The short answer for a 4 foot side yard
For a narrow walking path, decomposed granite is the better default, laid 2 to 3 inches deep. Expect bulk decomposed granite to run somewhere around 40 to 50 dollars per cubic yard before delivery, with pea gravel a bit cheaper at roughly 30 to 35 dollars per cubic yard, so on a side yard strip the material is rarely the expensive part of the project. Pebbles win in one specific situation. If the side yard stays wet, catches runoff from two rooflines, or sits lower than the rest of the lot, the open space between round stones moves water through faster than any compacted surface will.
Side yards are their own kind of project. They are narrow, usually shaded for most of the day, and they double as the route for trash cans, hoses, and the mower. Nobody enjoys spending money on them, and nobody wants to spend it twice. That is why the failure cases matter more than the looks here.
The two failure cases are worth knowing before you order anything. Decomposed granite washes out on a slope or in a hard rain if it has nothing containing it, and the fines run downhill while the chips stay behind. Pebbles roll underfoot and migrate. Once a round stone leaves the path it does not come back, and over a few seasons you find them in the beds, in the lawn, and eventually under the mower blade.
How each one actually feels underfoot
Decomposed granite is weathered granite screened to a fines-and-chip blend. In California and the Southwest almost everyone just calls it DG. The fines are the working part. When you wet and compact them they lock together around the larger chips, and you end up walking on a firm natural-looking surface instead of loose material shifting under every step. It reads as a path from ten feet away, which is part of why it looks right in a utilitarian strip.
Stabilized DG is the same material mixed with a binder. It holds up to wheelbarrow traffic and rain noticeably better than loose DG. If the side yard is the route you push a mower, a garbage bin, or a loaded wheelbarrow down, the upgrade is worth considering for at least the section that takes the wheels.
Pebbles never do any of that. Round stones stay loose permanently because there is nothing between them to bind, and they roll against each other with every step. That is exactly why pea gravel feels pleasant barefoot around a patio and exactly why it feels awful under a loaded wheelbarrow wheel, which sinks and then plows a rut.
Rolling matters more in a narrow space than an open one. On a four foot path there is nowhere to step off if your foot slides, and the strip is often bordered by a fence on one side and the house foundation on the other. Add shade. Side yards stay damp longer than the rest of the yard, and a compacted DG surface gives you more grip when wet than a bed of round stones does.
The honest tradeoff with DG is that some of the surface leaves on shoes. It is the price of a material fine enough to compact, and the FAQ below covers how to live with it.
Weeds, drainage, and what happens after two years
Weed behavior
In both materials the weeds arrive from above. Seed blows in, lands in the surface, and germinates in whatever it can find. The difference is what happens when you go to pull them.
Weeds in DG root shallow into the surface fines. They come out whole with a light tug, and a path that stays properly compacted gives them less loose material to root into in the first place. Weeds in pebbles root down into the gaps between the stones where your fingers cannot follow. Pulling usually just snaps the top off and leaves the root to send up another one in two weeks.
Landscape fabric under either material is the question that comes up most. The short version is that it does very little for weeds over the long run, and the FAQ explains the one situation where it genuinely earns its place.
Drainage in a wet side yard
Pebbles keep open space between the stones, so rainwater drops straight through instead of running across the surface. If your side yard puddles, that single property is the strongest argument for pebbles and it outweighs everything else on this page.
Compacted DG does the opposite. It sheds more water than it takes in, which is the point on a path, and a problem if the strip has nowhere to send that water. Pitch the path slightly toward the yard side, never toward the foundation. Even a small cross slope is enough to keep water moving away from the wall.
Two years out, the two materials fail in different directions. Pea gravel and small pebbles grind against each other and slowly break down into sand, which migrates down to soil level and can pack into a layer that slows drainage rather than helping it. When that happens the fix is usually removal and replacement, not a top-up. DG erodes instead. Heavy rain and any real slope carry the fines off and leave the coarser chips sitting on the surface. On a sloped side yard, use stabilized DG or break the run into steps so water never picks up speed.
Edging is not optional for pebbles
Pebbles need edging on both sides of the run. That is not a style preference. Without a hard edge they migrate into beds, onto the lawn, and into the mower, and you will be raking them back for as long as you own the house.
