Paver base calculator for Mississippi

The compacted stone layer below the surface helps keep a patio level over time, and this calculator measures it by the ton.

Enter your project dimensions

Length (feet)

Enter a length greater than 0

Width (feet)

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Diameter (feet)

Enter a diameter greater than 0

Depth (inches)

Enter a depth between 0.25 and 24 inches

Material

Add 10% extra for compaction & spillage

The stone layer is a small part of the cost compared with the pavers, but it carries the whole installation. When a patio develops trouble, the cause is often underneath the surface. Use this calculator to estimate compacted crusher run or a comparable material at 1.5 tons per cubic yard: allow 4 inches for walking areas and 6-8 beneath vehicles. The +10% compaction allowance is already included. Use the separate calculator for the strict 1-inch bedding-sand course.

Planning the base

After measuring the paved space in feet, extend the base 6 inches beyond each open paver edge. That extra base supports the edge restraint.
Use 4 inches of compacted base for patios and walkways, 6 for driveways or clay soil, and 8 for driveways over soft ground.
Divide cubic feet by 27 for yards; multiply by 1.5 for tons; keep the +10% allowance selected.

Tons = (Base area sq ft × Compacted depth in ÷ 12) ÷ 27 × 1.5 × 1.10
Excavation depth = base + 1" bedding + paver thickness − reveal

Project base depth and coverage

Project	Compacted base depth	1 ton covers
Walkway or garden path	4 inches	≈ 54 sq ft
Patio or seating area	4-6 inches	≈ 43 sq ft
Driveway with cars	6-8 inches	≈ 31 sq ft
Clay or soft subgrade	add 2 inches + fabric	n/a

Excavation layers from lawn to finished paver

Figure the excavation by adding all layer thicknesses. For example, a patio with 4 inches of base, 1 inch of bedding sand, and a 2 3/8 inch paver level with the lawn calls for a 7.5-inch excavation, adjusted for the reveal above grade. Put that mark on a stake and check it as you work. Going too deep means hauling out more soil, which the Dirt Calculator can estimate in reverse, then bringing in extra stone to make up the depth.

Installation practices for a lasting base

Build the base in 2-inch lifts, compacting each one with a plate compactor and giving it a light mist. Material that is damp packs more tightly than dry stone.
Shape the compacted base with a 2-3% slope carrying water away from the house. Any grade in that base will show through the sand and pavers.
Put edge restraint on the compacted base, not on grass soil. The 6-inch extension leaves the needed space.
For clay ground, install woven geotextile beneath the base. It helps keep the stone from sinking into the subgrade through repeated wet seasons.
A deeper sand layer is not a substitute for proper base depth. Sand can shift, leaving a patio surface uneven.

Reusing old pavers: checking the base

When re-laying a patio, the existing base may still be usable. Remove the pavers, rake away old bedding sand, then check the base. If it remains flat, firm, and drains well, install a fresh 1-inch bedding layer; the stone order drops to a tenth of what a new installation needs. If there are low areas, soft spots, or standing water, replace the base as well. Leaving those problems in place brings back the same failure beneath the replacement pavers.

Example calculation: 16 x 12 patio

The paved surface is 192 square feet. Extending 6-inch beyond three exposed edges makes the base area 210. Using 4 inches after compaction: 210 x 0.333 = 70 cubic feet = 2.6 cubic yards, roughly 3.9 tons or 4.3 after the allowance. Buy 4.5 tons of crusher run and 0.9 tons of bedding sand using the Paver Sand Calculator, in one free delivery. Schedule delivery once excavation is done, because a pile of stone sitting on grass for two weeks can leave a dead rectangular area.

Questions about base depth, excavation and tonnage

How can I calculate the paver base needed?

Include a 6-inch perimeter around the paved area. Multiply that area by the compacted depth expressed in feet, then divide by 27; multiply the result by 1.5 tons and add 10%. At 4 inches, a 10 x 10 patio needs about 2.2 tons, so order 2.5.

Will 2 inches of paver base do the job?

No. Two inches works as a leveling layer, not a base. Four compacted inches is the minimum for pedestrian use, and cutting that depth short commonly leads to low spots and loose pavers.

What compacted depth does paver base need?

For patios and walkways, use four compacted inches. Areas that carry cars need 6-8, and clay or wet ground calls for 2 extra inches. That added base depth helps keep the finished surface from needing to be rebuilt.

How far down should pavers be excavated?

Excavation depth equals the base, plus 1 inch of bedding, plus paver thickness, less any portion left above grade. Standard 2 3/8 inch pavers over a 4-inch base need roughly 7.5 inches below finished elevation.

For a paver base, crusher run or screenings?

Use crusher run, also called road base, as the load-bearing course for the full 4-plus inches. Spread screenings only as a thin leveling layer over a compacted base. Screenings used alone can retain water and move under weight.

Can pavers be installed without base material?

Yes, when covering a sound concrete slab with a bedding layer and drainage gaps. No, when the surface is soil. Pavers installed directly over dirt move with shallow frost and heavy rain, and unevenness can appear within one season.

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Pavers finish the surface. The base supports it.

Order crusher run and screenings by the ton alongside bedding sand, with free delivery.

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