Iron Star Materials

Based in San Marcos, Texas, Iron Star Materials 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 5.0-star Google rating from 1 review. That sits above the Texas average of 4.5 measured across 1,358 listed suppliers.

What Iron Star Materials 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.

Hours and visiting the yard

Iron Star Materials is open 7 days a week. The yard opens as early as 7 AM and runs until 6 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 Texas

Texas's longer growing season spreads demand across more of the year, which generally means better availability than northern markets. Even so, spring remains the peak for sand and gravel, and summer heat makes midday loading and installation punishing — early-morning pickups are worth the alarm clock. Autumn and winter are frequently the best value windows, with shorter queues and more flexible delivery scheduling.

Other suppliers nearby

There are 6 other suppliers we list within a short drive, the closest being Rivera’s bobcat and hauling services in San Marcos, roughly 0.6 miles away. 55 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 San Marcos

We list 14 bulk suppliers in San Marcos and 1,358 across Texas, spread over 316 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.