Intermediate Duct Spacers

Intermediate Duct Spacers | Cal Am Two-Piece Design | 2″–8″ Duct Sizes

Cal Am Intermediate Duct Spacers provide durable, field-proven support for underground duct bank installations. These two-piece interlocking spacers are engineered to maintain duct alignment and prevent shifting during trenching, encasement, or direct burial. Built from high-impact polymer, they are trusted by contractors nationwide for their strength, versatility, and ease of use.

Available in 18 standard configurations, Cal Am spacers accommodate duct diameters from 2″ to 8″ (50–200 mm) and separation distances from 1.5″ to 3.0″ (40–80 mm). This wide range ensures accurate and consistent duct positioning, whether for small conduit runs or large-scale encased infrastructure projects.

Each spacer is lightweight, corrosion-resistant, and designed for quick vertical and horizontal interlocking in the field — requiring no special tools. Their rugged construction supports heavy loads, resists damage from soil pressure or heat exposure, and performs reliably in both encased concrete and direct-burial applications.

Key Features & Benefits

• Two-Piece Locking Design – Maintains duct spacing accuracy even under heavy loads or vibration during encasement.
• Wide Size Range – 18 available sizes fit ducts from 2″–8″ (50–200 mm) and separation distances from 1.5″–3″ (40–80 mm).
• High-Impact Polymer Construction – Resistant to corrosion, temperature extremes, and soil pressure for long-lasting performance.
• Quick Interlocking Assembly – Vertical and horizontal connections allow fast, secure field setup without tools.
• Eco-Friendly Materials – Made from recycled and fully recyclable polymers for environmentally conscious projects.
• Encased or Direct Burial Use – Suitable for both concrete-encased and soil-buried duct systems.

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