Estimated class examples
70–250
Based on the sample shipments below
Plastic Parts LTL Shipping Guide
Freight Class for Plastic Parts
Plastic parts freight class commonly ranges from Class 70 to Class 250 in the examples below.
Dense boxed components
Class 70
Nested molded housings
Class 125
Bulky thin-wall parts
Class 250
These are density-based examples. Your final estimate depends on the finished packaged dimensions, total weight, stackability, fragility, value, and handling requirements for the plastic parts shipment.
Main class factor
Packaged density
Final dimensions and total weight
Assembly effect
Flat-packed ships denser
Assembled plastic parts occupy more space
Carrier review
Stackability and damage risk
Custom, fragile, or glass-front plastic parts
Plastic Parts density calculator
Calculate Your Plastic Parts Freight Class
Example palletized plastic parts shipment loaded. Adjust the dimensions or weight to calculate your plastic parts freight class.
Your result
Cubic feet
66.67
Density
15.75
lb/cu ft
Estimated freight class
55
Example density-based estimate. Update any field to calculate your shipment.
Plastic Parts shipment comparison
Plastic Parts Freight Class by Shipment Type
Plastic parts range from dense machined components to large hollow housings and thin-wall molded assemblies. Nesting, surface finish, unsupported projections, heat sensitivity, and carton efficiency strongly affect density and handling.
| Plastic Parts shipment | Typical packaging | Density tendency | Stackability | Planning note |
|---|---|---|---|---|
| Small molded components | Partitioned cartons or bins | High | Usually stackable | Protect clips, bosses, and threads. |
| Machined plastic parts | Foam-lined cartons or crates | High | Usually stackable | Protect tolerances and polished faces. |
| Nested housings and covers | Layered cartons or custom skids | Medium | Limited | Control nesting pressure and abrasion. |
| Large thin-wall assemblies | Custom racks or crates | Low | Non-stackable | Brace against warping and point loads. |
plastic parts shipping options
Choosing a Shipping Method for Plastic Parts
The right service depends on plastic parts size, packaging, stackability, and handling needs.
| Plastic Parts shipment | Common shipping option |
|---|---|
| Small boxed components | Standard LTL |
| Precision machined parts | Protected LTL |
| Nested molded housings | LTL with packaging review |
| Large thin-wall assemblies | Dedicated or specialized service |
Large, irregular, non-stackable, unusually valuable, or specially handled plastic parts shipments may need carrier review before booking.
Plastic Parts shipment examples
Plastic Parts Freight Class Examples
These examples use packaged outside dimensions and the site’s density-to-class chart. They are examples only, not fixed classes for all plastic parts shipments.
Dense boxed components
Small molded or machined plastic parts in cartons
48 × 40 × 36 in
Packaged weight: 1700 lb
- Cubic feet
- 40.00
- Density
- 42.50 lb/cu ft
Estimated class
Density-based
70
Nested molded housings
Nested housings with moderate cube
48 × 40 × 60 in
Packaged weight: 1050 lb
- Cubic feet
- 66.67
- Density
- 15.75 lb/cu ft
Estimated class
Density-based
70
Bulky thin-wall parts
Large lightweight molded assemblies
72 × 48 × 72 in
Packaged weight: 450 lb
- Cubic feet
- 144.00
- Density
- 3.12 lb/cu ft
Estimated class
Density-based
250
Plastic Parts Packaging
- Use partitions, foam, trays, returnable bins, fitted cartons, or custom racks matched to the part geometry.
- Separate polished, clear, painted, textured, or Class-A surfaces with nonabrasive film or dividers.
- Support thin walls, bosses, tabs, flanges, and long molded sections so banding and pallet pressure do not distort them.
Plastic Parts Stackability
- Small boxed parts may stack when cartons are full, square, and compression-rated.
- Nested housings should accept top load only when nesting stops and load paths prevent rim or wall deformation.
- Treat large thin-wall panels, exposed tabs, unsupported flanges, and custom racks as limited-stack or non-stackable.
Plastic Parts Surface, Tolerance, Distortion, and Feature Protection
- Prevent cracking, stress whitening, scuffing, warping, boss breakage, thread damage, and clip deformation.
- Protect dimensional tolerances, optical or Class-A surfaces, bonded inserts, and heat-sensitive geometries.
- Document resin, part number, quantity, nesting orientation, surface requirement, dimensions, and temperature limits.
Measure the fully packaged plastic parts shipment
- Measure after all cartons, trays, bins, racks, pallets, spacers, and protective films are installed.
- Include part projections, rack posts, edge guards, nested-stack bulges, and any overhang.
- Use the total packaged weight of parts, packaging, racks, pallet, and securement.
Before Requesting a Plastic Parts Freight Quote
- Measure the finished carton group, returnable-bin pallet, nested-housing load, or custom part rack.
- Record the total packaged weight and part count for the complete plastic parts shipment.
- State whether cartons or nests are stackable or whether thin walls, tabs, flanges, or Class-A surfaces require limited stack.
- Include photos of surface protection, bosses, clips, flanges, nesting stops, rack supports, and labels.
- Confirm temperature limits, clean handling, clamp restrictions, forklift, liftgate, and appointment requirements.
Calculate your actual shipment
Calculate Plastic Parts Freight Class
The calculator returns cubic feet, pounds per cubic foot, and a density-based freight class estimate for your plastic parts shipment.
Freight classes shown on this page are density-based estimates for shipment planning. Actual classification may also depend on value, handling requirements, liability, stowability, dimensions, and other commodity-specific factors. Confirm the final freight class with your carrier, broker, or official NMFC resources before shipping.
NMFC® is a registered trademark of the National Motor Freight Traffic Association, Inc. FreightClassCalculator.tools is an independent calculator and is not affiliated with, endorsed by, or licensed by NMFTA.