🟧 Pavers Calculator PRO
Pavers, sand, gravel, edge restraints & cost — complete patio estimate.
Paver Field + Base — updates as you type
Paver grid over compacted base. Count follows the field area plus cuts and breakage.
1 Area Dimensions
2 Paver Size & Pattern
3 Base Layers & Edge Restraints
4 Project Details
Client Details
Results
Pavers
Base Materials
Paver Installation Guide
Show formulas, patterns & pro tips ▼
Formulas
Pavers= Area ÷ Paver Area × (1 + Pattern Waste%)
Sand= Area × Depth × 0.05 (tons per inch-sqft)
Gravel= Area × Depth × 0.08 (tons per inch-sqft)
Edge Restraints= Perimeter of area = 2 × (Length + Width)
Pattern Waste Guide
- Herringbone (10%): Classic interlocking V-pattern — most durable, highest cut waste
- Running Bond (5%): Offset rows like brick — simple, minimal waste
- Stacked Bond (5%): Grid pattern — easiest install, very low waste
Paver Size Reference
- 4×8 in: Standard brick size — classic look, versatile
- 6×6 in: Square — modern geometric pattern
- 6×9 in: Roman-style — elegant proportions
- 8×8 in: Large square — fewer pieces, faster install
- 12×12 in: Flagstone style — minimal joints, premium look
Base Depth Guidelines
- Walkways: 4" gravel + 1" sand — pedestrian traffic only
- Patios: 4-6" gravel + 1" sand — standard residential
- Driveways: 8-12" gravel + 1" sand — vehicle loads, compact in layers
Common Mistakes
- Skipping edge restraints — pavers will shift and spread over time
- Insufficient gravel base — causes settling, pooling, and uneven surfaces
- Not compacting base — each gravel layer should be compacted separately
- Using playground sand — masonry sand is finer and creates a smoother bedding layer
Pavers — 3D Preview
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Related Calculators
Frequently used together on the same project.
Client & Quote (prints on PDF & Excel)
Adjustments (applies to exports)
Contingency is added as a separate line on the exported cost summary. Waste % is printed as an advisory reminder.
Project notes (prints on PDF & Excel)
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Saved rates auto-apply from your Price Library. Advanced details stay in your browser — nothing is uploaded except inside your own PDF/Excel exports.
A paver patio, walkway, or driveway is one of the most durable and attractive hardscape improvements you can make, but getting the material quantities right requires more than multiplying length times width. Our paver calculator accounts for the pavers themselves, the bedding sand layer, the compacted gravel base, edge restraints, and polymeric sand for joint filling. Enter your project dimensions, select the paver size and pattern, and get back exact quantities for every material in the installation stack.
Pavers come in standard sizes that affect coverage and pattern options. The most common concrete paver is 4 x 8 inches (nominal), which covers 0.222 square feet per piece. A 6 x 9-inch paver covers 0.375 square feet per piece. A 12 x 12-inch paver covers 1 square foot per piece. Brick pavers are typically 4 x 8 inches (standard brick) or 3.75 x 7.5 inches (modular brick). The calculator converts your project area into exact paver counts based on the selected size, accounting for the typical 1/8 to 1/4-inch joint spacing between pavers.
The installation layers beneath the pavers are just as important as the pavers themselves. A standard paver installation consists of: 6 to 8 inches of compacted crushed stone base (for driveways) or 4 to 6 inches (for patios), 1 inch of bedding sand, the paver layer, and polymeric sand in the joints. For a 200-square-foot patio with a 6-inch base, you need approximately 3.7 cubic yards of crushed stone (at 1.5 tons per cubic yard, that is 5.6 tons), 0.6 cubic yards of bedding sand (about 1 ton), and approximately 10 bags of polymeric sand. Edge restraints are required around the entire perimeter to prevent pavers from shifting.
Pattern choice affects waste and cutting. A running bond (stretcher bond) pattern uses rectangular pavers in offset rows and produces approximately 5 percent waste. A herringbone pattern uses 45-degree or 90-degree interlocking angles and produces 10 to 15 percent waste due to the angled cuts at edges. A basketweave pattern alternates pairs of pavers and produces approximately 5 percent waste. The calculator adjusts waste percentage based on your selected pattern.
📖 How to Use the Paver Calculator
Measure Project Area
Measure the length and width of the area to be paved in feet. For irregular shapes, break the area into rectangular sections, calculate each section separately, and add the totals. For curves, measure the longest and shortest dimensions and average them.
Select Paver Size
Choose the paver size: 4x8 inches (standard brick), 6x9 inches, 8x8 inches, or 12x12 inches. Larger pavers cover more area per piece but are heavier and harder to cut for curves and edges.
Choose Pattern
Select running bond, herringbone (45 or 90 degrees), basketweave, or stack bond. The pattern affects waste percentage and cutting requirements. Herringbone is strongest for driveways; running bond is simplest for walkways.
Set Base Depth
Enter the base depth: 4 inches for patios and walkways, 6 inches for driveways, 8 inches for heavy-traffic areas. The base is compacted crushed stone (also called road base or class 5).
