IS 104281983AI Search Enabled✦ AI Generated

Glossary of terms relating to doors
1983 Edition

The IS 10428:1983 standard offers an extensive glossary defining terms connected to hinged and pivoted doors utilized in building projects. It establishes uniform language for door parts, sizes, and structural openings to enhance clarity among professionals in design, production, and installation of doors. This code is crucial for engineers, architects, and construction experts working with doors of diverse materials.

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Overview

What This Standard Covers

The IS 10428:1983 standard offers an extensive glossary defining terms connected to hinged and pivoted doors utilized in building projects. It establishes uniform language for door parts, sizes, and structural openings to enhance clarity among professionals in design, production, and installation of doors. This code is crucial for engineers, architects, and construction experts working with doors of diverse materials.

Audience

Who Uses This Standard

  • Structural Engineers
  • Building Designers
  • Door Fabricators
  • Project Supervisors
  • Site Inspectors
  • Interior Architecture Professionals
  • Quality Assurance Specialists

Contents

Key Topics Covered

✓Terminology for hinged and pivoted door systems
✓Definitions of door parts and elements
✓Concepts of structural openings and reveals
✓Varieties and characteristics of door frames
✓Door and frame dimensions and allowances
✓Details of rebated and non-rebated door designs
✓Attributes of door leaves
✓Dimensional coordination for door fitting
✓Hardware terminology and assembly language
✓Illustrative diagrams of door-related terms
✓Standardized measurement practices

Structure

Table of Contents

1Scope and Fundamental Specifications▼

IS 10428 outlines the terminology and definitions related to steel doors, windows, ventilators, and partitions, emphasizing dimensional and component details.

Key Definitions include:

  • Structural Opening: The void within a wall or partition designed to accommodate a doorset.
  • Structural Reveal: The edge of the opening, which may be rebated or non-rebated.
  • Vertical Side: The vertical edges of the door opening.
  • Structural Rebate: The recessed step for fitting the door.
  • Rebate Depth and Width: Measurements defining the rebate size.
  • Finished Floor: The reference floor level.

Clearances:

  • Joint clearance: The gap between door frame and door leaf.
  • Clearance between door leaf and finished floor: Ensures smooth door movement and protects flooring.

Dimensional Coordination involves modular and non-modular sizes for wall openings to standardize door installation.

Typical Dimensional Symbols:

SymbolMeaning
1Structural Opening
1aNon-rebated reveal opening
1bRebated reveal opening
11Structural Reveal
15Structural Rebate
16Rebate Depth
17Rebate Width
jJoint Clearance (frame to leaf)
kClearance (leaf to floor)

Visual Diagram (Mermaid syntax) illustrates relationships among these terms.

This section ensures standardized door opening dimensions with proper clearances for installation per IS 10428.

2General Terminology and Definitions▼

This section defines essential terms regarding door components and dimensions.

Component Terms:

  • Structural Opening: Void in wall or partition for door installation.
  • Structural Opening Types: Non-rebated and rebated reveals.
  • Structural Reveal: The edge of the opening (rebated/non-rebated).
  • Vertical Side: Upright edges of the opening.
  • Structural Rebate: The step or recess around the opening.
  • Depth and Width of Rebate: Dimensions of the rebate.

Dimensional Terms:

  • Symbols combining letters and numbers indicate work sizes.
  • Joint clearance (j): Gap between door frame and door leaf.
  • Clearance to finished floor (k): Gap between door leaf and floor level.

Annex includes illustrations displaying structural openings, door frames, and modular size coordination.

Summary Table:

SymbolDescription
jJoint clearance (frame to door)
kClearance (door leaf to floor)
15Structural rebate
16Rebate depth
17Rebate width

Diagrammatic representation aids comprehension of door opening and clearance concepts as per IS 10428.

2.1Component-Related Terminology▼

Key terms and measurements concerning door components are outlined here.

Structural Opening: The cavity in a wall or partition intended for door placement.

