. A "6068" unit has two 3068-equivalent slabs (or asymmetric active/inactive widths).
**Handing:** Referenced from the active panel only. The inactive panel's handing is implied by position.
**Active panel location:** Always clarify left or right.
**Astragal:** Required between the two slabs for weather seal and meeting edge.
When a customer says they need a 6-foot double door, always confirm: (1) which panel is active, (2) are the slabs equal width or asymmetric, and (3) does the unit include an astragal or overlap meeting style?
A main active door slab with one or two fixed glazed panels beside it. The sidelites do not operate — they are fixed in the frame.
**Sizing:** Total unit width = active slab + sidelite(s) + frame. **Never quote just the active door slab width for these units.**
**Configurations:**
* 1 active + 1 sidelite (right or left)
* 1 active + 2 sidelites (one each side)
**Handing:** Referenced from the active panel.
Always capture the sidelite width(s) separately from the door slab width. Sidelites are not always equal width, and they are not always the same width as the active panel.
A transom is a fixed glass or solid panel mounted above the door (and above sidelites if present). Transoms add height to the overall unit.
**Sizing:** Total unit height includes the transom height above the door slab. Total unit width may match the door + sidelite width below.
**Key questions to ask:**
* Is the transom fixed or operable?
* Does it span just the door or the full width including sidelites?
* Is glass style the same as the sidelites?
Transoms are often configured as a separate component from the door unit. Confirm whether the transom is part of the prehung assembly or a separate framed unit.
## Glass Panel Styles (Lite Options)
For every door with glass, the rep must capture the lite style. This affects price, privacy, energy performance, and aesthetics.
Glass from near top to near bottom. Maximum light transmission. Lowest privacy. Common on contemporary and craftsman-style entry doors.
Glass in the upper half of the slab. Balanced light and privacy. The most popular exterior door lite option in residential sales.
Glass covering approximately 3/4 of the slab. More light than half lite with moderate privacy.
Small glass panel at the top of the slab. Maximum privacy. Common in security-conscious or contemporary applications.
Small rectangular lites grouped near the top of the slab. Classic residential style. Multiple glass panes within a divided lite design.
No glass. Full privacy and maximum security. Common in utility entries, garage doors, and applications requiring R-value.
## Configuration Width Calculation Reference
| Configuration | How to Calculate Total Width |
| ------------------- | --------------------------------------------------- |
| Single door | Slab width + frame (approx. 2") |
| Double door | Both slabs + frame (approx. 2") |
| Door + 1 sidelite | Slab + sidelite + frame (approx. 2") |
| Door + 2 sidelites | Slab + both sidelites + frame (approx. 2") |
| All above + transom | Same width; add transom height to total unit height |
Frame component widths vary by manufacturer. The +2" approximation above is a general guide only. Always use manufacturer-specific sizing data when entering orders.
## Mermaid: Configuration Decision Flow
```mermaid theme={null}
flowchart TD
A[Customer Inquiry] --> B{Single or multiple openings?}
B --> |Single| C{Any glass panels beside door?}
B --> |Multiple| D[Quote separate units per opening]
C --> |No| E{Any glass above door?}
C --> |Yes| F[Door + Sidelite configuration]
E --> |No| G[Single Door]
E --> |Yes| H[Single Door + Transom]
F --> I{Glass on both sides?}
I --> |One side| J[Door + 1 Sidelite]
I --> |Both sides| K[Door + 2 Sidelites]
```
Walk every customer through this decision tree verbally before taking measurements. If the configuration changes mid-conversation, your dimensions from earlier may no longer apply.