Enter Sand Depth
The standard bedding sand depth is 1 inch. This layer is screeded level over the compacted base and provides a smooth surface for paver placement.
Review Materials List
The calculator outputs pavers, base material (cubic yards and tons), bedding sand (cubic yards and tons), polymeric sand (bags), and edge restraints (linear feet). Add 5 to 15 percent extra for waste based on pattern.
📐 Paver Formulas & Material Quantities
Paver calculations involve area, volume, and weight conversions. Here are the key formulas:
Paver Count: Divide the project area by the coverage per paver. Pavers = Project Area / Coverage Per Paver. For a 200-square-foot patio with 4x8-inch pavers (0.222 square feet each): 200 / 0.222 = 901 pavers. Add waste factor: 901 x 1.10 = 991 pavers for running bond (10% waste), or 901 x 1.15 = 1,036 for herringbone (15% waste).
Base Material Volume: Calculate the compacted base volume in cubic feet, then convert to cubic yards. Volume = Area x Base Depth / 12. For 200 square feet with a 6-inch base: 200 x 6 / 12 = 100 cubic feet. Convert to cubic yards: 100 / 27 = 3.7 cubic yards. At 1.5 tons per cubic yard (compacted): 3.7 x 1.5 = 5.6 tons of crushed stone.
Bedding Sand Volume: Same formula as base material. Volume = Area x Sand Depth / 12. For 200 square feet with 1-inch sand: 200 x 1 / 12 = 16.67 cubic feet = 0.62 cubic yards. At 1.4 tons per cubic yard (dry sand): 0.62 x 1.4 = 0.87 tons, or approximately 1 ton of bedding sand.
Polymeric Sand: One bag of polymeric sand covers approximately 25 to 50 square feet depending on paver size and joint width. For 4x8-inch pavers with 1/8-inch joints: approximately 25 square feet per bag. For 200 square feet: 200 / 25 = 8 bags. Always round up and order 10 percent extra.
Edge Restraints: Edge restraints are installed around the entire perimeter of the paved area. Perimeter = 2 x (Length + Width). For a 10x20-foot patio: 2 x (10 + 20) = 60 linear feet of edge restraint. Each piece is typically 8 feet long, so 60 / 8 = 7.5, rounding to 8 pieces. Spikes are included with edge restraints or sold separately (one spike per 12 inches).
⚠️ Common Paver Calculation Mistakes
Not accounting for waste in herringbone pattern
✓ Herringbone patterns produce 10 to 15 percent waste due to angled cuts at edges and boundaries. Running bond produces only 5 percent waste. Using the wrong waste factor leaves you short on pavers for the last rows.
Ignoring base material depth
✓ Patios need at least 4 inches of compacted base; driveways need 6 to 8 inches. Skipping or reducing the base depth leads to settling, heaving, and uneven pavers within one to two freeze-thaw cycles.
Forgetting edge restraints
✓ Edge restraints prevent pavers from spreading outward under traffic loads. Without edge restraints, pavers will shift and separate within months. Always install edge restraints around the entire perimeter.
Using wrong sand type
✓ Use polymeric sand (sand with a polymer binder) for joint filling, not regular play sand. Regular sand washes out of joints during rain and allows weed growth. Polymeric sand hardens when wet and resists weed growth and insect intrusion.
Not compacting base properly
✓ The crushed stone base must be compacted in 2-inch lifts using a plate compactor. Compacting the entire depth at once produces uneven density and settling. Each lift should be compacted to 95 percent Proctor density.
Ignoring drainage slope
✓ The paver surface should slope away from structures at 1/4 inch per foot (2 percent minimum). For a 10-foot-wide patio, that is a 2.5-inch slope from the house to the outer edge. Plan for this slope when setting base grades.
Ordering pavers by square feet instead of pieces
✓ Pavers are sold by the piece, not by square feet. A 200-square-foot patio with 4x8-inch pavers needs approximately 1,000 pieces (with waste). Ordering 200 square feet of pavers without converting to piece count leads to under-ordering.
💡 Pro Tips for Paver Installation
Excavate the area to a depth equal to the base depth plus bedding sand plus paver thickness plus 1 inch. For a 6-inch base, 1-inch sand, and 2.5-inch pavers: excavate 10.5 inches deep. This ensures the finished paver surface is at grade level.
Compact the subgrade (native soil) before adding base material. Use a plate compactor on the excavated soil to create a firm, level foundation. Fill any soft spots with additional crushed stone and compact again.
Install edge restraints before laying pavers. Drive 10-inch spikes through the edge restraint into the compacted base every 12 inches. Edge restraints must be installed before the pavers to ensure a tight fit against the paver edges.
Screed the bedding sand level using two parallel pipes (screed rails) set at the sand depth. Pull a straight board across the pipes to create a smooth, level sand surface. Do not walk on the screeded sand - it will create footprints and uneven areas.
Start paver installation from a straight edge (house wall, edge restraint, or string line) and work outward. Lay the first row of pavers along the straight edge, then work diagonally in the pattern direction. Use a string line to keep rows straight.
