Beam cages assembled on a fabrication bench

Reference visual

Reinforcement Cages

Individual Bars. One Coordinated Assembly. A Better-Prepared Site.

Prefabricated reinforcement cages shaped around your approved drawings and construction sequence.

Bring reinforcement details together before they reach the workface. INDOSONNIC prepares reinforcement cages that combine specified main bars, stirrups, hoops, and links into organised assemblies for concrete construction.

From columns and beams to footings, piles, and custom structural elements, each cage is prepared around approved reinforcement requirements. Completing selected assembly activities before delivery can reduce repetitive site fixing and help teams organise material, handling, and placement.

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Prepared as an Assembly. Planned for Installation.

A reinforcement cage must suit both its final position and the steps needed to get it there.

Our preparation approach considers reinforcement geometry, connections, transport, lifting access, and installation sequence. Depending on project requirements, cages may be supplied as complete units, partial assemblies, or identified segments.

The agreed scope defines what arrives assembled, which components are supplied separately, and what work remains at site.

Beam reinforcement cage lifted into position — Reference visual

Reinforcement Cage Solutions

Column CagesLongitudinal bars and transverse reinforcement assembled around approved column details and connection requirements.
Beam CagesMain bars and stirrups coordinated with support zones, anchorage, adjoining reinforcement, and placement sequence.
Footing AssembliesPrepared reinforcement mats or cages arranged around foundation geometry, starter bars, and handling requirements.
Pile CagesLongitudinal and transverse reinforcement prepared as complete lengths or connected segments, as approved.
Custom AssembliesProject-specific configurations reviewed against structural details, manufacturing feasibility, and site conditions.

Discuss the Right Cage Configuration

Sub-products

Types of Reinforcement Cages & Specifications

Reinforcement cages combine main bars, stirrups, hoops, and links into assemblies prepared for specific structural elements. INDOSONNIC reviews each requirement against approved drawings, manufacturing feasibility, and site handling arrangements.

Column Reinforcement Cages

Prepared reinforcement for vertical structural elements.

Column cages bring longitudinal bars and transverse reinforcement together in the approved arrangement. Supply may be planned as complete cages or segments to suit connections, transport, and erection.

Column reinforcement cage lying horizontally — Product illustration

Square column cage end view with main bars and ties — Product illustration

Parameter	Specification
Cage configuration	Square, rectangular, circular, or approved custom geometry
Cross-sectional dimensions	As per approved reinforcement drawings
Main bars	Diameter, number, and arrangement as scheduled
Stirrups, hoops, and crossties	Shape, diameter, hooks, and spacing as detailed
Cage length	As agreed within manufacturing and handling limits
Connections	Starter bars, laps, or couplers as approved
Identification	Column mark, level, and segment reference

Share Your Column Schedule

Beam Reinforcement Cages

Main bars and stirrups coordinated for placement.

Beam cages organise reinforcement around the approved beam details, including support zones, anchorage, and connections. Some bars may be supplied separately where installation access requires site completion.

Full-length beam reinforcement cage on bearers — Product illustration

Beam cage on timber bearers showing bars and stirrups — Product illustration

Parameter	Specification
Cage configuration	Rectangular, grade beam, tie beam, or approved custom arrangement
Cage dimensions	Length, width, and depth as detailed
Main bars	Number, diameter, layers, and positions as scheduled
Stirrups	Diameter, shape, and spacing by zone
Additional reinforcement	Included or supplied separately, as identified
Anchorage and splices	As per approved details
Joint interfaces	Coordinated with columns, slabs, and adjoining beams
Identification	Beam mark, level, location, and segment reference

Submit Beam Drawings

Footing Reinforcement Cages & Assemblies

Organised reinforcement for individual and continuous foundations.

Footing reinforcement may be supplied as mats, partial assemblies, or complete cages where feasible. Preparation considers foundation geometry, reinforcement layers, column starters, and access for placement.

Footing assembly with starter bars on chairs — Product illustration

Footing mat with column starter bars — Product illustration

Parameter	Specification
Foundation type	Isolated, combined, or strip footing
Assembly dimensions	As per approved footing reinforcement geometry
Main reinforcement	Bar diameters and spacing in each direction
Reinforcement layers	Bottom, top, and additional bars as detailed
Starter-bar interface	As per approved column or pedestal details
Supports and chairs	Type and supply responsibility as agreed
Assembly divisions	Based on approved details and handling requirements
Identification	Footing mark, layer, and assembly reference

Share Your Footing Layout

Pile Reinforcement Cages

Cylindrical assemblies planned for handling and lowering.

