Concrete Shed Slabs & Pads
Concrete shed slab installation across North Carolina — 8x10 to 12x20 pads poured with the right thickness, gravel base, edge detail, and slope for a dry shed floor. Zero deposit, licensed and insured, written spec including moisture barrier and permit notes.
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Recent Shed Slabs Projects
Real customer jobs we've poured. Swipe through and picture yours next.
Shed Slabs
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Shed Slabs
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Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Shed Slabs
Recent Job
Real Projects We've Completed
A cross-section of our real project work — driveways, patios, porches, pool decks. Every pair below is a real Local Concrete Contractor install.
Backyard Patio
Full tear-out, new pour with brick-border detail
Stamped Pool Deck
Weathered deck replaced with textured stamped pour
Front Porch & Steps
New entry pad plus poured steps to the door
A shed slab looks like a small pour on paper, but the small details are what keep the shed dry and level ten years down the road. Wrong thickness and the anchor bolts pull loose in a windstorm. No gravel base and the slab sits in a bathtub every spring. No moisture barrier and the wood tools and lawn mower spend every summer breathing damp air. Four inches of concrete on four inches of compacted stone with a proper slope and a threshold that clears the door swing is a small pour that either holds or fails on the base prep, not the concrete.
Local Concrete Contractor pours shed slabs and outbuilding pads across North Carolina — 8x10 storage sheds, 10x12 workshops, 12x16 lawn-equipment barns, and pads sized for pre-fab buildings sold at every big-box store. Every job includes a site walk to check grade, drainage, and permit thresholds in your county. The spec — thickness, base depth, moisture barrier decision, anchor plan, edge detail, slope — gets written down before pour day. No deposit, no last-minute add-ons, no assumptions hidden in the number.
Our Shed Slab Services
Shed and outbuilding pads come in a small handful of common sizes, and the spec changes with what will actually sit on the slab.
- Standard shed pads — 8x10, 8x12, 10x10, 10x12, 10x14, 12x12, 12x16, 12x20 poured to the manufacturer's footprint
- Pre-fab building pads for the common big-box models where the manufacturer specifies pad size and anchor pattern
- Lawn-equipment barns and small storage buildings sized for zero-turn mowers, small tractors, or an ATV
- Playhouse and greenhouse bases where a thinner slab or a perimeter footing with gravel infill can be the right answer
- Generator pads and HVAC condenser pads — small pours with the same spec discipline as a shed
- Pool-equipment pads for pump, filter, and heater — often four inches with a lip to contain leaks
- Tie-in pads connecting a shed door threshold to an existing sidewalk or patio at correct elevation
- Thickened-edge pads for pre-fab buildings that specify anchor bolts around the perimeter
- Ribbon or split-strip pads where a full slab isn't needed and only the load lines matter
If you already have the shed on order, bring the pad-size specification from the manufacturer and we'll match it. If not, we'll size the pad against your door swing and the equipment you're storing.
Slab Spec — Thickness, Base, Moisture Barrier
The pour spec for a shed slab is short but every line matters. This is a slab that either holds up because of the base, or fails in the first spring because the base was skipped.
- Slab thickness — four inches is the working default for typical residential sheds and light-storage buildings. Five to six inches is what we spec if the shed will hold a tractor, ATV, or workshop equipment with point loads.
- Compacted gravel base — four inches of number 57 stone over compacted subgrade is the working default. On soft clay we go deeper. On well-drained sand we sometimes go lighter. The base is what keeps water from pooling under the slab.
- Moisture barrier — six or ten mil polyethylene under the slab whenever the shed will store wood, tools, ammunition, electronics, or anything moisture-sensitive. Skip it and the slab wicks ground moisture into the shed year-round.
- Reinforcement — wire mesh is legitimate for small shed slabs where the code allows it. Number-three or number-four rebar on twenty-four-inch centers is the upgrade for a workshop or equipment barn.
- Thickened edge — where the shed anchors down through the slab or where a pre-fab building specifies a perimeter bearing detail. Twelve inches deep by twelve wide is a common thickened-edge dimension.
- Slope — a one-eighth to one-quarter inch per foot slope from back to front keeps the interior dry when the door is open and rain is blowing in
- Anchor bolts or wedge-anchor pattern set into the wet pour to the manufacturer's spec so the shed ties down for wind loads
All of that shows up on the spec sheet you sign.
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Why Local Concrete Contractor?
- 01.Precision craftsmanship
- 02.Transparent pricing models
- 03.Dedicated project manager
- 04.Zero Deposit Required
Our Concrete Installation Process
Every shed slabs we pour runs through the same 18 checkpoints — from the on-site consult through the final walkthrough.
Consultation & Estimate
We meet on-site to assess scope, discuss vision, and provide a detailed, transparent quote tailored to your property.
Logistics & Scheduling
Coordinating crew, equipment, and weather windows to ensure a seamless project start.
Custom Mix Design
Ordering specific concrete additives and slump requirements based on current temperature and humidity patterns.
Site Preparation
Preparing the workspace and establishing safe access routes for our equipment and crew.
Demolition
Removal and disposal of existing concrete, leaving a clean slate for your new installation.
Grading & Forming
Expert grading for proper drainage and setting high-quality lumber forms for clean edges.
Reinforcement
Installation of steel rebar or wire mesh grid, using 1/2 inch grid for structural tensile strength.
Pre-Pour Inspection
A final check of elevation, form stability, and reinforcement placement before the truck arrives.