Cut pavers with a masonry saw or a paver splitter. For straight cuts, use a paver splitter (manual or hydraulic). For curved cuts or notches around obstacles, use a masonry saw with a diamond blade. Always wear safety glasses and hearing protection.
Fill joints with polymeric sand after all pavers are laid and before final compaction. Sweep sand into joints with a push broom, then mist with water to activate the polymer binder. Compact the pavers with a plate compactor after wetting to seat the pavers into the bedding sand.
❓ Paver Calculator - Frequently Asked Questions
For a 200-square-foot patio with 4x8-inch pavers (0.222 square feet each), you need approximately 901 pavers. Add 10 percent waste for running bond (991 total) or 15 percent for herringbone (1,036 total). Order whole pavers only - they are sold by the piece.
For a 200-square-foot patio with a 6-inch compacted base, you need approximately 3.7 cubic yards (5.6 tons) of crushed stone. For a driveway, increase to 8 inches: 4.9 cubic yards (7.4 tons). Compaction reduces loose volume by 20 to 30 percent, so order loose volume and compact on site.
Yes, if the concrete is in good condition (no major cracks or settling). Apply 1 inch of bedding sand over the concrete and lay pavers on top. The concrete provides the base layer. However, the finished height increases by the paver thickness (approximately 2.5 inches), which may affect door thresholds and step heights.
Polymeric sand is jointing sand with a polymer binder that hardens when wet. It prevents weed growth, resists washout, and deters insect intrusion. It is recommended for all paver installations and required by most paver manufacturers for warranty compliance. Regular play sand washes out within one to two years.
A properly installed paver patio with a compacted base, bedding sand, and polymeric sand joints lasts 25 to 50 years for concrete pavers and 100+ years for natural stone. The key factors are proper base preparation, edge restraints, and joint sand maintenance. Individual pavers can be replaced if damaged without disturbing the surrounding area.
Most jurisdictions do not require a permit for paver patios under 200 square feet and less than 30 inches above grade. However, check with your local building department - some jurisdictions require permits for any hardscape project, and some have setback requirements from property lines.
🏗️ Real-World Paver Projects & Applications
Backyard Patio (200 square feet): A 10x20-foot patio with 4x8-inch concrete pavers in a running bond pattern requires approximately 991 pavers (including 10% waste). Base material: 6-inch compacted crushed stone = 3.7 cubic yards (5.6 tons) at $30 to $50 per ton = $168 to $280. Bedding sand: 0.62 cubic yards (0.87 tons) at $25 to $40 per ton = $22 to $35. Polymeric sand: 8 bags at $25 each = $200. Edge restraints: 60 linear feet at $1.50 per foot = $90. Pavers: 991 at $1.50 each = $1,487. Total materials: approximately $1,967 to $2,092. Professional installation adds $8 to $15 per square foot ($1,600 to $3,000), bringing total project cost to $3,567 to $5,092.
Walkway (50 square feet): A 4x12.5-foot walkway with 6x9-inch pavers in a herringbone pattern requires approximately 150 pavers (including 15% waste). Base material: 4-inch compacted base = 0.62 cubic yards (0.93 tons) = $28 to $47. Bedding sand: 0.15 cubic yards = $6 to $10. Polymeric sand: 2 bags = $50. Edge restraints: 33 linear feet = $50. Pavers: 150 at $2.25 each = $338. Total materials: approximately $472 to $495. Professional installation at $12 to $18 per square foot adds $600 to $900, totaling $1,072 to $1,395.
Driveway (400 square feet): A 20x20-foot driveway with 6x9-inch pavers in a herringbone pattern requires approximately 1,200 pavers (including 15% waste). Base material: 8-inch compacted base = 9.9 cubic yards (14.8 tons) at $35 per ton = $518. Bedding sand: 1.2 cubic yards = $42. Polymeric sand: 16 bags = $400. Edge restraints: 80 linear feet = $120. Pavers: 1,200 at $2.75 each = $3,300. Total materials: approximately $4,380. Professional installation at $15 to $25 per square foot adds $6,000 to $10,000, totaling $10,380 to $14,380. Driveways require the deepest base (8 inches) and the heaviest pavers (6x9 or thicker) to withstand vehicle loads.
Our paver calculator provides accurate material estimates for patios, walkways, and driveways of any size. Enter your project dimensions, paver size, and pattern to receive exact paver counts, base material volumes, sand quantities, edge restraints, and polymeric sand bags. The calculator accounts for waste based on pattern type and provides complete material lists for DIY or contractor use. Pair it with our concrete calculator for poured concrete borders and our fence calculator for complete outdoor living estimates.
✅Method, Sources & Review
Maintained by theBuildingCalc methods desk· Last reviewedSeptember 23, 2026. This calculator implements the standards and references below; every figure can be rechecked against the formulas and worked example on this page.
Results are estimates, not engineering advice. Verify against local codes and licensed professionals for structural, electrical, and gas work. See ourTerms. Spotted an error? Report it— corrections ship with the next review.