A paver project is three separate material orders wearing one name. The pavers themselves get all the attention - the color, the pattern, the Saturday of arranging them in the driveway to see which way the texture reads. But the project's cost and its longevity are decided by the two invisible layers underneath: the compacted aggregate base and the thin bedding course the pavers rest on. Under-order the pavers and you make a second trip; under-order the base and you spend years watching the patio settle into the exact shape of the shortcut you took.
This guide does the full takeoff: area measurement, piece counts by paver size, waste by pattern, excavation depth, tons of base, yards of bedding sand, and the joint sand that locks it all together. The worked example is a 12×16-foot patio - 192 square feet - carried through every layer so the arithmetic pattern is reusable for any footprint.
Pieces = area × per-sq-ft count × (1 + waste). A 4×8 paver is 4.5 per sq ft, 6×6 is 4, 8×8 is 2.25, 12×12 is 1. Waste: 5% running bond, 10% 90° herringbone, 15% diagonal/45°, 15–20% circles and radii. Under it: 4–6 in compacted base (patio), 1 in bedding sand, 60 mm pavers. Base runs about 1.5 tons per cubic yard.
Step One: The Area
Measure rectangles as rectangles - length × width - and split anything else into rectangles that sum to the real shape. An L-shaped patio is two rectangles; a curved path is a chain of measured widths along the centerline. For curves, measure the width at several points and use the average, because the stone supply yard sells straight lines. A 10-foot circle is πr² ≈ 78.5 sq ft; a 12×16 rectangle is 192 sq ft, which is the number this guide carries.
Two measurement details that matter later. First, decide now where the patio's finished edge lands, because the edge is what the base, the excavation and the plastic restraint all need to reach - the pavers don't get to stop where the base does. Second, if the design has a border or soldier course (a row of pavers turned 90° to frame the field), count it separately: borders are cut-heavy and usually consume their own extra material, roughly 5% beyond the field's waste factor.
Piece Count Math
Pavers are bought by the piece, by the bundle and by the pallet, but sized in inches - so the arithmetic runs through square inches. One square foot is 144 square inches, and each paver covers its length × width:
| Paver size | Coverage (sq in) | Pieces per sq ft |
|---|---|---|
| 3-5/8 × 7-5/8 (Holland) | ≈ 28 | ≈ 5.2 |
| 4 × 8 (Holland) | 32 | 4.5 |
| 6 × 6 | 36 | 4 |
| 6 × 9 | 54 | 2.67 |
| 8 × 8 | 64 | 2.25 |
| 12 × 12 | 144 | 1 |
| 16 × 16 | 256 | 0.56 |
For the worked patio: 192 sq ft of 4×8 Holland pavers in running bond at a 5% waste factor is 192 × 4.5 × 1.05 ≈ 907 pieces. Pallets are the real purchasing unit - a pallet of 4×8 Holland typically covers about 120 sq ft (roughly 540 pieces) - so the honest order is two pallets, which lands 240 sq ft of material against 202 sq ft of need. The surplus isn't waste; it's the future cracked paver in year six, because concrete pavers have dye lots too, and a replacement that matches your weathered originals is unobtainable. Ordering by the pallet, lot-matched, with the leftovers stacked in the garage is the professional move.
Waste by Pattern
The pattern decides the cut count, exactly as it does for tile and plank floors. Running bond and stacked grids cut mostly at the perimeter; herringbone cuts at every border intersection at an angle; diagonal layouts and circle kits cut constantly. The percentages below are the standard planning values, and note that herringbone earns its extra cut waste by being the mechanically strongest pattern for driveways - the interlock resists creeping under turning tires in a way running bond does not.
| Pattern | Waste | Notes |
|---|---|---|
| Running bond / stacked | 5% | Perimeter cuts only; running bond stronger than stacked |
| Running bond, 45° | 10–15% | Every edge meets at an angle |
| Herringbone, 90° | 10% | Best mechanical interlock for driveways |
| Herringbone, 45° | 15% | Border pieces cut twice |
| Circle kits, radii, fans | 15–20% | Kit-based; keep the template |
The Base, By the Numbers
The excavation depth is a sum: paver thickness (2-3/8 in for 60 mm) + bedding sand (1 in) + base (4–6 in for patios, 8–12 in for driveways). A plain patio therefore digs 7-1/2 to 9-1/2 inches; a driveway in a frost state can dig fifteen. The base material is compacted angular aggregate - road base, 3/4-minus, crusher run, names vary by region - and it goes down in 2- to 4-inch lifts, each compacted with a plate compactor before the next. One pass over ten loose inches compacts nothing but the top.
The base order for the worked patio at a mid-range 5 inches of compacted base: 192 sq ft × 5/12 ft = 80 cubic feet = 2.96 cubic yards. Compacted aggregate weighs about 1.4–1.5 tons per cubic yard, so that's ≈ 4.3 tons - order 5, because the loose-to-compacted volume loss and the spoilage at the edges are real. The field shortcut: one ton of compacted aggregate covers roughly 100 sq ft at 2 inches, which is a fine sanity check for any order. Driveways and persistently wet or clay soils add geotextile fabric under the base, and driveway base in particular benefits from the fabric separating the aggregate from subgrade that would otherwise swallow it.
