Installation of Frameless Door and Window Shutters - Code of Practice

IS 15345: Scope & Key Specifications for Frameless Door & Window Installation

Scope (Clause 1.5)

• Applies to frameless doors and windows installation without frames.
• Economical: Frames cost ~1.5-2% of house cost; frameless reduces this.
• Fixtures are simple, locally fabricable mild steel components.
• Suitable for ledged, braced, and battened timber shutters (per IS 6198).

Key Fixture Types & Dimensions

Fork Type Fixture (Clause 3.1.2)

• Fabricated from mild steel flat bent into U-shape clamp or single flat bracing with loop.
• Welded mild steel bar inside the bend.
• Holdfast: 16 mm dia mild steel pin bent as per Fig. 3B, embedded in masonry.

Important Tables

Table 1: Pivot Fixture Dimensions (mm)

Table 2: Fork Type Fixture Dimensions (mm)

IS 15345: Key References for Fork Type Fixtures & Pivot Fixtures

1. Fork Type Fixture (Clause 3.1.2 & Table 2)

• Material: Mild steel flat bent into U-shape clamp or single flat bracing with loop and pin.
• Holdfast:
  • Mild steel pin Ø16 mm bent (Fig. 3B, 3C).
  • Holdfast embedded in masonry/concrete.
• Dimensions (mm):

• Bracing loosely screwed initially, then firmly fixed after alignment.

2. Pivot Fixtures (Table 1)

• Dimensions for Light Door, Heavy Door, and Window pivots (all in mm):

3. Installation Notes (Clause 4.3)

• For frameless shutters, jambs must be rebited in masonry/plaster to cover gaps.
• Used for ledged, braced, and battened timber shutters (IS 6198).

Summary Diagram: Fork Type Fixture Assembly

graph LR
    A[Mild Steel Flat] --> B[U-Shaped Clamp]
    B

IS 15345: Fixtures for Frameless Doors and Windows

Types of Fixtures (Clause 3.1)

• Pivot Type (3.1.1)
• Fork Type (3.1.2)

Fork Type Fixture (Clause 3.1.2)

• Fabricated from mild steel flat bent into a U-shaped clamp.
• Mild steel bar welded inside the bend.
• Alternatively, a flat bracing with a loop and welded pin.
• Holdfast: 16 mm dia mild steel pin bent as per Fig. 3B, embedded in wall.
• Dimensions as per Table 2 (refer IS 15345 Fig. 3 & 4).

Pivot Fixture Dimensions (Table 1 from Clause 3.1.1)

IS 15345: Pivot Type Fixtures Summary

1. Components (Clause 3.1.1)

• Pivot: Fabricated from angle iron or welded mild steel flats forming an 'L' bracket.
  • Mild steel bar welded to shorter leg.
  • Screw holes on longer leg for shutter fixing.
• Socket: Made by welding G.I. pipe over mild steel square plate.

2. Fixing Location

• Door shutters: Fixtures at corners.
• Single leaf window shutters: Corner or center.
• Double leaf windows: Corners only.

3. Key Dimensions (Table 1, mm)

4. Reference Figures

IS 15345: Pivot Type Fixture Details (Clause 3.1.1 & Table 1)

The pivot fixture consists of:

• Pivot: Fabricated from angle iron or welded mild steel flats forming an 'L' bracket. A mild steel bar welded on the shorter leg; screw holes on the longer leg for shutter fixing.
• Socket: Made by welding G.I. pipe over a mild steel square plate.

Key Dimensions (in mm) for Pivot Fixtures (Table 1)

Specifications:

• Fixtures fixed at corners for door shutters.
• For single leaf windows, fixtures may be at corners or center.

IS 15345: Alternative Pivot Type - Key Details

1. Alternative Pivot Type (Clause 3.1.1.1)

• Alternative pivot fixtures can be used as per Fig. 2 (not shown here).
• It is a variation of the standard pivot type fixture described in Clause 3.1.1.

2. Pivot Type Fixture Components (Clause 3.1.1)

• Pivot: Fabricated from angle iron or welded mild steel flats forming an 'L' bracket.
• Socket: Made by welding a G.I. pipe piece over a mild steel square plate.
• Screw holes provided on longer leg of pivot for shutter fixing.
• Dimensions for pivot and socket for light/heavy doors and windows are in Table 1.

3. Table 1: Dimensions for Pivot Fixtures (mm)

IS 15345 - Fork Type Fixtures Summary

Fabrication (Clause 3.1.2)

• Made from mild steel flat bent into a U-shaped clamp.
• Mild steel bar welded inside the U-bend (Fig. 3A).
• Alternative: Single mild steel flat bracing with one edge looped and a pin welded inside.
• Wooden batten used on the opposite shutter face.

