The slab the house sits on
Slabs for new homes and additions, formed and poured to the plans. Send us the plans or a photo of the lot to start.
House slabs
Everything in a house gets measured off the slab. The walls stand on it, the plumbing comes up through it and the flooring goes straight on top. If it is out of square or out of level, every trade that follows has to work around it. So a house slab is less about the pour and more about the days before it, when the footings, the pipes and the layout all have to be right.
We pour house slabs for builders, for owners building their own place and for additions on a home that is already standing. The thickness, the footings and the steel come from your plans and your engineer, not from us guessing. Send the plans if you have them, or a photo of the lot and a note on what you want to build.
Slabs we pour
- New home slab
- The full footprint of a house, poured to the dimensions and details on the plans.
- Room addition slab
- A slab for an added bedroom, family room or kitchen, set to meet the floor of the house that is already there.
- Attached garage slab
- The garage floor, typically sloped toward the door so water off a wet car runs out.
- Guest house slab
- A separate slab for a detached living space, with its own footings as the plans show.
How the job goes
- 1
Start from the plans
We read the foundation sheet before anything else. It gives the size, the footing depths, the steel and where every pipe and anchor has to land. If something on the lot does not match the drawing, we raise it with you or the builder before we dig.
- 2
Footings and forms
The pad is graded and compacted, footings are dug where the plans show them and forms go up level. We check the corners by measuring the diagonals, because a slab that is out of square shows up later in every wall.
- 3
Plumbing, steel and inspection
The plumber and the electrician set their pipes and sleeves in the ground before the pour. Then the moisture barrier and steel go in as the plans call for. Your city or county may require an inspection at this stage, so we plan the pour around it.
- 4
Pour, finish and cure
The slab is placed, screeded level and troweled smooth so flooring can go over it. Anchor bolts are set while the concrete is wet. In summer heat we keep the slab damp for the first several days. Your builder sets the date framing can start.
What makes it last
Concrete fails from the bottom up. These are the parts you will never see once the job is done, and they decide how the slab holds up.
- Built to the engineer's numbers
- Slab thickness, footing size and steel are set by the plans and local code, and they change with the soil and the house. We do not swap in our own numbers. We build what is drawn and ask when something is unclear.
- Ground prepared first
- Parts of Washington County have soil that swells or settles when it gets wet. If your plans or a soils report call for specific pad preparation, that work comes before the forms do.
- Square and level
- Framers, cabinet installers and tile setters all start from the slab. We hold the forms to the plan dimensions and check level across the whole pour, so the trades after us have a true surface to build on.
- Pipes and bolts where they belong
- A drain that is a few inches off ends up under a wall or in a doorway. We check the rough plumbing and the anchor bolt layout against the plans before the truck is called, when moving something is still easy.
Start with a photo.
435·220·5536Text us a photo of the spot and rough measurements. We will tell you what we can from the photo, or come out and take a look.
Get a quoteHouse slabs: straight answers
Do you need engineered plans?
For a house slab, we build from plans. Your city or county may require a permit and stamped drawings for a new home or an addition, so check with them first. If you are early in the process, send what you have and we will tell you what we still need to see.
Can you pour the slab for an addition?
Yes. The new slab is set to the floor height of the house so the doorway between them comes out flush. How it ties to the old foundation comes from the plans. Send a photo of the wall where the addition goes and the size you have in mind.
Do you work with owner builders?
Yes. We pour for builders and for owners running their own project. With an owner builder we talk through the order of things early, since the plumber, the inspection and the pour all have to line up.
When can framing start?
That is your builder's or engineer's call, and it depends on the weather and the mix. Concrete keeps gaining strength for about a month and is typically ready for framing well before that.