Bedding and Joint Sand
Between base and pavers goes exactly 1 inch of loose, sharp concrete sand - not 2 inches, not stone dust, not the fine play sand that turns to mush. The ICPI's standard is 1 inch screeded loose, the pavers settled into it by the plate compactor at the end. The quantity is pure volume: 192 sq ft at 1 inch is 16 cubic feet - about 0.6 cubic yards or 0.8 tons. One cubic yard of sand covers 324 square feet at 1 inch, the same 27-cubic-feet-per-yard arithmetic the concrete slab calculator runs.
The joints are filled with polymeric sand - sand with a polymer binder that activates with water and locks the surface against ants, weeds and washout. Coverage is a function of joint width and paver thickness, and the honest planning numbers for typical 1/8- to 3/16-inch joints are 60–100 sq ft per 45–50 lb bag: the worked patio takes 2–3 bags. Wide natural-stone joints are a different product class (the "Gator Dust" tier) covering 15–30 sq ft per bag. The bag's coverage chart is the authority for your exact paver - but buy a spare bag regardless, because a spring touch-up after the first winter is routine, and the color-matching problem is the same as pavers: product lines get discontinued.
Edges, Slopes and the Rest of the Order
Edge restraint keeps the outermost pavers from creeping outward - without it, the pattern opens at the borders within a season or two. It's sold in 8- or 10-foot strips, so the worked 12×16 patio needs 56 linear feet: 6 strips. Steel spikes pin it through the bedding into the base, roughly every foot on straight runs and every 6–8 inches on curves. The full accessory list for a paver order, in the order the yard will ask for it: pavers (by pallet), base aggregate (by ton), bedding sand (by yard or ton), polymeric sand (by bag), edge restraint (by strip), spikes (by box), and geotextile (by roll, for driveways and wet ground).
One last number before the shovel: slope. The finished surface needs 1–2% of fall away from the house - a quarter inch per foot is the field version - and the base must be graded to the same slope, because the bedding layer is only 1 inch thick and can't fix grade. Drainage is also the one requirement that disqualifies the tempting shortcut of paving over a bad slab, since a slab that holds water now will hold water forever under pavers. Measure the fall with a line level and two stakes before a single paver lands; it's the cheapest quarter-hour of the project.
Frequently Asked Questions
How many 4 by 8 pavers are in a square foot?
4.5 pieces - a 4×8 paver covers 32 square inches, and 144 divided by 32 is 4.5. Other common counts: 6×6 pavers are 4 per square foot, 8×8 are 2.25, and 12×12 are 1. Multiply the count by your area and a waste factor before ordering.
How much base do pavers need?
Patios and walkways: 4 to 6 inches of compacted angular aggregate under 1 inch of bedding sand and the 2-3/8-inch paver. Driveways: 8 to 12 inches of base, and 80mm pavers. In frost climates and over weak soils, go to the top of those ranges and add geotextile fabric under the base.
How much polymeric sand do I need for 200 square feet?
For typical narrow paver joints of 1/8 to 3/16 inch, expect roughly 60-100 square feet of coverage per 45-50 lb bag - so 200 square feet takes 2 to 3 bags. Wide stone joints are a different product class and cover only 15-30 square feet per bag. Check the manufacturer's coverage chart for your joint width and paver thickness.
Can I lay pavers over an existing concrete slab?
Yes, if the slab is structurally sound and already drains away from the house - lay a thin bedding layer or use adhesive with thin pavers. Two honest caveats: cracks in the slab telegraph through the pavers eventually, and a slab with standing-water spots will still hold water under the new surface. Broken or poorly drained slabs should be removed, not buried.
How thick should pavers be?
60mm (2-3/8 inches) is the standard residential paver for patios and walkways; driveways want 80mm (3-1/8 inches). Thin 1-inch pavers are for overlay-on-slab applications only and can't take vehicle traffic. Thicker pavers also read more substantial at borders and steps.
Planning guidance for residential paver installs. Site conditions rule the base design - clay, high water tables and frost heave change depths, and driveways plus slopes over 8% may need a professional segmental pavement design.
Where to Read Next
- The concrete slab calculator — the same area × depth arithmetic, for checking the aggregate and sand volumes in cubic yards before you call the yard.
- How much concrete do I need? — the poured-slab alternative to pavers, and the bag-versus-truck decision math.
- Tile layout patterns compared — the indoor cousin of pattern waste: grid, running bond and herringbone, with the cut counts each one adds.
- The deck lumber takeoff guide — the other backyard surface, ordered by board count the same way this guide orders by pallet.
- The Garden & Outdoor category — every outdoor project guide and calculator in one place.
The bottom line: order the pavers by piece count and pattern waste, the base by the ton (a yard and a half per inch of depth per 300 sq ft), the bedding sand at exactly one inch, and the joint sand by the bag with a spare. The pattern gets the compliments; the base depth decides whether it still deserves them in five years.