Gravel Pad for a Shed or Hot Tub — Compacted Class 5 With a Border
The shed company delivers to a level pad and drives away; this is the pad — compacted, bordered, a little bigger than the shed, and draining so the floor does not rot from underneath.
JMB Builders builds a gravel pad for a shed, a hot tub or a playset across the Twin Cities metro and north to St. Cloud. The sod and topsoil are stripped, the ground is leveled, fabric goes down, class 5 is compacted in lifts and topped with clean crushed rock, all inside a treated timber or block border that holds the pad and gives the shed a straight edge to sit on. Priced per project, quoted from your photos.
- Priced per project, quoted from photos
- Compacted class 5 topped with clean crushed rock
- Treated timber or block border, pinned
- Sized past the shed footprint, level and draining
- Licensed MN contractor BC809005
Every prefab shed comes with the same line in the paperwork: the customer provides a level, well-drained base. Set a shed on the lawn and the skids sit in wet grass, the floor rots from underneath, the doors go out of square when one corner settles, and the mice have a roof. A gravel pad fixes all of that for less than a concrete slab, drains better than a slab, and can be built the week before delivery.
The build: mark the pad a bit larger than the shed on every side so the roof drip lands on gravel, not on the grass against the wall. Strip the sod and enough topsoil to get to firm ground, and level the cut, taking more from the high side than building up the low side. A woven fabric goes over the soil so the gravel does not disappear into it. Class 5 goes in and is compacted in lifts with a plate compactor, then a layer of clean crushed rock on top that drains and gives the skids a dry, flat bed. The whole thing sits inside a border of treated timbers pinned with rebar, or a course of landscape block, that holds the gravel in and gives you a straight edge to set the shed to.
A hot tub pad is the same build sized to the tub, with a firm, level top layer and a spot for the service panel and the cover lifter. The tub's electrical hookup, the disconnect and the GFCI circuit are done by a licensed electrician, and we set the pad so the conduit lands where the electrician wants it. A poured concrete slab is a different job; if the shed maker or the tub maker requires concrete, we tell you before we quote.
What you supply
- The shed or tub's footprint and the maker's base requirements, usually a page in the order paperwork
- Where it goes, and a look at your city's rules on shed placement and size; we can help read them
- Border choice: treated timbers or a landscape block that matches the yard
- Access for a skid loader or a wheelbarrow path from the driveway, and the delivery date so the pad is done before it
What JMB supplies
- Layout squared to the house or the lot line, and the utility locate before we dig
- Sod and topsoil stripped, ground cut level, spoils hauled or spread where you want them
- Woven fabric over the soil so the gravel stays on top
- Class 5 compacted in lifts and a clean crushed rock top layer screeded level
- Treated timber border pinned with rebar and screwed at the corners, or a landscape block border on its own base
- A check that the pad is level corner to corner and drains, and a photo for the shed company
- Photos of the finished pad in your job folder
How it is priced: per project
Quoted in writing from your photos within one business day. What moves the number:
- Pad size, set by the shed or tub footprint plus the margin around it
- How much the ground slopes: a flat yard is a shallow strip, a slope means cutting deep on one side or a taller border
- Timber border vs. landscape block, and how many courses the slope needs
- Gravel depth the shed maker calls for, which sets the tonnage
- Skid loader access vs. wheelbarrows from the driveway
- Removing an old shed, a rotted deck or a concrete pad first
- A hot tub pad that needs a conduit sleeve and a firmer, finer top layer
Send a photo of the spot from the house and one along the slope, plus the shed size from your order. If the maker's paperwork specifies a base, send that page too.
How long it takes
A typical shed pad: one day, weather permitting. A hot tub pad or a pad on a slope with a tall border: one to two days. Book it at least a week before the shed delivery date.
How your project works
- 1
Send photos, get a written quote
Send three photos of the space and a sentence about what you want. You get a clear, itemized quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.
- 2
Pick materials, or bring your own
We help you choose profiles and materials that fit the house and the budget, or match your existing millwork exactly — or you buy the door or trim yourself and we install it. Everything is confirmed before the crew is scheduled.
