Duct Spacers

Cal Am Duct Spacers & UniSpacer™ Blue Duct Spacers

Proven Conduit Support Systems for Underground Installations

Manufactured by Cal Am Manufacturing – Distributed by Cable Accessories Ltd

Reliable Support for Underground Conduit Systems

Cable Accessories Ltd is the Irish distributor for Cal Am Manufacturing, offering a complete range of Duct Spacers and the new UniSpacer Blue Duct Spacers.

These systems are engineered for supporting and aligning conduits in underground electrical, telecom, and broadband networks prior to encasement, ensuring consistent spacing, strength, and long-term stability.

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Whether you need product advice, a custom solution, or just have a quick question — we’re here to help and happy to chat!

For decades, Cal Am Duct Spacers have been the trusted choice of contractors worldwide. Their two-piece interlocking design provides reliable duct separation and stability during trench installation and concrete encasement. Manufactured from high-impact polymers, these spacers are virtually indestructible and resistant to UV, temperature extremes, and heavy on-site loading.

Key Features

Two-piece interlocking system for quick, secure assembly.
No banding required – spacers lock vertically and horizontally.
18 sizes available for conduits from 50 mm to 200 mm.
Separation options from 40 mm to 80 mm.
Compatible with direct burial and encased concrete applications.
High-impact polymer construction for strength and longevity.

Cal Am Duct Spacers are engineered to stay firmly in place under load and will not shift during fill or encasement.

Available Types

Base Duct Spacers – support the first layer of conduit in trench or duct bank.
Intermediate Duct Spacers – maintain vertical alignment between conduit layers.
Clip Spacers – 4-way and 6-way quick-fit designs for organising HDPE or PVC conduit in exposed or underground builds.

Cal Am’s UniSpacer Blue Duct Spacer is a revolutionary all-in-one design combining the functions of traditional base and intermediate spacers into a single omni-compatible unit. The UniSpacer allows contractors to mix and match different conduit sizes within one duct bank, reducing trench width, material use, and overall project costs.

Key Features

One-piece design – no separate base or intermediate units required.
Omni-compatible connections – mix and match multiple conduit sizes in one array.
Slide interlocks for quick horizontal connection; press-fit vertical stacking.
Built-in clamp saddles to secure conduit and prevent float.
Integrated key-lock mechanism for added stability.
Rebar and zip-tie holes for securing to ground or framework.
Compact profile reduces trench width and excavation costs.
Made from high-strength blue polymer for easy identification.

Available Sizes

Product Number	Conduit Size (in/mm)	Spacing (mm)	Case Qty	Colour
4220-30	2” / 50 mm	80 mm	100	Blue
4240-30	4” / 100 mm	80 mm	100	Blue
4260-30	6” / 150 mm	80 mm	50	Blue

Each case includes a free bag of blue zip ties for fast on-site installation.

Build duct arrays for multiple conduit sizes using a single product series.
Fewer parts, fewer SKUs – simplifies logistics and inventory.
Locking key mechanism prevents shifting or float during concrete pour.
Designed for quick assembly – no tools required.
Rebar anchoring keeps lower rows secure and aligned.

The UniSpacer represents the future of duct array construction, combining precision, stability, and efficiency.

Telecom, broadband, and power duct banks
Data centre and substation builds
Utility and transport infrastructure
Civil engineering and industrial projects
Direct-buried and encased installations

Official Irish distributor for Cal Am Manufacturing
Technical support for duct layout and product selection
Over 20 years’ experience in underground cabling infrastructure
Local expertise for Ireland’s telecom, energy, and data markets

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