Hamilton Shed Slabs

07 809 4186

Hamilton Shed Slabs

Shed Slabs Hamilton

You have chosen the shed, the kitset is on order, and now you need a slab that is square, level and ready to go on the installation date. That is exactly what we do. We set out, box, reinforce and pour shed slabs in Hamilton for garden sheds, garages, workshops and farm buildings.

We work straight from your shed manufacturer plans, so the dimensions, edge rebates and holding-down bolt positions are all correct rather than approximate. Underneath goes excavation to firm ground, compacted hardfill, polythene and steel reinforcement, with the slab thickened wherever vehicles or machinery will sit. Diagonals are checked before the pour and again afterwards. Most shed slabs are set out, poured and finished within a week, and we can always work around your kitset delivery date, so that nothing on your build site ever sits around waiting.

  • Garden Sheds to Workshops
  • Built to Kitset Plans
  • Bolt Positions Set Out
  • Square, Level & Ready

The Upside

Benefits of Shed Slabs in Hamilton

A shed is only ever as good as the floor it stands on. Here is what a properly poured slab does for the investment sitting on top of it.

01

Keeps Your Shed Dry

A slab with polythene underneath and a slight fall at the doorway stops ground moisture wicking up and stops rain running in. Everything that you store inside stays completely dry, which is after all the entire point of the shed.

02

Stops Rust And Rot

Steel framing bolted straight to bare ground or onto loose gravel corrodes at the base within just a few years. Fixed down onto a dry concrete slab, that very same shed will keep its structural integrity for decades longer instead.

03

Takes Vehicle And Tool Loads

Poured at the right depth with mesh reinforcement, a shed slab handles cars, trailers, ride-on mowers, hoists and heavy work benches. Gravel and paver floors rut and spread under exactly that kind of point loading within a year or two.

04

Easy To Sweep And Clean

A trowelled or broomed slab sweeps out in minutes and takes an oil spill without any complaint at all. Anyone who has tried to find a dropped socket in a gravel shed floor will understand exactly what the difference is.

05

Correct Anchoring For Your Kit

Kitset sheds are designed to bolt down onto concrete, and the wind loadings in your building consent assume exactly that. A proper slab gives every bracket and every anchor a solid, engineered fixing point that it can actually grip onto.

06

Cheap Insurance For A Big Investment

The slab is usually only a small fraction of the total shed spend. Skimping there to save a few hundred dollars puts the whole structure, and everything that you store inside it, at genuine and unnecessary risk of long-term damage.

Why Us

Why Choose Our Shed Slab Contractors in Hamilton

Shed slabs live or die on accuracy. A slab ten millimetres out of square will fight the installer all day and can stop the kit going together at all.

01

We Read Your Shed Plans

Send us the manufacturer drawings and we will work directly from them. Overall dimensions, rebate details, bolt centres and any required slab thickenings all come straight off the manufacturer plan, rather than off a rough sketch or a site guess.

02

Rebate Edges Where Required

Many kitsets need a rebated or dropped edge so the wall sheeting sits below slab level and keeps driving rain out. We form that detail properly rather than leaving your installer to improvise something on the day of the installation.

03

Set Out Square And True

Diagonals are measured before boxing, checked again immediately before the pour and confirmed once the concrete is down. A shed slab that is out of square is a problem that nobody can fix afterwards, no matter how good they are.

04

Bolt Positions Marked Exactly

Where holding-down bolts are cast in rather than drilled later, we set them from a template to the millimetre. Getting these wrong means drilling out new fixings and permanently weakening the edge of your brand new slab in the process.

05

Ready For Your Shed Installer

We schedule around your delivery and installation dates and allow proper curing time before anybody starts bolting anything down. The slab is finished, cured and swept clean by the time your shed installer turns up on site to start work.

06

Free Quotes, Full Insurance

A free on-site measure, a written itemised price and a workmanship guarantee in writing on completion. We carry full public liability cover, and we leave the site swept and genuinely ready for your kit to be delivered and bolted down.

Helpful Answers

Frequently Asked Questions

Our Hamilton team is happy to help. Call us for a free, no-obligation chat about your concrete project.

Call 07 809 4186
01 How much does a shed slab cost in Hamilton?

Shed slabs are usually priced between $110 and $170 per square metre, though small slabs cost more per metre because delivery minimums and crew setup are the same whatever the size. A typical 3 by 6 metre shed slab therefore often comes in as a single job price rather than a rate. Access for the truck, how much digging is needed and any drainage work are the main variables.

02 How thick should a shed slab be?

For a standard garden shed holding tools and a mower, 100mm over a compacted basecourse with steel mesh is plenty. If the shed will house a vehicle, a boat, a workshop with heavy machinery, or a hoist, we increase that to 125mm or more and add heavier reinforcing plus thickened edges. Tell us what is going in the shed and we will specify accordingly.

03 Does the slab need to be bigger than the shed?

Usually yes, by around 50 to 100mm on each side, so the shed sits fully on concrete and its walls are not overhanging an edge. That extra margin also gives you a small apron to fix the shed down to and keeps water from running straight into the base of the walls. We will confirm the exact dimensions against your shed kit before setting the boxing.

04 Do I need consent for a shed slab?

Small sheds under 10 square metres generally do not require building consent, but larger sheds, anything with plumbing, and anything close to a boundary often do. Because the thresholds depend on size, height, use and location on the section, we check the specifics at quote stage. If consent is needed we can work to the consented engineering and coordinate with the inspections.

05 How long does a shed slab take?

Most shed slabs are completed in two to three days on site: excavation and cartage, then base preparation and boxing, then the pour and finish. You can walk on it the following day. We recommend waiting seven days before erecting the shed and fixing it down, and the full 28 days before parking a vehicle or moving heavy machinery onto it.

Book Your Shed Slab Now

Send us the shed dimensions or the manufacturer plan and your installation date. We will confirm the slab detail, book the pour to suit your timeline, and quote it in writing.