Holdfast (Fig. 3B & 3C)

• U-shaped clamp: 16 mm dia. mild steel pin bent as per Fig. 3B, embedded in masonry.
• Flat bracing: Mild steel flat with split bent edges and a hole for the pin.

Dimensions (Refer Table 2 with Fig. 3 & 4)

• Specific dimensions for forks, pins, and bracing components.
• Pins: 16 mm diameter.
• Bracing flat sizes and lengths per figures.

Installation (Clause 4.2)

• Holes on fork/bracing at specified spacing (Fig. 3D).
• Groove cut in shutter edge to house bent bracing portion—prevents gaps.
• Holdfast embedded in masonry during construction.
• Bracing loosely screwed initially, then firmly after alignment.
• Two bracing-cum-hinges per door (top & bottom).

Quick Reference Table: Fork Type Holdfast Pin

Conceptual Diagram (Mermaid.js)

graph LR
A[Mild Steel Flat] --> B[U-shaped Bend]
B --> C[Mild Steel Bar Welded Inside]
C --> D[Holdfast Pin (16 mm dia.)]
D --> E[Embedded in Masonry]
F[Wooden Batten] -- Opposite face --> C

Note: Refer to IS 15345 Fig. 3 & 4 and Table 2 for exact dimensions and spacing for different shutter types.

IS 15345: Installation of Fixtures - Key Specifications

1. Pivot Type Fixtures (Clauses 3.1.1 & 4.1)

• Components: Pivot (L-shaped bracket with welded MS bar) + Socket (GI pipe welded on MS plate).
• Fixing: Pivot screwed firmly to shutter; fixtures at corners for doors, corners or center for single leaf windows, corners for double leaf windows.
• Dimensions (mm) from Table 1:

2. Fork Type Fixtures (Clauses 3.1.2 & 4.2)

• Fabrication: Mild steel flat bent into U-shaped clamp or loop with MS bar pin inside.
• Holdfast: MS pin (16 mm dia) bent and embedded in masonry.
• Installation: Groove cut in shutter edge to house bent bracing; holdfast embedded in concrete; bracing loosely screwed, then firmly after alignment.
• Spacing: As per Fig. 3D (refer IS 15345 for detailed spacing).

Installation Notes:

• Ensure smooth operation by proper alignment.
• Use **MS welding

IS 15345: Pivot Type Fixture Installation - Key Details

Components (Clause 3.1.1)

• Pivot: Fabricated from angle iron or welded mild steel flats forming 'L' bracket.
• Socket: Made by welding G.I. pipe over mild steel square plate.
• Fixing: Screw holes on longer leg of pivot for shutter attachment.

Fixture Location (Clause 4.1)

• Door shutters: Fixtures at corners.
• Single leaf window: Corner or center.
• Double leaf window: Corners only.

Dimension Table for Pivot Fixtures (Table 1, Clause 3.1.1)

IS 15345 - Fork Type Fixture Installation Key Points

Fabrication (Clause 3.1.2)

• Material: Mild steel flat bent into U-shaped clamp.
• Reinforcement: Mild steel bar welded inside the bend.
• Alternative: Single mild steel flat with one edge looped + mild steel bar pin inside loop.
• Holdfast:
  • For U-shaped clamp: 16 mm diameter mild steel pin bent as per Fig. 3B, embedded in wall (Fig. 3C).
  • For flat bracing: Mild steel flat with split bent edges and hole for pin.

Dimensions (Refer Table 1 for pivot fixtures, applicable for fork type components where relevant):

Installation (Clause 4.2)

• Holes on fork/bracing at specified spacing (Fig. 3D).
• Groove cut in shutter edge to house bent bracing, avoiding gaps.
• Holdfast embedded in masonry during construction.
• Bracing loosely screwed initially, aligned so pin fits holdfast hole.
• Two bracing-cum-hinges per door shutter (top & bottom).
• After alignment and smooth operation check, bracing is firmly screwed.

Summary Diagram (Fork Type Fixture Installation)

graph LR
A[Mild Steel Flat Bent U-Shape] --> B[Welded Mild Steel Bar Inside Bend]
B --> C[Holdfast: 16mm Pin Bent & Embedded in Wall]
C --> D[Holdfast Hole Houses Pin in Groove Cut in Shutter]
D --> E[Bracing Loosely Screwed Initially]
E --> F[Shutter Aligned & Operated Smoothly]
F --> G[Bracing Firmly Screwed]

Note: Refer IS 15345 Fig. 3A, 3B, 3C, 3D and Table 2 for exact dimensions and detailed fabrication drawings.

