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Duct Access Boxes

Showing all 7 results

  • Ducting access chamber designed for optimal access to utility underground infrastructure.

    1200x1200x150 SupaStack D400 Modular Duct Access Chamber

    £95.00 excl VAT £95.00
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  • Our durable StakkaBox / QuadBox. Modular and approved for BT Openreach networks.

    BT QuadBox/StakkaBox JMF106 & JMF104

    Price range: £67.50 through £95.00
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    This product has multiple variants. The options may be chosen on the product page
  • Ecolite duct access chamber designed for utility access and protection.

    Ecolite/Ecoplus D400 Duct Access Chambers

    Price range: £15.00 through £79.00
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    This product has multiple variants. The options may be chosen on the product page
  • High-quality duct chambers. The modular Naylor Metro Access Box.

    Metro Access Box

    Price range: £22.50 through £38.00
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    This product has multiple variants. The options may be chosen on the product page
  • Composite Cover With Galv Frame SL/TS 12.5T

    Composite Cover With Galv Frame SL/TS 12.5T

    Price range: £78.00 through £164.00
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    This product has multiple variants. The options may be chosen on the product page
  • Jmfcablekit

    QUADBOX FURNITURE KIT No.4

    £29.95 excl VAT £29.95
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  • Bt quadbox duct access drop in access step

    QUADBOX STEP 150mm

    £12.80 excl VAT £12.80
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Duct Access Chambers

Castings Drainage supplies a comprehensive range of duct access chambers engineered to provide secure, practical access points within underground ducting systems. The full selection of duct access boxes provides robust, load-rated performance for commercial, telecom, electrical, and street lighting networks across the UK.

Technical Profile and Specifications

Featuring a twin-wall, modular design, these high-strength duct access chambers allow for rapid, lightweight on-site assembly without the need for wet concrete surrounds. The structurally ribbed design easily accommodates multi-directional duct entries while resisting significant lateral soil pressures. Specifiers can select from compact footway units through to extreme-loading D400 highway enclosures, ensuring a long service life for straightforward cable pulling, jointing, and routine maintenance.

Product Configurations

To ensure seamless compatibility with standard UK utility and telecoms networks, our structured range covers all major modular chamber classifications:

  • Modular Access Chambers: Including high-capacity SupaStack D400 systems and lightweight Naylor Metro units designed for rapid interlocking wall assembly.

  • Network Approved Enclosures: Approved StakkaBox and QuadBox (JMF104/JMF106) configurations engineered specifically to satisfy BT Openreach infrastructure specifications.

Chamber Components & Accessories

To ensure a complete, secure installation that remains fully operational under high-stress conditions, we stock matching chamber accessories and furniture:

  • Composite Covers & Galvanised Frames: Available in B125 (12.5-tonne) and D400 load ratings to provide a lightweight, skid-resistant, and secure finish flush with the wearing course.

  • Chamber Furniture Kits & Steps: Heavy-duty step irons and structural furniture kits designed to facilitate safe operative entry and secure cable management within deeper Duct Box Chambers.

Need Project Pricing or Advice?

Contact Castings Drainage today for bulk project discounts, technical data sheets, or advice on BT Openreach compatibility.

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