Pile cages combine longitudinal bars with specified rings or spiral reinforcement. They may be supplied in a single length or identified segments connected according to approved details.

Full-length circular pile cage on supports — Product illustration

Pile reinforcement cage lifted by crane using a spreader beam — Reference visual

Parameter	Specification
Cage configuration	Circular or other approved geometry
Cage diameter	As per approved reinforcement dimensions
Cage length	Complete length or planned segments, as agreed
Longitudinal bars	Number, diameter, and arrangement as scheduled
Transverse reinforcement	Rings or spiral, with specified diameter and spacing
Segment connections	Approved laps, couplers, or other specified connections
Stiffening and lifting provisions	As required by the approved handling arrangement
Spacers and accessories	As specified, with supply scope agreed
Identification	Pile type, cage mark, and segment sequence

Request a Pile Cage Quote

Raft Reinforcement Assemblies

Coordinated components for multi-layer foundation reinforcement.

Selected raft areas can be reviewed for prefabricated mats or three-dimensional assemblies. Preparation must fit the complete reinforcement layout, including supports, column zones, openings, and placement sequence.

Two-layer raft reinforcement assembly — Product illustration

Raft reinforcement with column starters in an excavation — Reference visual

Parameter	Specification
Supply format	Mats, partial cages, or selected prefabricated assemblies
Assembly dimensions	As per approved layout and handling limits
Main reinforcement	Diameter and spacing in each direction
Layer arrangement	Top, bottom, and intermediate layers as detailed
Local reinforcement	Column zones, openings, edges, and other additions as specified
Supports and chairs	As designed, with supply responsibility agreed
Connections	Laps, couplers, and assembly interfaces as approved
Identification	Raft zone, layer, direction, and assembly reference

Discuss Raft Reinforcement

Shear Wall & Boundary Element Cages

Prepared assemblies for wall reinforcement and concentrated reinforcement zones.

Wall assemblies coordinate vertical bars, horizontal bars, and specified confining reinforcement. Assembly boundaries consider openings, connections, congestion, and the formwork sequence.

Wall reinforcement panels standing at roof level on a building — Reference visual

3D illustration of beam cages meeting a column cage — Concept illustration

Parameter	Specification
Assembly type	Wall panel, boundary element cage, or partial assembly
Overall geometry	As per approved wall elevations and sections
Vertical reinforcement	Diameter, number, spacing, and arrangement as detailed
Horizontal reinforcement	Diameter and spacing as specified
Confining reinforcement	Links, hoops, and crossties as approved
Openings and connections	Coordinated with approved local reinforcement details
Splices and couplers	Positions and connection types as specified
Identification	Wall mark, level, boundary zone, and segment reference

Submit Shear Wall Details

Pedestal Reinforcement Cages

Compact assemblies for detailed foundation interfaces.

Pedestal cages organise longitudinal bars and links around approved foundation and upper-element connections. Preparation also considers clearances around anchor bolts or embedded items where applicable.

Concrete being placed around a prepared footing and column cage — Reference visual

Footing reinforcement with column starter bars on site — Reference visual

Parameter	Specification
Cage shape and dimensions	As per approved pedestal reinforcement drawings
Main reinforcement	Number, diameter, and arrangement as scheduled
Links and ties	Diameter, configuration, and spacing as detailed
Anchorage	As specified into the adjoining foundation or element
Interface clearances	Coordinated with approved anchor and embedded-item layouts
Cage height	As detailed, within agreed handling limits
Identification	Pedestal mark and location reference

Share Your Pedestal Drawings

Custom Reinforcement Cages

Project-specific assemblies for specialised geometry.

Custom cages address reinforcement arrangements that do not fit standard categories. Feasibility is reviewed against the approved design, assembly access, transport, lifting, and installation requirements.

Line drawing of column, beam and footing cages at a junction — Concept illustration

Parameter	Specification
Geometry	As per approved, fully dimensioned drawings
Reinforcement	Bar sizes, quantities, shapes, and spacing as scheduled
Assembly boundaries	Defined around connections and installation sequence
Connections	As approved for the project
Embedded-item interfaces	Included only within the agreed scope
Handling provisions	Based on the engineered handling arrangement
Inspection requirements	As agreed for the assembly
Identification	Unique component and segment references

