Conveyored Materials Company of Idaho CMCI

Based in Nampa, Idaho, Conveyored Materials Company of Idaho CMCI supplies sand and gravel to homeowners, landscapers and contractors across the area. Google lists the business as a Sand & gravel supplier.

The business holds a 4.6-star Google rating from 59 reviews. That tracks close to the Idaho average of 4.6 across the 145 suppliers we list statewide.

What Conveyored Materials Company of Idaho CMCI supplies

Aggregate yards carry crushed stone, pea gravel, road base, mason sand, concrete sand and structural fill. Material is graded by particle size, and the correct grade depends entirely on whether you are building a compacted base, a drainage layer or a walking surface.

Road base (often called crusher run or 21AA) compacts hard and is the right choice under pavers or driveways. Clean washed stone such as #57 drains freely and is used for French drains and trench backfill. Pea gravel looks good underfoot but migrates and needs edging to stay put.

How much material you need

Sand and gravel is sold by the ton. Aggregate is sold by weight, not volume — one cubic yard of crushed stone runs roughly 1.4 tons.

As a rough guide: 1 ton covers about 100 sq ft at 2 in; 5 tons covers about 500 sq ft at 2 in; 20 tons covers about 2,000 sq ft at 2 in.

Have length, width and target depth ready when you phone. Yard staff convert those into tons far more reliably than a generic online calculator, and they know how their own material settles.

Ordering and delivery

Ask about delivery minimums and trip charges up front — for smaller orders these often matter more to the final bill than the headline per-ton price.

Check where the truck can actually dump. Tandem trucks need overhead clearance and firm ground, and most drivers will not reverse across a soft lawn or a new driveway. If access is tight, ask whether they run a smaller truck or can leave the load at the kerb.

Pricing for bulk material is rarely published in full, since it moves with stock and season. The business website may list current products, but a phone call will get you a firm delivered number faster.

Ratings and reputation

Of the 59 reviews on file, 52 are five-star (88%) and 1 are four-star. 6 reviews sit at one or two stars, and those are worth reading directly — complaints at material yards usually concern delivery timing or short loads rather than the product itself.

Among the suppliers we list across Idaho, this rating places Conveyored Materials Company of Idaho CMCI in the top 61%.

Across the 25 suppliers we list in Nampa, the average rating is 4.5.

Review volume matters as much as the score. A 4.6 drawn from 59 reviews reflects a substantial track record.

Hours and visiting the yard

Conveyored Materials Company of Idaho CMCI is open 6 days a week, closed on Sunday. The yard opens as early as 7 AM and runs until 5 PM, early enough to load before a normal work day begins.

Saturday opening makes this a practical option for weekend projects — a real advantage, since plenty of bulk yards shut for the weekend and leave homeowners unable to collect material outside working hours.

Loading is weather-dependent whatever the posted hours say. Heavy rain turns yards to mud and makes wet material heavier and harder to spread, so call the same morning if conditions look poor.

Best time to buy in Idaho

In Idaho, the buying window is compressed. Yards get busiest from the first thaw through early June, and again briefly in autumn. Ordering sand and gravel in early spring often means waiting in a queue and paying peak rates, so booking delivery before the rush — or in late autumn for spring work — usually gets both a better price and a firmer delivery date. Many yards in colder states reduce hours or close outright through deep winter, so confirm seasonal availability before planning a January or February project.

Other suppliers nearby

There are 6 other suppliers we list within a short drive, the closest being Timber Creek Recycling LLC Nampa Idaho in Nampa, roughly 1.1 miles away. 96 suppliers sit within a 25-mile radius of this yard.

If this yard is short on what you need, the suppliers listed below carry overlapping inventory and will often deliver into the same area.

Buying sand and gravel in Nampa

We list 25 bulk suppliers in Nampa and 145 across Idaho, spread over 46 cities and towns.

Bulk material pricing is intensely local. Trucking is a large share of the delivered cost, which is why a nearby yard usually beats a cheaper one further out once the full quote lands.