Gravel & Rock Delivery in Key West

Key West is the end of US-1 and about a hundred and ninety miles from our yard — the longest haul we run and one we plan properly.

It is also the most access-constrained city we deliver into. Old Town streets were laid out in the nineteenth century, they are narrow, the houses sit close to the road, and much of the area is under historic district review.

Building in Key West

Old Town and the historic district are the defining challenge and the defining character. Renovation there operates under Historic Architectural Review Commission oversight, which governs what can be changed and how, and the streets themselves were built for horses.

The material demand is real but the quantities per job are modest and the deliveries are delicate: base for driveways and patios, sand and pea rock for courtyards and landscaping, #57 for the drainage problems that come with old buildings on low ground.

New Town, along the North Roosevelt corridor and out toward the airport, is the opposite — conventional twentieth-century development with normal streets, commercial property and pavement work at proper quantities. Crushed concrete and limerock base for parking and pads.

The waterfront and the harbour generate marine work and rip rap demand, and the island's exposure means shoreline protection is a continuing concern.

Stock Island, immediately adjacent, carries much of the working industry — boatyards, marine services, workforce housing development — and orders more like a conventional market.

Materials we deliver to Key West

We carry 21 materials and will haul any of them here. These are the six Key West orders most, with the specification detail you need to order correctly the first time.

Limerock Base in Key West

The material South Florida is built on. If it is paved, there is almost certainly limerock underneath it.

Limerock is mined limestone crushed and graded so that it runs the full range from roughly three and a half inches down to powder. That full gradation is the entire point. The coarse pieces carry load, the fines fill the voids between them, and when you add water and roll it, the fines cement the whole thing into a slab you can drive a loaded truck across.

South Florida sits on limestone, which means the material is quarried locally and hauled short distances — and that is why base here costs what it costs. In most of the United States, road base is crushed granite or gravel trucked in from a distance. Here, the Miami oolite formation in Miami-Dade and the Ocala limestone further north put the quarry inside the market.

You will see it written as limerock, lime rock and crushed limestone depending on who wrote the document, and heard as base rock or DOT base on site. Engineers specify it by FDOT section number. It is all the same product.

Full Limerock Base specification, coverage figures and FAQ →

Specification

What Key West customers use it for

• Base course under asphalt roads, driveways and parking lots
• Base under concrete slabs, aprons and sidewalks
• Compacted base beneath paver installations
• Structural fill and sub-base where bearing capacity is specified
• Stabilised construction entrances and haul roads
• Pads for equipment, containers and modular buildings

What is the difference between limerock and crushed limestone?

Nothing meaningful in this market. "Crushed limestone" is the generic description, "limerock" is the South Florida term, and FDOT documentation calls it limerock base. Same material.

Crushed Concrete in Key West

Recycled, cheaper than virgin rock, and it gets harder with age. The most under-rated base material in the market.

Crushed concrete is exactly what the name says: concrete from demolition, crushed and screened to a base gradation. The reflex reaction is that recycled material must be inferior to virgin rock. In this application that reflex is wrong.

Concrete never fully hydrates. There is always unreacted cement left in the matrix, and when you crush it, expose fresh surfaces, add water and compact it, that residual cement goes back to work. A crushed concrete base continues to stiffen for months after it is placed. Limerock does not do that.

It is also angular with a full range of fines, which is exactly the gradation profile that makes a good compactable base. Properly processed material performs at or very near limerock base — and costs less, because the raw input is a disposal problem somebody was paying to get rid of.

Miami-Dade in particular runs on it. The density of demolition and redevelopment in Dade means there is a lot of feedstock and a lot of processing capacity, and crushed concrete is the default base on a large share of the private work there.

Full Crushed Concrete specification, coverage figures and FAQ →

Specification

What Key West customers use it for

• Base course under asphalt, concrete and pavers where accepted
• Structural and general fill
• Driveways, parking areas and yard surfaces
• Construction entrances and haul roads
• Pipe backfill and trench restoration
• Levelling and grade correction on large sites

Is crushed concrete allowed as base on permitted jobs?

Often, but not universally. Many private and municipal specifications accept it; some require virgin limerock. Check the specification for your job before building on it.