Fixing to Jambs — Fork Type Fixtures (IS 15345)

Key Specifications:

• Fork Type Fixture: Made from mild steel flat bent into U-shape clamp or single flat bracing with a loop and pin (Clause 3.1.2, Fig. 3A).
• Holdfast: Mild steel pin 16 mm dia bent as per Fig. 3B, embedded in masonry/concrete (Fig. 3C).
• Fixing: Fork holes spaced as per Fig. 3D; groove cut in shutter edge to house bent bracing and holdfast pin (Clause 4.2).
• Shutter Fixing: Bracing loosely screwed initially, aligned over holdfast pin, then firmly screwed after operation check (Clause 4.2).
• Jamb Rebating: Required for frameless shutters to cover gaps between shutter edge and jamb (Clause 4.3).

Table: Dimensions of Fork Type Fixture Components (Excerpt from Table 2)

Installation Sequence

flowchart TD
    A[Prepare Fork Clamp & Holdfast] --> B[Cut Groove on Shutter Edge]
    B --> C[Embed Holdfast in Masonry]
    C --> D[Loosely Screw Bracing to Shutter]
    D --> E[Align Shutter Over Holdfast Pin]
    E --> F[Check Smooth Operation]
    F --> G[Firmly Screw Bracing to Shutter]

Summary: Fork type fixtures use mild steel clamps with embedded holdfast pins fixed in masonry. Proper groove cutting and jamb rebating ensure no gaps. Dimensions and installation steps are standardized for reliable shutter fixing.

IS 15345: Installation of Frameless Door and Window Shutters – Key Details on Fork Type Shutter Fixtures

Fork Type Fixture (Clause 3.1.2 & 4.2)

• Material: Mild steel flat bent into U-shaped clamp or single flat bracing with loop.
• Holdfast: Mild steel pin Ø16 mm bent as per Fig. 3B, embedded in wall (Fig. 3C).
• Bracing: Loosely screwed initially, final fixing after alignment and smooth operation check.
• Groove: Cut in shutter edge for bracing to avoid gaps.

Table 1: Dimension Details for Pivot Fixtures (mm)

IS 15345: Dimensional Details & Tables for Fixtures

1. Pivot Type Fixture Dimensions (Table 1, Clause 3.1.1)

2. Fork Type Fixture Dimensions (Table 2, Clause 3.1.2)

| Component | Total Length (mm) | a | b | c | t (thickness mm) | d (pin dia mm) | f | g | Bracing Length (mm) | a+ | b | c | l | d | e | |-----------------|----------------

IS 15345: Operational Checks and Alignment for Fixtures

Key Specifications & Tables

1. Pivot Type Fixtures (Clause 3.1.1 & Table 1)

• Consists of Pivot and Socket.
• Pivot: L-shaped bracket from angle iron or welded flats; mild steel bar welded on shorter leg.
• Socket: G.I. pipe welded on mild steel square plate.
• Dimensions (mm) for Light/Heavy Door & Window:

2. Fork Type Fixtures (Clause 3.1.2 & 4.2)

• Fork fabricated from mild steel flat bent into U shape with welded mild steel bar inside bend.
• Holdfast: 16 mm dia mild steel pin bent as per Fig. 3B, embedded in

IS 15345: Materials and Fabrication Key Points

1. Fork Type Fixtures (Clause 3.1.2 & 4.2)

• Fabricated from mild steel flat bent into U-shaped clamp or single flat bracing with loop.
• Mild steel bar welded inside the bend or loop.
• Holdfast:
  • U-shaped clamp uses 16 mm dia mild steel pin bent as per Fig. 3B, embedded in wall (Fig. 3C).
  • Flat bracing holdfast fabricated from mild steel flat with split bent edges and hole for pin.
• Bracing holes at specified spacing (Fig. 3D).
• Bracing loosely screwed initially, then firmly after alignment.
• Holdfast embedded in masonry/concrete during construction.

2. Pivot Type Fixtures (Clause 3.1.1)

• Pivot: angle iron or welded mild steel flats forming 'L' bracket with welded mild steel bar.
• Socket: G.I. pipe welded to mild steel square plate.
• Dimensions per Table 1 (all in mm):

3. Dimensions of Fork Type Components (Table 2, Clause 3.1.2)

• Total length for double/single clamps: typically 900 mm.
• Thickness (t):