Edging height matters more than edging material. The top of the edge needs to sit at or just above the finished stone surface. An edge buried an inch below the stone holds nothing back.
DG is more forgiving. In a flat contained strip where the path already runs between a fence line and a foundation wall, you can get away without dedicated edging. Edging still earns its keep by holding your depth where you want it and keeping the line crisp, but it is a choice rather than a requirement.
For a side yard the usual options are steel or aluminum edging for a clean straight line, pressure treated timber for a more rustic look, or letting an existing fence board and the foundation wall do part of the job for free. Whatever you pick, price it before you compare material costs. A long narrow path needs roughly twice the linear footage of edging that a square patio of the same area would, because you are running two long sides instead of four short ones. People forget that line item constantly.
One more detail. Where the path meets a door or a gate, plan a transition. A paver landing or a couple of flagstones at the threshold cuts tracking with either material and gives you a clean place to stand while you open the gate with both hands full.
Running the numbers for a 4 foot wide path
How much decomposed granite you need
Typical install depth is 2 to 3 inches. Two inches is fine for a light traffic walking path over firm subgrade. Go to three inches if the strip is soft underneath, if it takes wheelbarrow traffic, or if you are using stabilized DG.
The volume math is the same for any bulk material. Multiply width by length to get square feet, multiply that by your depth in feet, then divide by 27 to get cubic yards. A 4 foot wide path running 40 feet is 160 square feet. At 2 inches, which is 0.167 feet, that works out to about one cubic yard. Push the same run to 3 inches and you need half again as much, so about one and a half cubic yards. A 4 foot by 60 foot strip is 240 square feet, which is roughly one and a half cubic yards at 2 inches and a bit over two at 3 inches.
Where suppliers differ is weight. Some yards sell DG by the ton rather than the cubic yard, and the tons per yard figure depends on the blend and how damp it is when it is loaded. Ask your supplier for their tons-per-yard conversion and do the multiplication with their number rather than a rule of thumb off the internet. While you are on the phone, ask what coverage they quote per yard at 2 inches, since that is the fastest sanity check on your own math.
Order a little extra either way. Compaction pulls the surface down, so a path measured exactly to the yard finishes shallower than you planned. Rounding up by a partial yard costs far less than a second delivery for the gap you left.
What drives the total cost
Bulk pricing gives you a starting point. Pea gravel commonly runs around 30 to 35 dollars per cubic yard and decomposed granite around 40 to 50 dollars per cubic yard, before delivery and before any local variation. On the 4 by 40 foot example at 2 inches, that is one yard of material, so the stone itself for that path is a two figure number. Even at 3 inches with a round up, you are buying two yards. Delivery, edging, and your Saturday are the bigger line items, and the whole thing still lands far below what any hard surface like poured concrete or set pavers would cost for the same strip.
Pebbles look cheaper on that per yard comparison, and for a decorative bed they often are. On a path, factor in edging along both sides and the top-ups you will buy as stones migrate and settle. That is where the gap narrows.
For anything bigger than a few square feet, buy bulk rather than bagged. A four foot wide path eats bags at an absurd rate, and hauling them one at a time is its own punishment. Ordering landscape rock or DG by the cubic yard gets the whole job delivered in one drop, and you can work out your yardage from the square footage before you call.
Installing either one in a narrow strip
Clear and grade first. Strip the sod and take the topsoil down 2 to 3 inches so the finished path sits flush with the surrounding grade instead of mounded above it. A path that sits proud of the soil line sheds its material into the beds on both sides from day one.
While you are grading, set your pitch away from the house. Even a small fall across the width of the path is enough. A narrow side yard is the worst possible place to trap standing water against a foundation wall.
Set the edging next, before any material goes in. Cutting and staking edging in an empty trench is straightforward. Doing it after the stone is spread means digging it all back out again at the edges.
DG goes in lifts, not in one dump. Spread a layer, wet it lightly, compact it, then repeat until you hit your finished depth. A hand tamper is plenty for a four foot wide path. If the run is long, a rented plate compactor turns an afternoon of tamping into twenty minutes. Stabilized DG is the same process, but follow the manufacturer's mixing and watering instructions exactly, and plan to stay off it for a few days while it cures.
Pebbles need no compaction at all. You spread and rake them level, and that is the job. This is the genuine DIY advantage of pebbles, since one person with a rake and a wheelbarrow can surface a side yard in an afternoon with no rented equipment.
