8-Ton Rock Bag
The 8-Ton Texas Tuff Rock Bag — roughly 6.0 m³ of rock in a 3.0 m sphere — is the heavy unit, built with quad-layer 50 mm mesh and 16 mm lifting rope for the most demanding marine and subsea conditions.
Built for the most demanding conditions
The 8-Ton is the unit for severe exposure: offshore cable and monopile scour protection, subsea pipeline and platform armor, and high-energy coastal works where grouped currents approach 19.4 ft/s. Its mass keeps it stable through tidal and storm loading, and it conforms to seabed change rather than fracturing under it the way rigid concrete mattresses do.
It's the only size built with quad-layer 50 mm mesh and upgraded 16 mm lifting rope, so it can be lowered and placed from a vessel by crane or ROV and hold position on a mobile seabed. For onshore and shallower work the 4-Ton is usually the more economical choice.
8-Ton specifications
Engineering data ready to drop into a specification package. Download the full PDF spec sheet for project documentation.
| Nominal filled weight | ~8 tonnes |
|---|---|
| Fill volume | 6.0 m³ |
| Filled diameter | 3.0 m |
| Mesh aperture | 50 mm |
| Mesh layers | Quad-layer |
| Mesh construction | Raschel-weave virgin polyester |
| Lifting rope | 16 mm, single-point |
| Grouped current resistance | 19.4 ft/s |
| In-water design life | Long-term |
Full dimensions, materials, and hydraulic ratings for the 8-Ton.
Download spec sheetsEngineered mesh, not a sandbag.
Virgin polyester mesh
Raschel-weave virgin polymer — not recycled — for high UV and strong abrasion resistance in fresh and saline water, and a mesh that won't unravel if a strand is cut.
Single-point lift
Reinforced rope at a single lifting point gives operators highly controlled, precise placement — by excavator or crane, on land or in the wet.
Conforms to the bed
Filled on-site with local or supplied rock, the bag settles and conforms to scour and bed change instead of cracking like rigid concrete.
See the full material construction, standards, and testing on the specifications page.
8-Ton — common questions
What makes the 8-Ton different from the smaller bags?
Beyond its mass, the 8-Ton uses quad-layer 50 mm mesh and heavier 16 mm lifting rope built for subsea placement and high-energy loading — see the offshore application for detail.
Can the 8-Ton be placed offshore from a vessel?
Yes. It's designed to be lowered and placed by crane or ROV from a vessel, conforming to seabed topography and holding position through tidal and storm currents — the core requirement for cable, pipeline, and monopile protection.
Is the 8-Ton overkill for a riverbank or bridge?
Usually. For most onshore bridge and riverbank work the 4-Ton is more economical and easier to place. Reserve the 8-Ton for severe currents, deep water, and offshore exposure.
Compare the other sizes.
Light scour, small streambanks, residential and lakefront projects.
View Top pickMost-specified size — streambanks, shoreline revetment, and light-to-moderate scour.
ViewHeavy-civil size — bridges, riverbanks, and port toes in higher-energy conditions.
ViewOffshore, oil & gas, and severe-current coastal applications.
You're hereProject-specific applications where standard sizes don't fit. Talk to engineering for sizing.
ViewGet a quote on the 8-Ton.
Send your hydraulics, depth, and placement method and our engineering team will confirm sizing, lead time, and pricing — usually within one business day. Stocked inventory, fast lead times.