Discuss a Custom Cage

Specification

Product Specifications

Parameter	Specification
Product format	Prefabricated reinforcement cage, partial assembly, or planned segment
Applications	Columns, beams, footings, piles, and approved custom structural elements
Cross-section and geometry	As per approved reinforcement drawings
Overall dimensions	Based on approved reinforcement geometry and specified concrete cover
Steel grade	As specified and agreed for the project
Main reinforcement	Bar diameters, numbers, lengths, and arrangement as scheduled
Stirrups, hoops, and links	Sizes, shapes, hooks, and configurations as approved
Reinforcement spacing	As detailed for each structural zone
Cage or segment length	Project-specific, within agreed manufacturing, transport, and handling limits
Anchorage and bends	As per approved detailing
Splices and couplers	Type, location, and supply scope as approved and agreed
Assembly method	Tied; welded only where specifically permitted and approved
Additional reinforcement	Included or supplied separately, as identified in the order
Dimensional tolerances	As agreed under applicable project requirements
Identification	Element mark, location, level, and cage or segment reference
Lifting and temporary stability	Subject to an agreed engineered handling arrangement
Inspection and documentation	As defined in the project and supply scope
Supply model	Material supply with fabrication, or processing of customer-issued steel, as agreed
Measurement basis	As stated in the quotation
Delivery format	Complete cages, partial assemblies, or identified segments

Specification

Specifications Common to All Cage Types

Prefabricated cages loaded on a trailer for transport (number plates and markings blurred) — Reference visual

Parameter	Requirement
Steel grade	As specified and agreed for the project
Bar diameter range	Confirmed against manufacturing capability for each enquiry
Assembly method	Tied; welded only where specifically permitted and approved
Concrete cover	Maintained during installation as specified in approved drawings
Dimensional tolerances	As agreed under applicable project requirements
Lifting and temporary stability	Addressed through an engineered handling arrangement
Documentation	Material certificates, inspection records, and dispatch identification as agreed
Delivery	Complete units, partial assemblies, or identified segments
Site completion	Remaining bars, connections, supports, and responsibilities defined before supply

Get Specifications for Your Project.

Share your approved drawings, bar bending schedule, quantities, material requirements, and delivery priorities for a cage-specific quotation.

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Advantages

More Preparation Before Delivery.

Reduce repetitive site assembly by completing selected fixing activities in advance.
Organise reinforcement by location through agreed cage marks and identification.
Coordinate construction stages with planned assembly divisions and deliveries.
Clarify remaining site work by defining connections, loose components, and installation responsibilities.

The practical benefit depends on the design, quantities, repetition, logistics, and available handling equipment.

From Approved Details to Prepared Cages.

01Share Drawings
02Confirm Assembly Scope
03Prepare Cages
04Check & Identify
05Coordinate Delivery

Checks may cover bar sizes and quantities, cage dimensions, spacing, connections, and identification within the agreed inspection scope.

Site placement must still address specified cover, supports, remaining connections, temporary stability, and inspection before concreting.

Standards

Indian and International Standards

Prefabricated Column, Beam and Foundation Cages

Indian references

IS 1786, IS 2502 and relevant IS 456 provisions.
IS 13920 where seismic detailing applies.
IS 9417 where reinforcement welding is specified and applicable.

International references

BS 8666 for scheduled and bent reinforcement.
ISO 17660-1 for load-bearing reinforcement welds, or ISO 17660-2 for non-load-bearing reinforcement welds, subject to scope.
AWS D1.4/D1.4M where specified for reinforcement welding within its scope.

Pile Reinforcement Cages

Pile cages follow the relevant reinforcement material, bending and connection requirements described above, together with the project’s pile design and construction specification.

Share Your Drawings. Let’s Prepare What Comes Next.

Send your drawings, quantities, material specifications, project location, and delivery requirements for a project-specific quotation.

Request a Quote Upload Drawings

Reinforcement Cages

Prepared as an Assembly. Planned for Installation.

Reinforcement Cage Solutions

Types of Reinforcement Cages & Specifications

Column Reinforcement Cages

Beam Reinforcement Cages

Footing Reinforcement Cages & Assemblies

Pile Reinforcement Cages

Raft Reinforcement Assemblies

Shear Wall & Boundary Element Cages

Pedestal Reinforcement Cages

Custom Reinforcement Cages

Product Specifications

Specifications Common to All Cage Types

Get Specifications for Your Project.

More Preparation Before Delivery.

From Approved Details to Prepared Cages.

Indian and International Standards

Prefabricated Column, Beam and Foundation Cages

Indian references

International references

Pile Reinforcement Cages

Share Your Drawings. Let’s Bring the Details Together.

Share Your Drawings. Let’s Prepare What Comes Next.