Slump Testing
Verifying concrete consistency on-site to ensure it meets the engineered mix design.
Placement
Controlled pouring and placement of concrete to avoid cold joints and ensure uniformity.
Bull Floating
Pushing aggregate down and bringing 'cream' to the surface for a smooth finishable layer.
Edging & Jointing
Creating rounded edges for durability and cutting control joints to manage expansion.
Fresno Finish
Final smoothing pass to close the surface pores and prepare for texturing.
Decorative Detailing
Applying final broom texture, stamp patterns, or color treatments as specified for your project.
Form Removal
Careful stripping of forms once concrete has reached initial set stability.
Final Walkthrough
Reviewing the finished project with you to ensure every detail meets the standard.
Usage Guide
Providing clear instructions on cure times — when you can walk, drive, and park on your new concrete.
Project Completion
The job is done right, ensuring you have a durable surface for years to come.
Permits, Setbacks, and Placement
Most NC counties allow a residential storage building up to a certain square footage without a permit, but the number varies by jurisdiction, and setbacks always apply.
- Most NC counties exempt sheds under 200 square feet from a building permit, but this varies — some are 144, some are 400, and municipalities inside a county can set stricter numbers
- Setback rules almost always apply regardless of permit exemption — typical residential setbacks put an accessory building five to ten feet from a side or rear property line and further from the front
- HOA rules can be stricter than county rules on placement, height, siding, and color — worth checking before we form up
- Septic drain fields are a hard no for slab placement — pouring a slab on top of a drain field kills the field
- Underground utility lines get called in before we dig — 811 locates are standard practice on every dig
- Easements (drainage, utility, sewer) show up on the plat and often prohibit permanent structures inside them
- Tree canopy overhead is worth noting — sap, leaves, and root disturbance during dig are all considerations
- Access for the concrete truck matters — we'll flag if a ready-mix truck can't reach the pad location and whether a buggy or wheelbarrow pour is needed
We'll walk the site with you, ask what you've already checked with the county or the HOA, and flag anything we see that could hold up the pour.
When Gravel Isn't Enough — Why Some Sheds Need Concrete
A gravel pad is a legitimate shed base for a lot of situations, and a lot of sheds sit on one for decades. But there are specific reasons homeowners upgrade to a concrete slab, and knowing which one applies helps the spec decision.
- Anchor requirements — pre-fab buildings, larger sheds, and code-required tie-down for wind loads all need something a wedge anchor can grip. Concrete gives you that; gravel doesn't.
- Rodent and pest exclusion — a concrete slab with a proper edge seals the underside of the shed from rodents, snakes, and burrowing insects better than gravel
- Moisture control for stored items — a slab with a moisture barrier holds interior humidity down. Gravel breathes, which is fine for a lawn mower but not for stored electronics or wood shop tools.
- Heavy equipment loads — a zero-turn mower, small tractor, or motorcycle concentrates load on the wheels. Gravel migrates under repeated point loads. Concrete doesn't.
- Workshop use — if the shed is going to hold a workbench, drill press, or table saw, a flat rigid slab is worth having
- Level floor for stored items on shelves — a gravel pad works, but over years small shifts stack up. Concrete stays flat.
- Resale — a concrete-slab shed usually reads as a permanent improvement in a buyer's mind; a gravel-pad shed sometimes doesn't
If the shed is just holding a mower and some rakes, a properly built gravel pad may be all it needs — and we'll say so instead of pushing a pour.
Why Homeowners Work With Us
Local Concrete Contractor pours residential concrete work across the North Carolina Piedmont and out into the coastal plain. Shed slabs are a small pour where a lot of contractors either won't show up or cut corners on base prep. We run it the same way we run a driveway.
What that looks like on your shed pad:
- Zero deposit — you pay after the slab is poured, finished, and walked with you, not before
- Free on-site quotes with the actual scope, thickness, base depth, moisture barrier decision, and anchor plan written down
- Licensed and insured — proof of coverage available before we set the first form board
- No minimum-job pushback on small pours — we take shed pads seriously because the small ones fail the same way big ones do
- Real photos of prior shed and outbuilding pads in nearby neighborhoods, not stock images
- Straight answers on the cost drivers (pad size, thickness, base depth, moisture barrier, thickened edge, site access) so you can see where the number comes from
- Same crew from base prep through final broom pass — no subcontracting a small job out to whoever is closest
If you're still comparing quotes, ask each contractor what base depth they'll put down, whether a moisture barrier is included, and how the anchor detail matches the shed manufacturer's spec. Those three answers separate a shed pad that holds for decades from one that fails in the first spring.
Shed Slabs
FAQ
Straight answers on shed slabs installation — thickness, base prep, cure time, deposit, and what it takes to make the slab last.
Get Free QuoteWhat thickness should a shed slab be?
Four inches is the working default for typical residential storage sheds and lawn-equipment buildings on a compacted four-inch gravel base. Five to six inches is what we spec if the shed will hold a tractor, ATV, motorcycle, or workshop equipment with point loads. A thickened perimeter edge is common where a pre-fab building specifies anchor bolts around the outside. Correct thickness on a correct base is what keeps the slab flat under repeated equipment loads.
Do I need a permit for a shed pad in NC?
Do shed slabs need a moisture barrier?
How long does the slab cure before I can put the shed on it?
Gravel pad or concrete slab — which do I need?
Do you require a deposit for a shed pad?
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