- 3
Clean, precise installation
The crew shows up on time, protects floors and furniture, and installs with tight joints and consistent reveals. Photos of the finished work go in your job folder.
- 4
Walkthrough and invoice
We walk the finished work with you. If anything is not right, we fix it before we call the job done. Then one invoice, paid by check or direct deposit — no card fees, no payment links.
Situations and options
Shed pad with timber border
The standard pad. Ground-contact treated timbers pinned into the ground with rebar, squared and leveled, filled with compacted class 5 and topped with clean rock. Sized past the shed on every side.
Shed pad with block border
Landscape block set on its own compacted base around the pad, for a yard where the timbers would look out of place or the slope needs two or three courses on the low side. Reads like a small retaining wall with gravel inside.
Hot tub pad
Sized to the tub plus the cover lifter and a step, with a finer, tightly compacted top layer that will not shift under the weight. We leave a sleeve for the electrician's conduit where they want it. The hookup itself is the electrician's.
Pad on a sloped yard
The uphill side is cut into the slope and the downhill side is held by a taller timber or block border, so the pad is level without a mound of fill. The cut side gets drainage so water off the hill runs around the pad, not under it.
Playset or greenhouse pad
The same build sized for a swing set, a greenhouse or a chicken coop. A playset pad usually gets a rubber mulch or wood chip top layer inside the border instead of rock.
Gravel Pad for a Shed or Hot Tub — Compacted Class 5 With a Border: questions, answered
What is the best base for a shed in Minnesota?
For most prefab and kit sheds, a compacted gravel pad with a border. It drains, so the skids and the floor stay dry; it moves a little with the frost and settles back, so the shed does not crack the way a thin slab can; and it is built in a day. A concrete slab is the answer when the shed maker requires it, when the shed has no floor of its own, or when it is a garage-sized building on a footing.
How much bigger than the shed should the gravel pad be?
Bigger on every side, enough that the roof drip line lands on the gravel and there is a strip to walk on and to mow against. The shed maker's paperwork usually gives a margin and we build to that or a little more. A pad the exact size of the shed means the grass grows against the walls and the rain off the roof washes the edge out.
Do I need a permit for a shed or a shed pad?
The pad itself does not usually need one. The shed often does, depending on its size and where it sits on the lot; every city has a size threshold below which a shed is exempt and setback rules from the lot lines either way. We are happy to help you read your city's page, and we set the pad where the setbacks allow. A hot tub's electrical work needs a permit and the licensed electrician pulls it.
Can a hot tub sit on a gravel pad?
Most makers allow it if the pad is level, compacted and firm enough for the filled weight, and some require concrete; the owner's manual says which. We build hot tub pads with a deeper compacted base and a finer top layer than a shed pad, and we leave a sleeve for the electrician's conduit. The electrical hookup, the disconnect and the GFCI circuit are done by a licensed electrician, not by us.
Gravel pad or concrete slab for a shed?
Gravel for a prefab or kit shed with its own wood floor: cheaper, drains, done in a day, and easy to level again years later if a corner settles. Concrete when the shed has no floor, when the maker requires it, or when it is a large building that will hold a vehicle. Concrete also holds moisture against a wood floor sitting on it unless there is a gap, which is one more reason most small sheds are better off on gravel.
Will the gravel pad heave in winter?
A little, and it settles back, which is the point of gravel. Frost moves everything in Minnesota; a compacted gravel pad moves as a unit and comes back level in spring, where a thin slab cracks and stays cracked. The fabric under the gravel keeps it from mixing with the soil, and the border holds the edges so the pad does not spread. Water is what makes frost heave worse, so the pad is set to drain.
Recent JMB work, from our job log
59 installs recorded across 30 Twin Cities communities since Dec 2025. Window and door installs for homeowners and for the builders and dealers we sub for. Counts come straight from our job log; no customer names.
Get a written quote for this job
Three photos and a sentence is enough. You hear back within one business day. Or text the photos to 763-204-2099.
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Read morePage reviewed September 26, 2026 · JMB Builders LLC, MN license BC809005 · All pavers pages
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