---
title: "Underground Storm Shelters — Concrete In-Ground | Sheltris"
url: https://sheltris.com/storm-shelters/residential/below-ground
description: "Pre-cast concrete underground storm shelters rated for EF5 tornadoes. 5,000 PSI concrete, rebar reinforced. Professional installation in Lubbock, TX."
lang: en
---

Underground Storm Shelters — Lubbock & West Texas (806) 241-8862 (+18062418862)

# Underground Concrete Storm Shelters

Pre-cast concrete. Rebar reinforced. Rated for EF5 tornadoes. Installed in one day.

FEMA Compliant

Texas Tech Tested

Locally Owned

## Why Underground Concrete Is the Highest Level of Protection

Underground shelters eliminate the two biggest threats in a tornado — wind uplift and flying debris. A shelter below grade is shielded by the earth itself. No anchor system to fail. No lightweight wall to flex. Just mass, density, and physics working in your favor.

Steel shelters flex under extreme pressure. Fiberglass can crack on high-velocity debris impact. Concrete at 5,000 PSI with steel reinforcement does neither. It absorbs impact and resists deformation. That's not marketing — it's material science.

FEMA P-361 guidelines require resistance to 250 mph winds and representative debris impact for tornado shelters. ICC 500 (https://sheltris.com/resources/standards-testing) incorporates these requirements into enforceable building code. Our shelters are manufactured to meet both.

## Shelter Specifications

Concrete Strength 5,000 PSI

Reinforcement ½″ rebar every 12″ + 10-gauge steel mesh

Door 12-gauge powder-coated steel

Latching Custom 3-point internal latching system

Capacity 6–10 adults comfortably

Dimensions 92″ × 65″ × 75″ interior

Weight ~15,000 lbs

Wind Rating EF5 (250+ mph winds and debris)

Electrical Pre-installed port for lighting/ventilation

Starting at $5,799 + tax installed: https://sheltris.com/pricing

Financing & rebates available: https://sheltris.com/financing

## How We Install Your Underground Shelter

1

### Site Assessment

We evaluate your property for placement, soil conditions, utility clearances, and drainage.

2

### Excavation

Professional excavation of the shelter pit, accounting for the caliche layer common in Lubbock soil.

Image: Storm shelter installation step: Excavation — Sheltris West Texas (https://sheltris.com/assets/roaring-springs-excavation-C8urtrEH.png)

3

### Gravel Base

A compacted gravel base provides proper drainage and a stable foundation.

4

### Shelter Placement

The pre-cast concrete shelter is lowered into position using a crane.

Image: Storm shelter installation step: Shelter Placement — Sheltris West Texas (https://sheltris.com/assets/spur-positioning-CqEhisRH.png)

5

### Sealing & Waterproofing

Butyl sealant is applied and the lid is secured with manufacturer-specified straps and bolts.

Image: Storm shelter installation step: Sealing & Waterproofing — Sheltris West Texas (https://sheltris.com/assets/spur-lid-lowering-D6cDKMqN.png)

6

### Backfill & Grading

Area backfilled and graded to direct water away from the shelter.

Image: Storm shelter installation step: Backfill & Grading — Sheltris West Texas (https://sheltris.com/assets/roaring-springs-crane-lower-DklmKWSS.png)

7

### Walkthrough

We walk you through your shelter and answer any questions.

See our detailed installation process: https://sheltris.com/installation

Lubbock permit details: https://sheltris.com/installation/permits/texas/lubbock

## Underground vs. Above Ground

Above-ground safe rooms serve a purpose. For homes with high water tables, for residents with mobility concerns, or for properties where excavation isn't feasible, an above-ground option can provide meaningful protection.

But if your property allows it and you want the highest level of protection, underground concrete is what we recommend. It's what we specialize in. It's what we install. And it's what we'd put in our own yards.

A 15,000-pound concrete shelter buried below grade doesn't shift in saturated soil. It doesn't rely on anchors. It doesn't flex. The earth itself is part of the protection system — and that's an advantage no above-ground option can replicate.

Read the full comparison guide (https://sheltris.com/resources/above-ground-vs-below-ground)

## Frequently Asked Questions About Underground Storm Shelters

Do underground storm shelters flood?

Properly installed underground shelters with waterproof sealing and correct drainage grading should not flood. West Texas soil is generally low-moisture, which is an advantage. Our sealing process and grading are designed for the South Plains climate.

How deep is an underground storm shelter?

The shelter sits below grade with the entry hatch at or near ground level. Exact depth is determined during site assessment based on your property's grade.

How long does an underground shelter last?

Concrete shelters are engineered for decades of service. Our 5,000 PSI concrete with rebar reinforcement is the same grade used in commercial foundations and infrastructure.

What's the difference between a storm cellar and a storm shelter?

A traditional storm cellar is typically a DIY-built or older underground space without engineering standards. A modern storm shelter is engineered and tested to specific standards (FEMA P-361, ICC 500) to withstand EF5 tornado forces.

## Ready to protect your family? Get a free quote in 60 seconds.

Get Your Free Quote (https://sheltris.com/get-quote)

## Related Resources

### Underground vs. Above Ground

Full 14-feature comparison of shelter types for West Texas.

Read more
https://sheltris.com/resources/above-ground-vs-below-ground

### Safe Rooms vs. Shelters

How interior safe rooms compare to underground storm shelters.

Read more
https://sheltris.com/storm-shelters/safe-rooms

### Pricing & Costs

What a shelter costs in Texas, what's included, and savings options.

Read more
https://sheltris.com/pricing

### Lubbock Permits

Building permit process, setback rules, and requirements.

Read more
https://sheltris.com/installation/permits/texas/lubbock

### Financing & Rebates

FEMA grants and SPAG rebate programs.

Read more
https://sheltris.com/financing

### Standards & Testing

FEMA P-361, ICC 500, and Texas Tech testing explained.

Read more
https://sheltris.com/resources/standards-testing

Call Now: +18062418862
Free Quote: https://sheltris.com/get-quote

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