Fill Sand in Key West

Unwashed, inexpensive, and bought by the load. The volume sand for moving grade around a site.

Fill sand is the cheapest way to move a large volume of granular material onto a site. It is natural, unwashed sand — some silt content, variable gradation depending on where it came from — and it is bought when what you need is bulk and compactability rather than cleanliness.

The most common uses in our area are backfill and grade raising. Pool contractors use a lot of it for over-dig backfill. Septic installers use it around tanks and in drainfields. Site contractors use it to bring a lot up to grade before base goes down.

Because it is unwashed, it is not the right choice anywhere fines would cause a problem — not under pavers, not in concrete, not as drainage stone. For those, buy concrete sand or #57 rock.

Full Fill Sand specification, coverage figures and FAQ →

Specification

What Key West customers use it for

• General site grading and grade raising
• Backfill around foundations, walls and structures
• Septic system installation and drainfield sand
• Pool backfill and over-dig fill
• Pipe bedding where a washed product is not specified
• Bulk volume fill beneath slabs and pads

What is the difference between fill sand and fill dirt?

Fill sand is granular, free-draining and compacts predictably — better under structures. Fill dirt is soil, cheaper, holds moisture, and is used for landscape grade changes and general volume.

Rip Rap in Key West

Armour stone for the places where water is actively trying to take your property back.

Rip rap is specified by class, and the class is driven by how much energy the water carries. Sheltered canal banks in inland Broward take smaller stone than an exposed shoreline on the ocean side of the Keys, and a scour apron at a culvert outfall is sized for the velocity coming out of the pipe.

The general rule is that stone has to be heavy enough that design-storm flow cannot move it, and graded enough that smaller pieces fill the voids between larger ones so the mat locks up rather than acting as a pile of loose boulders. Almost every properly built installation also has a filter layer underneath — geotextile fabric, a bedding stone course, or both — to stop the soil beneath from washing out through the gaps. Rip rap placed directly on sand will eventually sink into it.

We are the supplier, not the engineer. If your project is permitted, the plan set will name the class and the layer thicknesses; send us that page and we will match it. If it is unpermitted seawall repair on your own property, tell us the exposure and we will tell you honestly what size the neighbours are using.

Full Rip Rap specification, coverage figures and FAQ →

Specification

What Key West customers use it for

• Seawall toe protection and scour aprons
• Shoreline and canal bank armouring
• Slope stabilisation on retention ponds and lake banks
• Culvert and outfall headwall protection
• Living shoreline and mangrove edge stabilisation projects
• Temporary construction entrances and haul road crossings

Do I need a permit to put rip rap on my seawall?

Almost certainly, if any part of the work sits below the mean high water line. Depending on location that can involve FDEP, the South Florida Water Management District, the Army Corps of Engineers and a local marine permit. Confirm before ordering material.

#57 Rock in Key West

The workhorse drainage stone of South Florida. Open-graded, angular, and the default answer whenever water has to move through rock instead of sitting on it.

#57 is a gradation, not a rock type. The number comes from the AASHTO/ASTM sizing chart, and it describes stone that passes a 1-1/2 inch sieve and is retained on a No. 4 — in practice, pieces running roughly three-quarters of an inch to an inch, with the fines washed out.

In most of the country #57 is granite or trap rock. In South Florida it is crushed limestone, quarried locally, which is why it costs a fraction of what the same gradation costs in Georgia and why nearly every drainage detail on a Broward or Miami-Dade plan set specifies it. You will hear it called #57 stone by engineers and spec writers and 57 rock by everyone actually standing on the job. Same material.

The defining property is what has been removed. Because the fines are washed out, the stone will not knit together and will not compact. Stack it and it stays a pile of loose angular rock with roughly a third of its volume as open void. That void is the whole point: water runs straight through it instead of perching on top.

Full #57 Rock specification, coverage figures and FAQ →

Specification

What Key West customers use it for

• French drains and trench drains — the standard backfill stone
• Septic drainfields and pump chambers
• Under-slab drainage layer beneath concrete
• Pipe bedding and backfill where flow matters more than support
• Coarse aggregate in ready-mix concrete
• Loose driveways and equipment pads where mud is the enemy
• Erosion control at downspouts and swale outfalls

Is #57 stone the same as #57 rock?

