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Door Types and Configurations

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Configuration Types

• Single Door
• Double Door
• Door + Sidelite(s)
• With Transom

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.

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Glass Panel Styles (Lite Options)

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Configuration Width Calculation Reference

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Mermaid: Configuration Decision Flow