READING NOTES
Identify the intended position
A mattress is commonly considered for surface protection along beds and slopes, while gabion boxes are used in deeper stone filled arrangements, including retaining works. These descriptions help organise an enquiry; they do not establish which system a particular river site needs.
Compare the approved geometry
Review thickness or height, unit footprint and internal divisions on the project drawings. Include transitions at the toe, crest and ends. Replacing one unit type with another changes the section and should return to the designer for review.
DECISION TABLE
Confirm the parameters against the project
Start with the application, then carry the required checks into the enquiry.Swipe horizontally on mobile to view the full table| Decision area | What to assess | Confirm in the enquiry |
|---|---|---|
| Application | Define the actual application | Environment, function and installation |
| Specification | Confirm product and dimensions | Material, specification, quantity and tolerance |
| Delivery | Align packing and destination | Timing, packing, drawings or photos |
Include the hydraulic brief
Provide the site assessment and the project's specified protection requirements. Ask how the selected unit, fill, underlying layers and termination details form the complete design. Avoid comparing a mattress and a box solely through mesh price or stone volume.
Align supply with construction
Confirm assembly form, closure components and the contractor's access for filling. Schedule the units by drawing location so similar looking packages are not confused on site. If a substitution is approved, update the unit schedule and associated stone quantities together, preserving a clear record of the revised design basis.
QUOTE CHECKLIST
Prepare for a quote
- Application and safety level
- Total run and segments
- Fence height and opening
- Wire and finish
- Posts, spacing and footing
- Gates, corners and terrain
- Quantity, packing and destination
- Drawings, photos and lead time