The part most people underestimate is getting bulk material into the side yard in the first place. Before you order, walk the route. Figure out where the truck can dump, whether your gate is wide enough for a loaded wheelbarrow, and roughly how many trips it will take. A yard of DG is a lot of wheelbarrow loads through a 36 inch gate, and knowing that in advance is the difference between an afternoon and a weekend.
What to do next
Pick decomposed granite unless the strip stays wet, and in that case pick pebbles and accept the edging and the raking that come with them. Order 2 inches of depth for a light traffic walking path and 3 inches if the ground is soft or the path carries wheels. Then measure the strip, run the width times length times depth divided by 27, round up by a partial yard, and call for a delivered bulk price on that number. Ten minutes with a tape measure is what keeps this from becoming a second trip and a second delivery fee.
How We Started
We started Mulch Mound because we got tired of the hassle that came with buying landscaping materials. The options were either loading bags into your car at a garden center or calling around to local suppliers, trying to figure out pricing, minimums, and delivery schedules. Neither option felt convenient or transparent.
Three of us – Alec, Mo, and Tyler – decided there had to be a better way. Alec and Tyler got their start back in 2013 running a landscaping business during college, moving mulch and mowing lawns to pay tuition. That experience taught them how frustrating it was to source materials, and years later, that frustration turned into Mulch Mound.
We focus on making it simple to get mulch, stone, and soil delivered directly to your home. Order online, pick your delivery date, and we handle the rest. No loading bags. No calling multiple suppliers. No wondering if you bought enough or paid a fair price.
We work with quality local suppliers in the areas we serve and aim to be straightforward about what we offer and what it costs. Landscaping is hard work. Buying the materials for it shouldn't be.
Frequently asked questions
Does decomposed granite track into the house, and does it stop after it settles?
Some of it comes indoors on shoes, and the worst of it is in the first season and during dry spells. A rough timeline helps set expectations. The first few weeks after install are the dustiest, it improves markedly once the surface has taken a few rains and some foot traffic, and after the first year it is a minor annoyance rather than a daily one. It never reaches zero.
You can shorten that curve. Keep the path lightly damp for the first week or two while it is knitting, watering it the way you would water in new seed, because damp fines stay put and dry ones ride shoe treads. If the path leads to an entry you use daily, run stabilized DG or set a couple of pavers for the last few feet so the surface right at the threshold is the hardest part of the run.
Can I put pebbles over an old DG path, or DG over pebbles?
Neither layering works. Pebbles spread on top of compacted DG give you rolling stone sitting on a hard slick base, which is the worst combination of both materials underfoot. DG poured over pebbles behaves differently but ends just as badly, because the fines sift down into the voids between the stones and you lose the compacted surface you were paying for.
The honest answer is to rake out and remove the old material first. On a narrow path that is a shovel and wheelbarrow job, not a machine job, and it is worth the hour.
Which one is better if dogs use the side yard?
Compacted DG, in most cases. Round pebbles are hard on paws over a long run, and they get picked up in fur and between toes and carried into the house. A firm DG surface is easier for a dog to walk and trot on.
Cleanup is also simpler on a firm surface. Waste sits on top of compacted DG and can be picked up cleanly, then the spot rinsed off. On loose pebbles it works down between the stones and rinsing just carries it deeper.
Do I need landscape fabric under a gravel path?
The one case where fabric clearly pays is a soft clay subgrade that turns to mud when it rains. There it acts as separation, keeping your stone from slowly sinking into the soil and keeping mud from pumping up into the stone. That is a structural job, and fabric does it well.
On firm, reasonably draining subgrade you can skip it without much regret. If you do use it, choose a woven geotextile over the thin nonwoven rolls sold as weed barrier, overlap the seams by several inches, and pin it before any material goes down.
Should I hose down a new DG path or let rain settle it?
Water it yourself rather than waiting. Compaction only works when the fines are damp, so the sequence is spread a lift, mist it until it is evenly moist but not running, then tamp. Dry DG under a tamper just bounces and you end up with a surface that looks finished and loosens the first time someone walks it.
After the final lift, give it a light watering once a day for a couple of days if the weather is dry. With stabilized DG, ignore this and follow the product directions instead, since the curing schedule is specific to the binder.