Natural boulder retaining wall construction for hillside stability and erosion control featuring boulder placement sequencing for slope retention and natural aesthetics in Post Falls, Coeur d'Alene, and North Idaho

Hardscaping / Boulder Walls · Wallace, ID

Natural Boulder Retaining Walls in Wallace

Excavator-placed natural boulder retaining walls and landscape features for North Idaho homeowners. Regionally sourced basalt and granite. Wallace, Shoshone County. Family-owned LandscapePros since 2005.

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Why LandscapePros in Wallace

Natural Boulder Retaining Walls built for Shoshone County ground

The historic charm of Wallace is matched by its incredibly challenging, narrow geography tucked tightly between towering mountains and the I-90 viaduct. Excavation in this iconic Shoshone County town often involves working in extremely tight quarters with vertical rock faces, requiring precise rock-breaking and shoring techniques to protect adjacent Wallace historic structures. It's a game of inches in Wallace, and our operators are some of the few in the region with the patience to dig around century-old infrastructure.

That local read is the part that matters. Every natural boulder retaining walls job we take on in Wallace starts with the same discipline: read the soil, read the drainage, and read what the freeze-thaw cycle will do to the finished work three winters from now. Family-owned since 2005 and still run by the Gladish family — the same crew that walks your property is the crew that builds it.

Excavation and grading work for site preparation featuring precision grading for drainage direction and compaction readiness in Post Falls, Coeur d'Alene, and North Idaho

How We Work

From raw ground to finished natural boulder retaining walls

01

We walk the site

A free on-site estimate in Wallace. We measure access, slope, existing grades, and drainage paths — the things that actually move the number on your quote.
02

You get a written spec

Itemized materials, quantities, and labor — no lump sum, no “we’ll figure it out later.” You know exactly what you’re approving before anyone breaks ground.
03

We build and hand it over

Satisfaction Guaranteed. If something isn’t right, we come back and fix it. That’s been the deal since 2005.

Recent Work

Natural Boulder Retaining Walls across North Idaho

Patio and paving installation with custom stone layout and edge definition featuring stone layout geometry with clean joints and edge restraint in Post Falls, Coeur d'Alene, and North Idaho

Landscaping project image featuring seasonal color layering supporting strong seasonal resilience in Post Falls, Coeur d'Alene, and North Idaho

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Common Questions

Natural Boulder Retaining Walls questions, answered

How much does a natural boulder retaining wall cost in North Idaho?

Natural boulder wall costs in Shoshone run $30–$65+ per square foot of wall face depending on boulder size, site access, slope conditions, and equipment requirements. Larger boulders (1+ ton) require a larger excavator and more operator time per unit placed. On rural properties where regional basalt or granite is available nearby, material costs can be lower. LandscapePros provides written estimates after an on-site assessment — boulder wall costs vary significantly by site.

Are boulder walls structural, or only decorative?

Large boulder walls are structural. LandscapePros boulder wall builds for slope retention use boulders heavy enough to provide mass-gravity resistance — the same principle as a gabion or gravity block wall, but with natural material. Proper base excavation, base course depth, and drainage behind the wall are all engineered for the specific slope and load conditions. Smaller boulder courses (under 2 feet) are used for garden terracing and landscape definition where structural load requirements are lower.

What type of boulders does LandscapePros use in North Idaho?

LandscapePros sources primarily basalt, granite, and quartzite boulders from North Idaho and Pacific Northwest quarries. Basalt is the most abundant and cost-effective option — its charcoal-to-blue-gray color integrates naturally with North Idaho landscape. Granite fieldstone provides a lighter, warm-toned alternative. LandscapePros recommends regional stone sourcing over imported materials — it looks correct in a North Idaho landscape and reduces transport costs.

Can a boulder wall be built on a steep slope?

Yes — boulder walls are often the preferred solution on steep slopes where block systems would require excessive geogrid reinforcement and engineered fills. LandscapePros excavator can access and work on slopes that would be difficult for manual block installation. Base course excavation, slope preparation, and drainage routing are handled as part of the boulder wall scope. Steeper slopes may require a terrace approach with multiple wall tiers rather than a single tall wall.

Do boulder walls require a permit in Shoshone?

Permit requirements for retaining walls in Shoshone are based on wall height, not material type. Walls over 4 feet in height (measured from bottom of footing to top) in most residential zones require a permit. Boulder walls within setback areas or supporting a surcharge (like a driveway) may have additional requirements. LandscapePros researches permit requirements for your specific parcel and handles permit application coordination as part of the project scope.

Related Services in Wallace

Segmental Block Retaining Walls

Segmental block retaining wall contractor for Wallace and Shoshone County across North Idaho. Allan Block, Versa-Lok, and timber deadman systems built with geogrid reinforcement for Idaho freeze-thaw. Family-owned LandscapePros since 2005.

Paver Patios & Paths

Interlocking concrete paver patio and path installation in Wallace and Shoshone County across North Idaho. Frost-flex engineered paver systems. Family-owned LandscapePros since 2005.

Flagstone & Natural Stone Patios

Flagstone and natural stone patio, pathway, and step installation in Wallace and Shoshone County across North Idaho. Basalt, bluestone, irregular flagstone — dry-laid and mortar-set. LandscapePros since 2005.

Poured Concrete Patios & Flatwork

Poured concrete patio, flatwork, and outdoor slab installation in Wallace and Shoshone County across North Idaho. Broom, exposed aggregate, and stamped finishes. Family-owned LandscapePros since 2005.

Permeable Pavement & PICP

Permeable interlocking concrete pavement (PICP) and pervious hardscape installation in Wallace and Shoshone County across North Idaho. Stormwater-compliant surfaces that manage runoff at the source. LandscapePros since 2005.

Culverts & Creek Crossings

Culvert installation, driveway crossing construction, and stone-clad creek bridge work in Wallace and Shoshone County across North Idaho. Seasonal creek crossing and drainage pipe sizing for rural and residential properties. Family-owned LandscapePros since 2005.

Nearby Shoshone County Service Areas

Kellogg Pinehurst Osburn Smelterville All Service Areas

Free Estimate

Get your boulder wall project scoped.

Free, no-obligation, and specific to your Wallace property. We visit, we measure, we write it down.