The 4'×8' (1220×2440 mm) panel is the workhorse of the ground protection mat industry — the size that balances coverage efficiency, man-handleable weight, and container-loading optimisation. But within that standard footprint, thickness varies from 10 mm to 25 mm+, and the right thickness is what determines whether the mat supports a golf cart or a 120-ton crane. This guide demystifies 4×8 mat sizing and thickness selection.
Why 4'×8' (1220×2440mm) Is the Standard
The 4×8 foot panel dominates for sound engineering and logistical reasons:
- Coverage efficiency — 2.97 m² per panel, efficient for roadways and platforms
- Man-handleable weight — 30–45 kg depending on thickness, two-person carry
- Container optimisation — packs efficiently into standard ISO containers for export
- Vehicle envelope — matches the width and turning envelope of standard construction vehicles
- Industry familiarity — crews, connectors, and accessories are all designed around 4×8
While other sizes exist (3×8, 2×8, 3×6, 2×4, and custom large-format), 4×8 is the default specification for general ground protection.
Common 4×8 Sizes & Variants
| Size (mm) | Size (ft) | Typical use |
|---|---|---|
| 1220×2440 | 4'×8' | Standard road mat — the industry default |
| 910×2440 | 3'×8' | Narrower access, lighter handling |
| 610×2440 | 2'×8' | Pedestrian walkways, tight spaces |
| 910×1830 | 3'×6' | Smaller panels for confined work |
| 610×1220 | 2'×4' | Mini mats for hand-carry access |
| Custom large-format | Up to 6000×2000 | Big-panel composite systems |
Thickness Selection: The Critical Decision
Within the 4×8 footprint, thickness is the primary load-determining variable. The rule: match thickness to the heaviest equipment and the softest ground condition.
Thickness tiers and their applications
- 10 mm: Pedestrian use, light vehicles, golf carts, event walkways, turf protection
- 12 mm: General pedestrian and light vehicle access; the NZ/European standard (Euromat, ProtectaMat)
- 12.7 mm (1/2"): The North American standard (AlturnaMATS) — 60-ton capacity, lifetime guarantee
- 15 mm: General construction, pickup trucks, rubber-tracked equipment, utility work
- 18 mm: Heavy construction, steel-tracked excavators, loaded trucks
- 20 mm: Cranes, heavy trucks, soft or wet ground, repeated heavy use
- 25 mm+: Heavy-duty crane pads, drilling rigs, mining access
Weight by Thickness
Thickness directly affects panel weight — and thus handling logistics:
| Thickness | Approx. weight (4×8 HDPE) | Handling |
|---|---|---|
| 10 mm | ~30 kg | Two-person, easy |
| 12 mm | ~35 kg | Two-person, standard |
| 12.7 mm | ~40 kg | Two-person |
| 15 mm | ~42 kg | Two-person, firmer |
| 18 mm | ~48 kg | Two-person, mechanical assist optional |
| 20 mm | ~52 kg | Mechanical handling preferred |
| 25 mm+ | ~60 kg+ | Mechanical handling required |
Matching Thickness to Equipment
| Equipment | Recommended thickness | Material |
|---|---|---|
| Pedestrians, wheelchairs | 10–12 mm | HDPE or LDPE |
| Golf carts, ATVs | 10–12 mm | HDPE |
| Pickup trucks, vans | 12–15 mm | HDPE |
| Mini excavators (rubber track) | 12–15 mm | HDPE |
| Skid steers, CTLs | 12–15 mm | HDPE |
| Standard excavators (10–25t) | 15–20 mm | HDPE or UHMWPE |
| Loaded dump trucks | 18–20 mm | HDPE/UHMWPE |
| Mobile cranes (to 80t) | 20 mm | UHMWPE |
| Crawler cranes (80t+) | 20 mm+ or composite | UHMWPE or composite |
| Drilling rigs, mining trucks | Composite rig mat | Composite |
Ground Condition Adjustment
Thickness selection must also account for ground firmness — softer ground requires thicker mats (or wider composite mats) to distribute load:
- Firm ground (CBR 5+): Standard thickness per equipment table
- Soft ground (CBR 2–5): Step up one thickness tier
- Very soft ground (CBR <2): Step up two tiers, or use composite rig mats
- Saturated/wet ground: Always step up one tier; consider geotextile underlay
The "Half-Inch" Standard: 12.7mm in North America
In North America, the 1/2" (12.7 mm) HDPE mat is the dominant standard — typified by AlturnaMATS, which offers a lifetime guarantee on its 1/2" 100% recycled polyethylene panels rated to 60 tons. This single specification covers a huge range of construction, utility, and landscaping applications, and is the default for North American hire fleets.
Specifying 4×8 Mats
- Start with 4×8 (1220×2440) unless space or logistics demand otherwise
- Identify the heaviest equipment and select thickness from the equipment table
- Adjust for ground firmness — step up a tier on soft or wet ground
- Choose HDPE for general use; UHMWPE for steel tracks or heavy loads
- Verify panel weight is manageable for your crew or handling equipment
- Specify connection system — 4-way for vehicle roadways
- Request container-loading plan for volume orders
Frequently Asked Questions
What is the standard size of a ground protection mat?
The 4'×8' (1220×2440 mm) panel is the industry standard — balancing coverage efficiency (~3 m² per panel), man-handleable weight (30–45 kg), and container-loading optimisation. Other common sizes include 3×8, 2×8, 3×6, and 2×4 for specialised applications.
How thick should a 4×8 ground protection mat be?
Match thickness to your heaviest equipment: 10–12 mm for pedestrians and light vehicles, 12–15 mm for pickup trucks and rubber-tracked equipment, 15–20 mm for standard excavators and loaded trucks, 20 mm+ for cranes and heavy equipment. Step up one tier on soft or wet ground.
Why is 12.7mm (1/2") the standard in North America?
The 1/2" (12.7 mm) HDPE mat — typified by AlturnaMATS with a lifetime guarantee and 60-ton rating — covers a huge range of construction, utility, and landscaping applications in a single specification. It is the default for North American hire fleets and the most widely stocked 4×8 thickness in the region.
How much does a 4×8 HDPE mat weigh?
Approximately 30 kg at 10 mm, 35 kg at 12 mm, 40 kg at 12.7 mm, 42 kg at 15 mm, 48 kg at 18 mm, and 52 kg at 20 mm. Panels above ~50 kg generally require mechanical handling rather than two-person carry.
Get a Quote for HDPE Ground Protection Mats
RUIYANG manufactures HDPE, UHMWPE and FRAS composite mats for construction, oilfield, mining, events and civil projects worldwide. Tell us your load, ground and quantity — we reply with specifications and factory-direct pricing.