Arched Mosque Entrance Doors: Radius, Transom, Frame and Manufacturing

Arched mosque entrance doors connect the door package directly with the geometry of the facade. Unlike a rectangular opening, an arch cannot be described reliably with width and height alone. Radius, spring points, rise, frame depth and the relationship between the arch and any transom must be coordinated before manufacturing begins.

Define the arch geometry precisely

The shop drawing should state the clear opening width, total opening height, spring line and arch radius or other defining geometry. Segmental, semicircular, pointed and custom Islamic arches require different construction. A photograph or sketch is not enough for production.

Door leaf or fixed transom?

In some entrances the moving leaves extend into the arch. In others, rectangular leaves sit below a fixed arched transom. A fixed upper section can simplify hardware, reduce leaf weight and provide a natural zone for glazing, Islamic geometry or calligraphy.

Frame construction follows the curve

Curved frame members need stable fabrication and accurate templates. The frame must remain rigid enough to hold consistent leaf gaps while also matching stone, plaster or cladding around the opening. Large arches may require concealed reinforcement or segmented construction depending on design.

Coordinate the facade contractor

The door and facade teams should use the same approved arch geometry. Stone cutting, precast elements and timber frames can become incompatible when separate drawings use slightly different radii or spring points.

Carving and pattern placement

Geometric motifs and calligraphy should be composed around the arch rather than cropped from a rectangular design. Pattern scale should remain visually balanced at the crown and near the spring line. For calligraphy, wording should be approved before final CNC or hand carving.

Hardware for arched doors

The arch shape does not remove the need for conventional hardware engineering. Leaf weight, hinge position, lock height and closer geometry still depend on the moving portion of the door. If the upper arch is fixed, the transom connection must be coordinated with the main frame.

Site measurement checklist

• Opening width at spring line
• Total height
• Spring-line height
• Radius or arch template
• épaisseur du mur
• Finished floor level
• Facade finish thickness
• Interior and exterior photographs

For facade coordination, see our door and facade cladding guide after publication. For measurement fundamentals, review the mosque door dimensions guide.

Questions fréquentes

Is a fixed arched transom better than an arched moving leaf?

Neither is universally better. A fixed transom often simplifies heavy-door operation, while full-height arched leaves can create a distinctive architectural expression.

Can an arched door be made from walnut or oak?

Yes. Species choice should be coordinated with exposure, finish, structural construction and carving requirements.

Can an existing arch be copied from a template?

Yes, but the template should be verified against site dimensions and incorporated into an approved shop drawing before production.

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