Basket count, fill-stone tonnage, lacing and cost for a gabion gravity wall.
Estimates are planning aids, not a professional quote. Double-check quantities and product coverage — and any local code or permit requirements — before you buy.
⚠ Set baskets on firm, undisturbed soil (or a compacted gravel pad on fill) — a gabion wall holds by friction and mass, so any soft spot under the base settles unevenly and opens the face joints.
⚠ Have utility lines marked before excavating the base trench, and grade so runoff sheds away from the wall rather than pooling behind it.
| Posts & Panels | $1,245–$1,685 |
| Soil & Fill | $468–$633 |
| Fasteners & Hardware | $196–$265 |
| Membrane & Fabric | $47–$63 |
| Total | $1,955–$2,645 |
Excludes tools, delivery, tax and permit fees. Labor not included — this is a DIY materials estimate.
These are affiliate links: we may earn a commission if you buy through them, at no extra cost to you. It never changes what the calculator recommends — the shopping list comes from your dimensions, not from what pays.
About this calculator
Enter a gabion wall's length, height and basket depth and this calculator lays out the whole build: how many welded-wire baskets to buy at the size you pick, how many tons of rock fill the cages, the lacing wire or spiral binders that hold each basket's panels shut, and the geotextile fabric that keeps backfill from washing into the stone. A gabion wall resists by its own mass rather than by interlocking block, so the fill tonnage and basket count are the whole estimate — there's no cap course or adhesive to price.
Turn on the batter option to step the upper courses back to a shallower basket, which is how real gravity walls taper their mass toward the top instead of stacking the same heavy cage all the way up. Choose 4–8 in or 6–12 in fill rock, since the two pack to different bulk densities and change the tonnage for an identical cage volume, and pick wire or spiral lacing for how the panels get tied shut. Walls past about 8 ft move into engineered territory — this stays a materials estimate, not a stamped design.
Step by step
A step-by-step walkthrough to go with your plan above. Follow the product instructions and any local code or permit requirements as you work.
Mark the wall line with stakes and string, have utilities located, and dig a trench wide enough for the basket depth plus working room on each side, deep enough for a compacted pad under the base course.
Fill the trench with crushed stone or well-compacted native soil and run a plate compactor over it until it's firm and level in both directions — this is what keeps the whole wall from settling unevenly.
Fold the flat-packed panels into a box, wire or spiral-lace the corners shut, and set the empty cages on the pad. Brace them square with stakes or scrap lumber so they don't rack while you fill.
For any basket over about 3 ft long, wire in the internal diaphragm panel that divides it into cells — this is what keeps the fill from bulging the mesh once it's loaded.
Hand-place a course or two of larger, flatter stone against the visible face for a clean look, then loose-fill the rest of the cage behind it in stages, tamping lightly as you go rather than dumping it all at once.
Once a basket is full and slightly crowned (fill settles a little), close the lid panel under tension with wire or spirals so the mesh can't work loose as the stone shifts.
Set the next course's baskets back onto the fill of the one below, using a shallower cage if this course is inside the batter zone, and repeat the tie-fill-lace sequence.
Roll geotextile up the excavated face behind the top of the wall before backfilling, and grade the finished surface to shed water away from the wall rather than toward it.
Equip the job
Hand-picked categories that match the shopping list above. Links open a current selection so you can compare brands and prices.
These are affiliate links: we may earn a commission if you buy through them, at no extra cost to you. It never changes what the calculator recommends — the shopping list comes from your dimensions, not from what pays.
As an Amazon Associate I earn from qualifying purchases. We may also earn from other retailer links here. This doesn’t change your price and helps keep these planners free.
Keep planning
Fencing & Privacy
Answers
Multiply the cage volume — wall length times height times basket depth — by the bulk density of your fill rock, then convert to tons. Rock isn't solid inside a basket; it packs with air space between pieces, so bulk density (not solid rock density) is what matters, and it runs roughly 100–110 lb per cubic foot for typical 4–12 in fill. This calculator does that conversion for you and adds a settling allowance, since loose fill compacts a bit after the first season.
Basket depth (front-to-back) is what sets both stability and stone volume, and it comes in standard tiers — 18 in, 3 ft and 4.5 ft are what suppliers actually stock. Deeper baskets at the base give a wider footprint for a taller wall to resist overturning; shallower baskets are common for the upper, battered courses where less mass is needed. Basket length (6 or 9 ft) is mostly a handling and shipping choice — longer baskets mean fewer units to assemble but are heavier to maneuver into place empty.
Both close the seams where basket panels meet and tie internal diaphragms in place — the choice is speed versus tradition. Lacing wire is twisted tight with pliers a few inches at a time and is what most manufacturers ship as standard; it's cheap and forgiving but slow on a long run. Spiral (helical) binders spin into the mesh with a dedicated tool in a fraction of the time and hold just as well, which is why crews doing multiple baskets a day usually switch to them.
There's no single number, but most DIY guidance treats roughly 6 ft as where you should start getting a geotechnical opinion, and 8–10 ft as where you need one plus a permit in most jurisdictions. Gabion walls are more forgiving of minor settlement than rigid block or poured concrete, which is part of their appeal, but overturning and sliding are still real failure modes once a wall gets tall — the batter and base width both have to be sized to the actual soil, not guessed.
A layer of non-woven geotextile fabric between the baskets and the excavated soil face, running up the back and under the base, so backfill can't wash through the mesh and into the stone over time. Unlike a poured or block wall, a gabion structure is intentionally free-draining — water passes through the rockfill instead of building up hydrostatic pressure behind it, which is one of the reasons it needs no separate drain pipe the way a sealed wall does.