Build a Paver Walkway: Project Walkthrough

1. Choose the paver before digging anything

Pick the paver's thickness now, even before the exact style or color is finalized — a standard concrete paver commonly runs about 2.375 inches thick, while some clay or thicker patio-style pavers run closer to 2.5 to 3 inches. That number is one of three that add up to total excavation depth, and digging before it's chosen means digging to a guess.

Confirm at the same time whether the walkway needs to handle anything beyond foot traffic — a side path that occasionally sees a wheelbarrow or a garden cart is still fine on a standard base, but a walkway doubling as a driveway apron or crossing a spot where a vehicle might park needs a thicker paver and a deeper compacted base than a pure foot-traffic path, and that decision belongs here too, before the base depth in step 3 is settled.

2. Excavate to the full depth, not just the paver's own thickness

Run the excavation spoil calculator using the walkway's length and width and the total depth from the worked example below, checking soil swell and compaction against your actual soil type before assuming a generic swell figure applies. A walkway's excavation is long and narrow rather than a single block, which makes it easy to underestimate the total spoil volume simply because no single measurement along the run looks like much on its own.

3. Base course, compacted in lifts

Run the gravel calculator for the compacted base — commonly 4 to 6 inches for a walkway carrying foot traffic only, more if it needs to occasionally take a wheelbarrow or light vehicle load. Spread and compact it in two thinner passes rather than dumping the full depth loose and running the plate compactor once; a single pass over a deep loose layer leaves the lower half noticeably softer than the top, since a compactor's energy doesn't reach much past a few inches down into loose material.

4. Bedding sand, screeded flat and never compacted directly

Run the sand calculator for a bedding layer typically around an inch, screeded level with a screed board run along temporary guide rails rather than compacted with a plate compactor before the pavers go down — compacting bare bedding sand creates an uneven surface the pavers then telegraph, where screeding and letting the pavers themselves compact the sand as they're set and vibrated in gives a flatter, more consistent result.

5. Set pavers and account for curves before ordering, not after

Run the paver calculator for the field quantity, and treat the waste factor calculator as required rather than optional on any walkway with a curve — see paver patterns and waste for how sharply a curved edge's waste rate departs from a straight run's, since every paver that meets a curved edge gets an individual cut, and curved cuts almost never leave a reusable offcut the way a straight diagonal cut sometimes does.

Why the paver you pick before digging sets a depth you can't add back later

A common thin concrete paver at 2.375 inches, on a 4-inch compacted base and a 1-inch bedding sand layer, needs 7.375 inches of total excavation — call it a clean 7.5 inches in practice. Switch to a thicker patio-style paver at 3 inches for a more substantial look, keeping the same 4-inch base and 1-inch bedding sand, and the total climbs to 8 inches. That extra 0.625 inches doesn't sound like much on paper, but it's the entire difference between a walkway that finishes flush with the surrounding lawn and one that either sits noticeably proud of it or needs a deeper dig discovered only once the thinner paver's excavation is already finished and the thicker paver is on order.

The reverse mistake is just as common: excavating to a round number like 6 inches before the paver is chosen, then finding the actual base-plus-sand-plus-paver sum for the chosen product needs 7.5 or 8 inches — at that point the whole trench has to be deepened after it's already been dug and, often, after base stone has already been delivered and partially spread.

What goes wrong when the curve gets treated like the straight sections

Order paver quantity off a single flat waste percentage meant for a straight run, and a walkway with even a gentle curve comes up short exactly where it matters most — along the curve itself, where nearly every paver needs its own individual cut rather than a reusable straight offcut. A shortfall discovered mid-curve, with straight sections already laid on either side of it, often means a second, smaller order from the same batch and dye lot, which isn't always available weeks after the first delivery.

Excavation width has its own version of the same trap on a curve: a curved path's outer edge sweeps wider than a straight-line measurement between its endpoints would suggest, and an excavation planned off the endpoint-to-endpoint width comes up narrow along the outside of every curve.