Overview

Medium and heavy-duty polymer concrete enclosures

Our polymer concrete enclosures deliver medium- to heavy-duty utility access in pedestrian and off-roadway applications that may be subject to occasional non-deliberate heavy vehicular traffic such as parking lots and driveways.

Engineered and optimized by our materials science experts to provide high flexural and tensile strength, these enclosures deliver robust Tier 15 and Tier 22 load ratings, providing water, energy and telecommunications professionals with reliable, durable vaults, splice boxes and meter boxes.

Available with straight or flared walls for increased lateral strength and below-ground volume, units may be modified easily in the field without the need for specialist tools.

 

Need different performance? Find out which of our underground enclosures gives you the load rating you need: Underground Enclosure Load Ratings

Try Duralite® for equivalent strength at half the weight.

Benefits

Strong, resilient, heavy duty

Our materials science experts developed our polymer concrete enclosures using a precise dry mix of select gravel and sand, which is bound with resin and a fiberglass fabric.

This mixture, combined with our manufacturing process, results in high flexural and tensile strength while keeping weight to a minimum.

Our Tier 15 and Tier 22 rated polymer concrete enclosures can withstand vertical loads up of to 22,500 lbs and lateral loads of up to 800 lbs/ft2.

If you require a lighter enclosure with comparable strength, consider Duralite® as an alternative.

Flexible design and installation options

Available in round, square and rectangular configurations, with straight and flared walls and a range of depth options, our polymer concrete enclosures provide enormous design flexibility, enabling engineers to accommodate a wide range of site requirements.

Modify easily in the field

Despite their high strength and durability, our polymer concrete enclosures may be modified easily in the field using standard power tools, with no need for specialist equipment.

Get it fast

Our nationwide network of plants means that we have the scale to manufacture and stock a full range of products, meaning we can get your polymer concrete enclosures to site when and where you need them—and our local teams will work with you to make sure you have all the support you need.

Find your local partner

Technical Information

  • Application: Pedestrian and off-roadway subject to occasional non-deliberate heavy vehicular traffic
  • Load rating: ANSI/SCTE Tier 15 / Tier 22
  • Vertical load: up to 22,500 lbs
  • Lateral load: up to 800 lbs/ft2
  • Materials: polymer concrete
  • Cover: polymer concrete
  • Dimensions, round: 10” diameter, 10” depth
  • Dimensions, square/rectangular: 10”-48” width, 15”-72” length, 12”-36” depth (3” extension available)

* Depth may be increased by stacking units

Products