Flat Floor Steel Dump Bodies
Engineered for maximum versatility and easy maintenance. Perfect for aggregates, asphalt, and general hauling applications.
Choose a Model
We proudly offer two industry-leading flat floor dump body brands, each with unique features and benefits to meet your specific needs.
Diamond Model (DL & DH)
Premium flat floor dump bodies by Beau-Roc. Available in DL (standard) and DH (heavy-duty) series with identical design - only steel thickness differs.
- Same proven design in both series
- Choose thickness based on application
- Backed by Beau-Roc quality
NeuStar Square Gravel Box
Innovative square design maximizes capacity while maintaining stability. Perfect for gravel and aggregate operations requiring efficient material flow.
- Optimized square configuration
- Superior material flow
- Competitive pricing
Common Features Across All Flat Floor Models
Smooth Level Floor
Flat floor design ensures complete material discharge and easy cleaning
Hardox Steel Construction
Built with premium Hardox steel for exceptional durability and longevity
Easy Maintenance
Simple design allows for straightforward maintenance and repairs
Maximum Payload
Optimized weight distribution for maximum legal payload capacity
Typical Sizes & Capacities
| Length | Width | Height | Capacity | Recommended Axles |
|---|---|---|---|---|
| 12' | 96" | 48" or 54" | 6-7 cubic yards | Tandem |
| 13' | 96" | 48" or 54" | 7-8 cubic yards | Tandem |
| 14' | 96" | 48" or 54" | 8-9 cubic yards | Tandem |
| 16' | 96" | 48" or 54" | 10-12 cubic yards | Triaxle |
| 17' | 96" | 48" or 54" | 11-13 cubic yards | Triaxle |
| 17.5' | 96" | 48" or 54" | 12-14 cubic yards | Triaxle |
| 18' | 96" | 48" or 54" | 13-15 cubic yards | Quadaxle |
| 19' | 96" | 48" or 54" | 14-16 cubic yards | Quadaxle |
| 19.5' | 96" | 48" or 54" | 15-17 cubic yards | Quadaxle |
| 20' | 96" | 48" or 54" | 16-18 cubic yards | Quintaxle |
| 21' | 96" | 48" or 54" | 17-19 cubic yards | Quintaxle |
| 22' | 96" | 48" or 54" | 18-20 cubic yards | Quintaxle |
* Capacities shown are struck (level load). Heaped capacities typically 25-30% higher.
Steel Thickness Options
| Component | Standard | Upgraded | Premium |
|---|---|---|---|
| Floor | 1/4" (6mm) | 5/16" (8mm) | 3/8" (10mm) |
| Side Walls | 3/16" (5mm) | 1/4" (6mm) | 5/16" (8mm) |
| Front Wall | 1/4" (6mm) | 5/16" (8mm) | 3/8" (10mm) |
Steel Selection Guide
Standard Thickness
Ideal for general hauling, aggregates, and light-duty applications
Upgraded Thickness
Best for asphalt, heavier aggregates, and increased durability
Premium Thickness
Maximum durability for mining, heavy construction, and extreme duty
Tailgate Options
Barn Door
Traditional swing-out doors with manual operation
Features:
- Manual operation
- Easy maintenance
- Cost effective
- Full opening width
High Lift
Hydraulically operated tailgate that lifts up and over
Features:
- Hydraulic operation
- Quick dumping
- Tight spaces
- Remote control option
Air Gate
Air-operated gate system for rapid discharge
Features:
- Air operation
- Fastest discharge
- Minimal spillage
- Precise control
Technical Specifications
- Floor Material
- Hardox 450 Steel
- Side Wall Heights
- 48" or 54" (Standard Options)
- Typical Lengths
- 12' - 22' (including half sizes)
- Standard Width
- 96" (8 feet)
- Axle Configurations
- Tandem, Triaxle, Quadaxle, Quintaxle
- Tailgate Options
- Barn Door, High Lift, Air Gate
Key Benefits
- Complete material discharge with no hang-ups
- Ideal for aggregates, asphalt, and general hauling
- Easier to clean between different materials
- Lower center of gravity for improved stability
- Versatile for multiple applications
- Available in all standard truck configurations
Need Help Choosing the Right Steel Thickness?
View our comprehensive steel thickness guide with recommendations for different applications.
Why Do We Use Hardox Steel?
Learn why Hardox is the premium choice for dump body construction and how it compares to standard AR plate.
Related Dump Body Models
Ideal Applications
Construction Materials
Sand, gravel, crushed stone, and aggregates
Road Building
Asphalt, road base, and paving materials
Agricultural
Grain, feed, and agricultural products
Frequently Asked Questions
What is the typical lifespan of a flat floor dump body?
With proper maintenance, our Hardox steel flat floor dump bodies typically last 15-20 years in normal hauling conditions. The Diamond Model and NeuStar options are built for maximum durability with reinforced construction.
What's the difference between flat floor and elliptical dump bodies?
Flat floor dump bodies provide complete material discharge and are easier to clean between loads. Elliptical bodies offer lighter weight and are better for volume hauling. Flat floors excel with sticky materials like asphalt and wet aggregates.
Can I get financing for a new dump body installation?
Yes, Petra Truck Equipment works with multiple financing partners to help you get the equipment you need. Contact us to discuss financing options and competitive rates for your flat floor dump body project.
How long does installation take?
Most flat floor dump body installations are completed within 1-2 business days, depending on the complexity and any custom modifications. We'll provide a detailed timeline when you schedule your installation.
Ready to Order Your Flat Floor Dump Body?
Contact our team for custom specifications and competitive pricing. Expert installation available.