Types of Structural Openings:

  • Non-rebated reveal
  • Rebated reveal

Structural Reveal: The reveal can be either rebated or non-rebated.

Vertical Side: The vertical edges of the opening.

Structural Rebate: A step or offset in the frame for door seating.

Rebate Depth and Width: Dimensions specifying rebate size.

Finished Floor: The floor level used to measure clearance beneath the door leaf.

Dimension Terms:

  • Joint clearance (j): Space between frame and door leaf.
  • Floor clearance (k): Gap between door leaf and finished floor to prevent rubbing.

Illustrations display structural openings with reveals, door frames relative to walls, and modular sizes for coordination.

Summary Table:

TermDescription
Structural OpeningOpening in wall
Structural RevealRebated or non-rebated reveal
Rebate Depth (16)Depth of rebate groove
Rebate Width (17)Width of rebate groove
Joint Clearance (j)Gap between frame and door leaf
Floor Clearance (k)Gap between door leaf and floor

Visual diagram depicts the relationships among these elements, assisting in standardizing door component design.

2.1.1Structural Opening Terminology▼

This subsection addresses important terms related to structural openings.

Structural Opening: The void in walls or partitions meant to receive doorsets.

Types:

  • Non-rebated reveal
  • Rebated reveal

Key Dimensions:

  • Vertical Side (13): Vertical edges of the opening.
  • Structural Rebate (15): The step in the reveal.
  • Rebate Depth (16) and Width (17): Define the rebate size.
  • Finished Floor (18): Reference for vertical clearance.

Door Frame Types:

  • With rebate
  • Without rebate
  • With transom

Key Frame Dimensions:

  • Door frame reveal (20)
  • Rebate depth (26)
  • Rebate width (27)

Additional Dimensions:

SymbolDescription
CCoordinating thickness from opening to frame
C1Depth of structural reveal
C2Thickness of door frame or doorset
fCoordinating depth between frame and door leaf
f2Reveal depth of door frame
f3Door leaf thickness inside frame
f'3Door leaf thickness including lipping
jJoint clearance (frame to leaf)
kClearance from door leaf to finished floor

Notes:

  • Rebate is a groove or step allowing door to close flush.
  • Joint clearance ensures smooth door operation.
  • Floor clearance prevents door-floor contact.

Mermaid diagram illustrates the relationships among structural opening, reveal, frame, leaf, and clearances.

2.1.2Door Frame Terminology▼

This part defines terms related to door frames.

Door Frame: The structure supporting the door leaf.

Types:

  • With rebate: Frame with stepped edge for door seating.
  • Without rebate: Simple frame without rebate.
  • With transom: Frame including a horizontal bar above the door.

Rebate Dimensions:

  • Depth of rebate (26)
  • Width of rebate (27)

Door Frame Reveal (20): The visible frame portion, rebated or non-rebated.

Frame Styles:

  • Butt type: Designed for butt-hinged doors.
  • Wrap-around type: Frame with trim wrapped around wall edges.

Dimensional Clearances:

  • Joint clearance (j): Gap between door leaf and frame.
  • Floor clearance (k): Space between door leaf and finished floor.

Typical Dimensions:

ParameterRange (mm)
Depth of rebate12 - 20
Width of rebate20 - 30
Joint clearance (j)2 - 4
Floor clearance (k)10 - 20

Mermaid diagram visualizes types and dimensions of door frames.

2.1.3Door Terminology▼

This section covers terms related to the doors themselves.

Internal Door: Door with both faces inside the building.

External Door: Door with at least one face exposed outdoors.

Square Edge Door: Door leaf with square edges.

Rebated Door: Door leaf with a stepped edge overlapping the frame.

