Asymmetric “Mother and Child” Door

Description

Overview

The Asymmetric “Mother and Child” Door is an unequal double-door system featuring a wider primary leaf (“mother”) for everyday transit and a narrower secondary leaf (“child”) that unlatches to widen the entryway on demand. Combining balanced functionality with architectural presence, it suits wide interior passageways, transitional living-dining areas, and formal entrance foyers.

The configuration pairs a glazed main leaf with a solid wood-paneled secondary leaf, delivering natural light penetration while maintaining privacy and structural depth.

Technical Specifications

• Door Configuration: Unequal double leaf (Asymmetric swing pair)

• Standard Leaf Ratio:

  • Primary leaf (“Mother”): 800 mm – 900 mm

  • Secondary leaf (“Child”): 400 mm – 500 mm

  • Combined opening width: 1200 mm – 1400 mm

• Door Thickness: 40 mm – 45 mm

• Face Construction: Warm natural walnut or teak wood veneer with multi-lite glazed glass inserts on the main leaf and solid matching stile-and-rail panels on the secondary leaf

• Glazing: 8 mm tempered frosted, fluted, or clear architectural safety glass

• Jamb & Architrave: Heavy-duty reinforced double-rebated timber jamb with matching telescopic architraves and perimeter acoustic cushioning seals

Hardware & Mechanism

• Primary Lockset: Euro-profile mortise sash lock with magnetic latch mechanism and ergonomic lever handles

• Secondary Leaf Securing: Top and bottom concealed flush bolts (manual lever or automatic rebound) recessed into the leaf edge to keep the narrow leaf firmly anchored when not in use

• Hinges: Heavy-duty stainless steel ball-bearing hinges (3 to 4 pairs per leaf depending on overall height)

• Rebate Integration: Integrated rebated meeting stile with sound/draft seal to eliminate light bleed between leaves

Key Advantages

• Flexible Clearance: Accommodates large furniture, bulky equipment, or high-traffic movement by easily engaging both doors without requiring oversized daily swinging clearances.

• Daylight Optimization: The glazed primary leaf channels ambient natural light deep into windowless hallways or corridors while keeping rooms visually linked.

• Grand Architectural Scale: Fills wider wall openings more elegantly than a standard oversized single door, avoiding excessive swing-arc intrusion into the room layout.