When Nets Beat Straps
Cargo nets solve a problem that straps can’t: securing multiple small, irregularly shaped items that would require dozens of individual tie-downs. A single cargo net can secure a pallet of boxes, a pile of landscaping debris, a truck bed full of tools, or a trailer load of loose items — situations where individual straps would be impractical or impossible.
Cargo Net Types
Mesh Cargo Nets (Open Weave)
Elasticized or fixed-mesh nets with attachment hooks at the perimeter. The most common type for pickup trucks and utility trailers.
| Feature | Elasticized Net | Fixed Mesh Net |
|---|---|---|
| Stretch | 25-50% beyond nominal size | Minimal |
| Holding force | Light (containment only) | Moderate (active restraint) |
| Best for | Truck beds, SUV cargo areas | Trailers, flatbeds |
| Capacity | 200-500 lbs (containment) | 1,000-5,000 lbs (restraint) |
Heavy-Duty Cargo Nets (Industrial)
Made from 1-2″ polyester or nylon webbing with reinforced stitching at intersections. Rated for specific WLL values and used in commercial trucking, military transport, and air cargo.
- Flatbed cargo nets: Cover the entire load, anchor to trailer edge rails or D-rings
- Pallet containment nets: Stretch over palletized cargo to prevent individual items from shifting
- Military cargo nets: MIL-SPEC rated, designed for airdrop and vehicle transport
Specialty Nets
- Debris nets: Fine mesh that prevents small items (gravel, mulch, leaves) from blowing off during transport
- Hay nets: Designed for round or square hay bale transport with specific anchor point configurations
- Container nets: Vertical nets for inside shipping containers, preventing cargo shift during ocean transport
- Aircraft cargo nets: TSO-certified nets rated to specific g-loads for aviation use
Net vs Strap: Decision Guide
| Scenario | Best Choice | Why |
|---|---|---|
| Single heavy item (machinery, coil) | Straps/chains | Need precise tension and WLL control |
| Multiple loose items (boxes, bags) | Cargo net | One net covers all items |
| Irregularly shaped load | Net + perimeter straps | Net contains, straps provide rated restraint |
| Flatbed with uniform cargo | Straps | Better WLL control, DOT compliance |
| Pickup truck bed (personal use) | Cargo net | Quick, easy, covers everything |
| Landscaping debris | Debris net | Prevents blowout of small particles |
| Palletized freight | Net + straps | Net prevents item shift, straps secure pallet to trailer |
Cargo Net Sizing
Pickup Truck Beds
- Short bed (5.5-6 ft): 4′ x 6′ or 5′ x 7′ net
- Standard bed (6.5 ft): 5′ x 8′ or 6′ x 8′ net
- Long bed (8 ft): 6′ x 10′ or 7′ x 11′ net
For elasticized nets, choose a nominal size 25-30% smaller than the bed — the stretch provides tension.
Trailers
For fixed-mesh industrial nets, measure the load dimensions and add 2 feet on each side for proper draping and anchor point access.
Attachment Methods
- S-hooks: Quick attachment to bed rails, D-rings, or stake pockets. Can vibrate loose — use with caution.
- Carabiner clips: More secure than S-hooks, easier to attach/detach. Preferred for frequent use.
- Ratchet tensioners: Some industrial nets include integrated ratchet straps at the perimeter for active tensioning.
- Bungee cord perimeter: Elasticized nets often have a bungee cord sewn into the edge for universal fit.
Legal Considerations
For commercial cargo securement (FMCSA-regulated vehicles), cargo nets alone may not satisfy tie-down requirements:
- Nets must have a rated WLL marked on them
- The aggregate WLL of the net must meet the 50% of cargo weight requirement
- Many elasticized consumer nets do NOT have a rated WLL and therefore do NOT meet FMCSA requirements
- For DOT compliance, use rated industrial cargo nets in combination with conventional tie-downs
Maintenance
- Inspect webbing for cuts, fraying, and UV damage before each use
- Check hooks and attachment hardware for deformation
- Wash with mild soap and water if contaminated with chemicals or abrasive materials
- Store out of direct sunlight when not in use
- Replace elasticized nets when they lose their stretch (typically 2-3 years)
- Replace industrial nets per manufacturer recommendations or when any webbing is damaged
Common Mistakes to Avoid
Avoiding these common errors can prevent equipment failure, regulatory violations, and serious safety incidents in the field.
- Insufficient Aggregate WLL: FMCSA requires total WLL of all tie-downs to equal at least 50% of cargo weight. For a 40,000 lb load, you need at least 20,000 lbs of total tie-down WLL, which could be 10 ratchet straps rated at 2,000 lbs each.
- Relying Solely on Friction: While friction helps (rubber mats provide coefficient of 0.6-0.7), it cannot be the only securement. FMCSA requires positive securement devices in addition to friction to prevent cargo movement during emergency maneuvers.
- Not Securing Against All Directions: Cargo must be secured against forward, rearward, lateral, and vertical movement. Many drivers only secure against forward movement. Use a combination of direct tie-downs and blocking or bracing to prevent movement in all four directions.
- Wrong Securement for Cylindrical Loads: Coils, pipes, and drums require specialized methods per FMCSA 393.120. They cannot be secured like boxed cargo. Coils must use at minimum one tie-down per coil for eye-up positioning, or specific blocking arrangements for other positions.
- Failing to Re-Check Tie-Downs: FMCSA requires inspection within the first 50 miles and every 3 hours or 150 miles thereafter. Straps loosen due to load settling, vibration, and temperature changes. A tight strap at departure can be dangerously loose after 100 miles.
Frequently Asked Questions
When should I use a cargo net instead of ratchet straps?
Cargo nets excel at securing multiple small, loose items that would require dozens of individual straps — such as boxes, bags, irregularly shaped items, or debris loads. They also prevent items from shifting sideways between straps. Use ratchet straps for large, heavy, solid items that need high-tension direct restraint. For mixed loads, use a combination: ratchet straps to secure the main load and a cargo net over the top to contain smaller items.
What is the WLL rating of a typical cargo net?
Standard 4×6 foot cargo nets are rated at 1,000-2,000 lbs total containment force. Heavy-duty 6×8 foot nets for flatbed use are rated at 3,000-5,000 lbs. Webbing nets with ratchet tensioners offer higher ratings than bungee-style nets. Note that net WLL is a containment rating, not a securement rating — nets prevent items from falling off but may not meet FMCSA aggregate WLL requirements alone. Supplement with direct tie-downs for heavy cargo.
Are cargo nets DOT-compliant as a primary securement method?
Cargo nets alone rarely meet FMCSA 49 CFR 393 requirements as primary securement because their aggregate WLL is typically insufficient for heavy loads. However, they are DOT-compliant as supplemental securement and are specifically useful for meeting the requirement to prevent cargo from shifting or falling. For loads like landscaping debris, recycling materials, or bagged goods, nets combined with edge containment may satisfy the total securement requirement.