Overpanels:

  • Square edge overpanel
  • Rebated overpanel

Door Frames:

  • With rebate
  • Without rebate
  • With transom

Dimensions:

  • Door frame reveal
  • Rebate depth and width

Frame Types:

  • Butt type
  • Wrap-around type with trim

Clearances:

  • Joint clearance (j)
  • Clearance to finished floor (k)

Summary Table:

TermSymbolDescription
Joint clearancejGap between door leaf and frame
Floor clearancekGap between door leaf and floor
Depth of rebate26Rebated frame depth
Width of rebate27Rebated frame width

Mermaid diagram shows door frame and rebate relationships.

2.2Dimension-Related Terminology▼

This segment elaborates on dimensional terms and notation.

Work sizes are represented by letter-number combinations (e.g., A1, A2).

Key Symbols (Clause 2.2.4):

SymbolDescription
jJoint clearance (gap between door frame and leaf)
kClearance between door leaf and finished floor

Structural Opening Details:

  • Types: Non-rebated and rebated reveals.
  • Key dimensions: Structural reveal, vertical side, rebate width and depth, finished floor.

Typical Dimension Descriptions:

TermExplanation
Structural rebateStep or offset in opening edge
Rebate depthThickness of rebate groove
Rebate widthHorizontal measurement of rebate

Mermaid diagram summarizes the dimensional relationships.

These terms standardize door and frame sizes for modular coordination.

2.2.1Height Coordination▼

This subsection details height-related dimensions and coordination.

Symbols and their meanings:

SymbolDescription
A1Height of structural reveal
A2Height of door frame or doorset
dCoordinating height between door frame and door leaf
d2Door frame reveal height
d'2Clear opening height
d3Height of door leaf inside frame
d'3Overall door leaf height including lipping

Other Dimensions:

SymbolDescription
jJoint clearance (frame to leaf)
kClearance between door leaf and finished floor

Width and Depth Dimensions:

SymbolDescription
B1Width of structural reveal
B2Width of door frame or doorset
eCoordinating width between frame and leaf
e2Door frame reveal width
e3Width of door leaf inside frame
gWidth of rebate
C1Depth of structural reveal
C2Door frame thickness
fCoordinating depth between frame and leaf
f2Door frame reveal depth
f3Door leaf thickness inside frame
f'3Door leaf thickness with lipping

Notes:

  • Coordinating heights ensure proper fitting.
  • Clear opening height is critical for usability.
  • Joint clearance usually 2-5 mm.
  • Floor clearance usually 10-20 mm.

Mermaid diagram visualizes these relationships.

2.2.2Width Coordination▼

This section explains formulas and terms for width coordination.

Terminology:

SymbolDescription
B1Width of structural reveal
B2Width of door frame or doorset
eCoordinating width between frame and door leaf
e2Door frame reveal width
e2'Clear opening width
e3Width of door leaf inside frame
e3'Door leaf width including lipping
gWidth of rebate

Key Relationships: Coordinating width (e) is calculated as: e = e2 + e3 + j Where j is joint clearance.

Clear opening width: e2' = e2 - g

Structural reveal width: B1 = B2 + 2 × wall thickness allowance

Joint clearances: j = 2-4 mm k = 10-20 mm

Summary Table:

ParameterTypical Value
j2-4 mm
k10-20 mm
gVaries
e3'Door leaf width plus lipping

Mermaid diagram illustrates these width parameters.

2.2.3Depth and Thickness Specifications▼

This part describes depth and thickness measurements.

Symbols and meanings:

SymbolDescription
CCoordinating thickness between opening and door frame
C1Depth of structural reveal
C2Door frame or doorset thickness
fCoordinating depth between door frame and leaf
f2Door frame reveal depth
f3Door leaf thickness inside frame
f'3Door leaf thickness including lipping

Additional dimensions:

SymbolDescription
jJoint clearance between frame and door leaf
kClearance between door leaf and finished floor

Height Dimensions:

SymbolDescription
ACoordinating height between opening and door frame
A1Height of structural reveal
A2Height of door frame or doorset
dCoordinating height between door frame and leaf
d2Door frame reveal height
d'2Clear opening height
d3Height of door leaf inside frame
d'3Door leaf height with lipping

Notes:

  • Structural opening is the void for doorset.
  • Rebated and non-rebated reveals differ in reveal depth.
  • Typical joint clearance is 3-5 mm.
  • Floor clearance usually 10-20 mm for ventilation.

