Overview

Reinforced fiberglass enclosures

Strong yet lightweight, our range of Tier 8 and Tier 15 rated fiberglass enclosures provides utility access for water, energy and telecommunications on greenbelt, pedestrian and occasional vehicle traffic areas such as parking lots and driveways.

Produced using a hybrid process that bonds polymer concrete rings with high-impact resistant fiberglass sidewalls, these enclosures provide impressive durability and lateral strength while minimizing weight.

Our fiberglass enclosures are quick, simple and safe to deliver, handle and install, and their material composition means that despite their strength and impact resistance, on-site modifications may be carried out quickly and easily 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

Benefits

Lightweight yet durable

Paired with polymer concrete covers, our reinforced fiberglass enclosures have been developed by our materials science experts to deliver Tier 8 and Tier 15 load ratings—up to 15,000 lbs of vertical load and up to 800 lbs/ft2 of lateral load—in a lightweight unit.

Optional flared walls provide additional lateral strength, while also increasing below-ground volume.

Deliver, handle and install quickly and easily

The materials design of our fiberglass enclosures means that they deliver an impressive strength-to-weight ratio, making manual handling easy, fast and safe.

Delivery, on-site handling and installation are straightforward and quick.

Modify easily in the field

Despite the strength and impact-resistant sidewalls, on-site modifications to our fiberglass enclosures may be carried out quickly and easily with standard 18V power tools—no need for specialist tools or 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 Tier 8 and Tier 15 fiberglass 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 8 / Tier 15
  • Vertical load: up to 15,000 lbs
  • Lateral load: up to 800 lbs/ft2
  • Materials: fiberglass reinforced with polymer concrete
  • Cover: polymer concrete
  • Dimensions, round: 10”-39” diameter, 18”-72” depth
  • Dimensions, rectangular: 11”-48” width, 18”-96” length, 12”-48” depth

Specs & Downloads

Helpful Information

Product Filters
Height FT / IN
Width FT / IN
Length FT / IN
Diameter FT / IN
Clear Filters
Name Model Height Width Length Diameter Downloads Quote Generator
Oldcastle FRP 1118 18” 11” View Add
Oldcastle FRP 1324 Flared 24” 13” View Add
Oldcastle FRP 1324 24” 13” View Add
Oldcastle FRP 1730 30” 17” View Add
Oldcastle FRP Flared 1730 30” 17” View Add
Oldcastle FRP 2424 24” 24” 24” View Add
Oldcastle FRP 2436 36” 24” View Add
Oldcastle FRP Flared 2436 36” 24” View Add
Oldcastle FRP Flared 3048 48” 30” View Add
Oldcastle FRP 3048 48” 30” View Added
Oldcastle FRP 3060 60” 30” View Add
Oldcastle FRP 3660 60” 36” View Add
Oldcastle FRP 4872 72” 48” View Add
Oldcastle FRP 4896 96” 48” View Add
Oldcastle FRP 1000 18” 10” View Add
Oldcastle FRP 1800 18” View Add
Oldcastle FRP 2200 30” 22” View Add
Oldcastle FRP 2700 27” View Add
Oldcastle FRP 3900 39” View Add
Oldcastle FRP 5400 51” View Add
Oldcastle FRP 1132 12” 32” 11” View Add

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