Concrete projects such as patio building need a good form to hold the concrete as its poured. The most common form type is a frame made of lumber. Variations on this basic method are used for different types of concrete pours.
Things You'll Need
- Hand tamper
- Finely crushed gravel
- Wooden stakes
- Nonstick cooking spray
Excavate the area for your concrete pour to a depth that is the same as the planned slab thickness, plus 4 inches. Compact the soil within this area firmly, and add a 4-inch layer of finely crushed gravel.
Use dimensional lumber laid on edge to line the sides of the excavated area. Select lumber that is the same width as the thickness of your slab. For example, if you are pouring a 6-inch slab, use 2x6 lumber.
Nail the lumber together at the corners.
Drive wooden stakes into the ground outside the form, spaced every 2 feet. Place the stakes directly up against the form to provide additional support when the full weight of the concrete is poured.
Spray the inside face of the lumber liberally with a vegetable-based nonstick cooking spray so that the cured concrete will release easily from the form.
How to Design Formwork
Formwork is used in construction to create a mold into which concrete will be poured. The formwork gives the concrete a place...
How to Design Falsework and Formwork
Formwork, also known as falsework, refers to the temporary structures in place to cast concrete building elements. Formwork is required for most...
How to Install Concrete Formwork
When building a concrete porch or a sidewalk, the concrete is poured in a liquid form, then sets over a period of...
How to Pour a Concrete Patio
Pour your own concrete patio using these instructions. Does this Spark an idea?
How to Remove Concrete Formwork
Pouring concrete usually requires that you construct a set of forms beforehand. The formwork serves as a frame for the shape of...
How to Build Wooden Concrete Forms
Concrete is a strong and versatile building material. With the advent of ready mix cement, handy homeowners can do a lot of...
How Do I Install Dogs for Exterior Shutters?
Shutter dogs are commonly found on wooden exterior shutters. They are designed to hold the hinged shutter open, although they are more...