Mermaid diagram depicts these depth and thickness relationships.

2.2.4Additional Dimensional Parameters▼

Focuses on supplementary dimensional details.

Joint Clearances:

  • j: Gap between door frame and door leaf, facilitating smooth operation and accommodating expansion.
  • k: Gap between door leaf and finished floor, preventing contact and allowing floor finishes.

Dimension Symbols:

SymbolDescription
A1Height of structural reveal
A2Height of door frame or doorset
dCoordinating height between frame and leaf
d2Door frame reveal height
d'2Clear opening height
d3Door leaf height inside frame
d'3Door leaf height including lipping
B1Width of structural reveal
B2Width of door frame or doorset
eCoordinating width between frame and leaf
e2Door frame reveal width
e'2Clear opening width
e3Door leaf width inside frame
e'3Door leaf width including lipping
gWidth of rebate groove in frame

Notes:

  • These dimensions promote modular coordination in manufacturing and installation.
  • Joint clearances j and k are vital for door performance and durability.

Mermaid diagram demonstrates the dimensional flow from structural opening to clearances.

AnnexVisual Representation of Terms▼

This annex provides illustrations clarifying key terms.

Structural Openings:

  • Void in wall or partition for door installation.
  • Types: Non-rebated reveal, Rebated reveal.
  • Structural Reveal: Visible edge of opening, either rebated or non-rebated.
  • Vertical Side: Upright sides of opening.
  • Structural Rebate: Groove or step in reveal for door fitting.
  • Rebate Depth and Width: Dimensions of groove.
  • Finished Floor: Reference floor level relative to door leaf.

Dimensional Terms:

  • j: Joint clearance between door frame and door leaf.
  • k: Clearance between door leaf and finished floor.

Modular and Non-Modular Sizes:

  • Structural openings and door frames designed with modular coordination.

Summary Table:

SymbolDescription
jJoint clearance (frame to door leaf)
kClearance between door leaf and floor
15Structural rebate
16Rebate depth
17Rebate width

Mermaid diagram visually connects structural opening to reveals, rebates, frames, and clearances.

This illustration aids in understanding door openings and frame terminology as per IS 10428.

Frequently Asked

Popular Questions About IS 10428

?What are the standard terms for different types of door frames according to IS 10428?▼

IS 10428:1983 identifies various standardized door frame types:

  • Door frame with rebate: A frame featuring a recessed step (rebate) to seat the door leaf (see Figure 3).
  • Door frame without rebate: A simple frame without a rebate recess (see Figure 4).
  • Door frame with transom: A frame incorporating a horizontal bar or panel above the door (see Figure 5).
  • Door frame reveal: The visible portion of the frame, which can be either rebated or non-rebated.
  • Butt type door frame: Frames designed for butt-hinged doors (see Figures 10, 11, 12, 14, 15, 16).
  • Wrap around door frame: Frames with trim that wraps around wall edges (see Figures 13 and 17).

Additionally, dimensions such as rebate depth and width, joint clearance between door leaf and frame, and clearance between door leaf and finished floor are specified to ensure uniformity.

Mermaid diagram: graph TD A[Door Frames] --> B[With Rebate] A --> C[Without Rebate] A --> D[With Transom] A --> E[Butt Type] A --> F[Wrap Around]

Reference: IS 10428:1983 Clause 2.1.2 and associated illustrations.

?How does IS 10428 define structural openings and reveals for doors?▼

According to IS 10428, structural openings are the voids within walls or partitions intended to accommodate doorsets. These openings come in two primary types:

  • Non-rebated reveal (illustrated in Figure 1).
  • Rebated reveal (illustrated in Figure 2).

Structural reveal refers to the visible edge of the structural opening, which can be either rebated or non-rebated.

