Last Updated on October 20, 2026 by Umar Farooq
Pavers around a tree work best when you do not pave right up to the tree. Leave a clear, unpaved ring at the trunk, keep digging to a minimum, and use permeable materials beyond it so water and air still reach the roots. Unilock advises 3 to 6 feet between an existing tree and the pavers. Hunker's rule is about 1 foot of horizontal space per 10 feet of tree height, so a 30-foot tree needs a 3-to-4-foot ring. The tree is the one part of the project that cannot be replaced in a weekend.
Below: how much room to give, why shallow roots are the real risk, three ways to build around them, and what to do when roots have already lifted a patio.
How much space the tree needs
There is no single legal number, which is why the sources disagree a little. Use the tree's size when fully grown, not the sapling you planted.
| Source | Distance | Notes |
|---|---|---|
| Hunker | 1 ft per 10 ft of tree height | 30 ft tree: 3 to 4 ft; 50 ft tree: about 5 ft |
| Unilock | 3 to 6 ft from an existing tree | For new trees, at least twice the mature trunk diameter from any paver edge |
| Arborist guidance | Outside the critical root zone | Roughly the trunk to the drip line |
For the wider planting plan around a finished patio, see landscaping around a paver patio. If your patio plan puts pavers closer than that, the answer is usually to move the patio, not to cut roots. A small ornamental tree forgives a tighter ring than a mature oak.
Why the damage starts at the surface
Most of a tree's feeder roots are shallow. An arborist guide from Urban Forest Professionals says the critical roots sit in the top 2 to 3 inches of soil. That is exactly where a paver base is excavated, so digging 8 to 12 inches for a normal patio base shears the roots that feed the tree. The details are in our piece on tree sap on pavers.
Two other things hurt, and neither needs a shovel:
- Compaction. The plate compactor that makes a paver base solid also squeezes the air out of the soil the roots live in.
- Sealing the surface. A tight paver surface over compacted base cuts down the rain and air that reach the roots. Roots near the surface can lift pavers over time, and a permeable base is the usual way to give them a reason to grow deeper (see the permeable option below).
A tree under stress shows slow spring growth, yellowing leaves and early leaf drop. The pavers show up as a ridge a few years later.
Three ways to put pavers around a tree
Start with the cheapest and least invasive option. It is also usually the best.
A simple ring bed
Leave bare soil and mulch at the trunk and put a paver ring (or a row of edging pavers) around it. This is the Hunker approach: a shallow trench a few inches wider than the paver, a couple of inches of paver base tamped by hand, and pavers set with a rubber mallet. A hand tamper, not a plate compactor, is the right tool. Keep mulch away from touching the bark itself.
For curved edging that follows the ring, our bullet stone edging guide covers bending an edge around trees.
A permeable paver zone beyond the ring
Where you want a patio near the tree, choose a permeable paver system so rainfall reaches the soil. Unilock notes that a permeable base can slow root growth into the pavers and encourage roots to grow downward toward water. Urban Forest Professionals also recommends permeable pavers, along with drainage that moves water away from the root zone in wet weather.
A permeable build uses open-graded stone, which is lighter on the soil than a dense base. See permeable concrete pavers for the construction.
A no-dig surface on top of the soil
Within the critical root zone, the gentlest option is not to dig at all. Pavers or stepping stones set on a thin bed over the existing grade, with no excavation and no compaction, protect roots best. Use a plate compactor nowhere near the trunk. Arborists also use air excavation to expose roots without cutting them, which is a job for a pro, not a weekend.
How to build a paver ring around a tree
- Mark the ring. Lay a hose around the trunk at the distance from the table above. Measure from the mature size of the tree.
- Clear surface growth only. Rake off old mulch and weeds. Do not dig out soil.
- Open a shallow trench wide enough for your edging pavers and deep enough to bury about half of the unit, over a few inches of gravel. If you hit a root thicker than a pencil, move the trench. Never cut it.
- Add 1 to 2 inches of paver base and tamp it by hand until firm.
- Set the pavers and tap them down with a rubber mallet. Check level every few pavers.
- Backfill both sides with base or soil so the ring cannot rock.
- Mulch inside the ring with shredded bark, keeping it clear of the trunk.
Cut pavers for the curve rather than leaving wide wedge-shaped joints.
Choose the tree and the timing carefully
The roots that lift pavers belong to a few species. Unilock names silver maple and poplar as aggressive rooters to avoid planting beside pavement. Space trees far enough apart that they do not compete for moisture, because competing trees send roots farther.
If you are removing a tree, take out all the roots before laying the base. Decaying roots leave voids, and the ground sinks under the pavers. For a new tree near an existing patio, plant it at least twice its expected mature diameter away from the nearest paver edge.
Fixing pavers that tree roots have lifted
Interlocking pavers are one of the more forgiving surfaces here, since they can be lifted and reset. Unilock's repair method is simple:
- Lift the affected pavers.
- Remove or trim the roots that caused the lift, small ones only.
- Level the base and re-compact it.
- Reset the pavers and refill the joints.
How to fix sunken pavers covers the base repair. If the roots under the patio are large, stop. Cutting a major root can destabilise or kill the tree, so call an arborist before touching anything thicker than your thumb. Sometimes the right fix is to pull back part of the paving and widen the ring.
Give the tree the first claim, then pave around it
Pavers and trees can share a yard, as long as the tree gets a clear ring sized to its mature height, shallow soil is left alone, and the paving beyond the ring is permeable. Build the ring by hand, use no plate compactor near the trunk, and if the roots win, reset the pavers rather than cutting the tree. A tree that took forty years to grow will not wait while you finish the weekend.
FAQ
How close can pavers be to a tree?
Unilock advises 3 to 6 feet from an existing tree. Hunker suggests about 1 foot per 10 feet of mature tree height, so 3 to 4 feet for a 30-foot tree. Larger and older trees need more room. Check the species and have an arborist look if you are inside those distances.
Can you lay pavers over tree roots?
Avoid it. Most critical roots lie in the top 2 to 3 inches of soil, so excavating for a base cuts them and compacting it squeezes the rest. If you must pave inside the root zone, use a no-dig, permeable method and ask an arborist first.
Do tree roots lift pavers?
They can. Roots near the surface lift pavers over time, and a permeable base that lets water reach the soil is the approach Unilock suggests to encourage deeper growth. Interlocking pavers tolerate this better than poured concrete, since you can lift them, remove the roots and relay the stones.
Are permeable pavers better around trees?
Yes. They let rain and air reach the roots, which reduces stress on the tree and discourages roots from hunting for water near the surface. Unilock says a permeable base can also slow root penetration.
Should I cut a tree root that is lifting my pavers?
Only small roots, with clean sharp tools, and only after checking with an arborist. Cutting a large root can destabilise the tree or cause its decline. If a major root is the problem, redesign the patio around it.