Yes. "Stone" is the term on plan sets and in ASTM/AASHTO documentation; "rock" is what it is called on job sites throughout South Florida. Both refer to the same washed, open-graded gradation running roughly 3/4" to 1".

Pea Rock in Key West

Small, rounded and smooth underfoot. Called pea gravel everywhere else — in Florida it is pea rock.

Same material, different vocabulary. The rest of the country calls it pea gravel; South Florida calls it pea rock, and if you ask a yard here for pea gravel you will get a slight pause before they hand you the same thing.

It is a small, naturally rounded stone at about three-eighths of an inch nominal, washed clean, in a mix of tans, greys and off-whites. The rounded shape is what distinguishes it from #89 rock, which is a similar size but crushed and angular.

That difference drives where each one is used. Rounded feels good underfoot and looks softer, so pea rock goes on pool decks, paths and decorative areas. Angular locks under load, so #89 goes under pavers and around pipe.

Full Pea Rock specification, coverage figures and FAQ →

Specification

What Key West customers use it for

• Pool deck surrounds and landscape borders
• Walkways, paths and courtyard surfaces
• Drainage beds and dry creek features
• Playground surfacing
• Exposed aggregate concrete finishes
• Ground cover in planting beds and side yards
• Under decks and in side-yard drainage runs

Is pea rock the same as pea gravel?

Yes. "Pea gravel" is the national term and "pea rock" is what it is called in South Florida. Same 3/8-inch rounded washed stone.

Ground conditions in the Florida Keys

The Keys are geologically unlike anywhere on the mainland, and building here reflects that at every turn.

Rock, not soil

The upper Keys are built on Key Largo Limestone — fossil coral reef — and the lower Keys largely on Miami oolite. Either way, what sits under your feet is rock with a very thin and often nonexistent soil cap.

That means excavation is breaking, not digging. It means anything requiring depth costs more than the mainland equivalent. And it means that when a job calls for soil, planting medium or fill, all of it has to be imported — there is nothing local to win it from.

No aggregate production at all

There are no quarries, no pits and no processing anywhere in the island chain. Every ton of base, fill, sand and stone used between Key Largo and Key West is hauled down US-1 from the mainland. That is the single dominant economic fact of construction here, and it is why material costs more the further down the chain you go.

Elevation, flooding and why fill is regulated

The islands are very low. Much of the developed area sits only a few feet above sea level, and essentially all of it is within flood zones. Adding fill changes drainage patterns on neighbouring property and alters flood behaviour, which is precisely why Monroe County scrutinises fill placement and grade changes far more closely than any mainland county in our service area.

Do not order fill for a Keys job until the permitting is settled. It is a long way to send material that cannot legally be placed.

Salt, storms and material choice

Everything here is exposed to salt air and periodically to storm surge. Shoreline protection is not a one-time improvement but an ongoing maintenance obligation, which is why rip rap and armour stone move in the quantities they do.

Getting a truck onto your Key West site

Old Town is the hardest delivery environment in our entire service area. Streets are narrow, frequently one-way, lined with parked cars and overhung with vegetation, and many properties have no driveway at all.

On a great many Old Town jobs a tri-axle simply cannot get to the site or cannot raise a bed if it does. The realistic approach is staging the material at an accessible point and moving it in small quantities, and you should budget for that in your labour.

Tell us exactly what the street looks like — width, one-way direction, parking, overhead, and whether there is anywhere at all to put material. We would far rather plan around it than send a truck a hundred and ninety miles to find out it cannot deliver.

New Town and Stock Island are conventional and straightforward by comparison.

Give us a week where you can. This is the longest run we do and we schedule multiple loads into it wherever possible.

Before you order

Four things worth reading once if this is your first load into Key West. Each opens the full guide.

Areas we cover in Key West

Old Town, the Historic District, Bahama Village, New Town, Casa Marina, Truman Annex, Stock Island border, the North Roosevelt corridor and mile markers 0 through 4.

If your street is not on that list, we still deliver there — it is not an exhaustive index, just the areas we are asked about most.

Key West — common questions

Florida Keys County — general questions

Nearby cities we also serve

All of the Florida Keys → · Full service area →