Key dimensional features include the vertical sides of the opening, the structural rebate (a stepped recess for door fitting), and the depth and width of the rebate to ensure proper door assembly. The finished floor serves as a reference level for vertical clearances.

Door frames correspond to these reveals, being either with or without rebate (Figures 3 and 4). Clearances such as the joint clearance between frame and door leaf and the clearance between door leaf and finished floor are specified (Clause 2.2.4).

Mermaid diagram: flowchart LR A[Structural Opening] A --> B[Non-Rebated Reveal] A --> C[Rebated Reveal] B --> D[Door Frame without Rebate] C --> E[Door Frame with Rebate] E --> F[Structural Rebate: Depth & Width] B --> G[Structural Reveal] C --> G

This structured approach ensures compatibility between wall openings and door assemblies.

?What dimensional clearances between door leaf and frame are specified in this standard?▼

IS 10428:1983 specifies several dimensional clearances essential for door functionality:

  • Joint Clearance (j): The gap between the door frame and the door leaf, allowing smooth movement without friction.
  • Coordinating Width (e), Height (d), and Depth (f): These clearances represent the gaps between door frame and leaf in respective dimensions.
  • Clearance between door leaf and finished floor (k): Ensures the door does not scrape the floor and allows for finishes.

Typical clearance values recommended are:

Clearance TypeTypical Dimension (mm)
Width clearance (e)2 to 4 mm
Height clearance (d)2 to 4 mm
Depth clearance (f)2 to 5 mm
Floor clearance (k)10 to 15 mm

Mermaid diagram: flowchart LR DoorFrame -->|Clearance j| DoorLeaf DoorLeaf -->|Clearance e (width)| DoorFrame DoorLeaf -->|Clearance d (height)| DoorFrame DoorLeaf -->|Clearance f (depth)| DoorFrame DoorLeaf -->|Floor clearance| FinishedFloor

Maintaining these clearances ensures smooth door operation and durability.

?Does IS 10428 cover terminology for both rebated and non-rebated doors?▼

Yes, IS 10428:1983 explicitly includes terminology for both rebated and non-rebated door systems.

It defines door frames with rebate (designated as 2a) and without rebate (2b). Structural openings are categorized into non-rebated reveals (1a) and rebated reveals (1b). The standard details rebate dimensions like depth and width and provides illustrative figures covering these types (Figures 1 to 5, 10 to 17).

This comprehensive glossary ensures consistent terminology usage for hinged or pivoted doors regardless of rebate presence.

Mermaid diagram: graph TD A[Structural Opening] A --> B[Non-Rebated Reveal (1a)] A --> C[Rebated Reveal (1b)] B --> D[Door Frame without Rebate (2b)] C --> E[Door Frame with Rebate (2a)]

Thus, the standard supports clarity across different door frame and leaf designs.

?How can this glossary help in coordinating door sizes with structural openings?▼

The glossary in IS 10428 facilitates precise coordination between door sizes and structural openings by:

  • Defining essential terms such as structural opening, structural reveal, rebated and non-rebated reveals, and rebate dimensions (width and depth).
  • Clarifying dimensional relationships for vertical and horizontal coordination using symbols like A1, A2, d2, d'2, d3, d'3 for heights and B1, B2, e, e2, e3, g for widths.
  • Specifying critical clearances including joint clearance between door frame and leaf, and floor clearance between door leaf and finished floor.
  • Providing illustrative diagrams to visualize these terms and measurements, ensuring uniform understanding.

Practical application involves sizing the structural reveal dimensions to determine rough openings, selecting door frames slightly smaller for installation tolerance, and ensuring door leaf dimensions fit within frames with proper clearances.

Mermaid diagram: flowchart LR Structural_Opening --> Structural_Reveal Structural_Reveal --> Door_Frame Door_Frame --> Door_Leaf Door_Leaf --> Clearances Clearances --> Joint_Clearance Clearances --> Floor_Clearance

By standardizing terminology and dimensions, the glossary promotes compatibility and smooth installation of doors.

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