Pouring Concrete Piers For Deck

Hang a plumb bob from the end of one 2x4.

Pouring concrete piers for deck.

That s why concrete piers poured in waxed cardboard tubes and smooth wooden installing deck posts work well for below grade support. Decks and other permanent structures require deck supports and footings made from structural strength concrete mix. These requirements will include minimum diameter and minimum depth of the footings. The price of pouring concrete footings depends greatly on the length and diameter of the footing your deck needs.

If the area receives frost the piers can be installed above ground. If you bed a pier in a concrete footing however you need to soak it in water. I am redoing some very poor workmanship under my front deck porch roof and we ended up needing to install brand new footings four feet down below the frost l. In this video this old house general contractor tom silva shows how to dig and pour concrete supports.

A dry pier set in a wet footing will draw moisture out of the concrete weakening it. This video shows you how to build the base of a deck foundation or concrete deck footing using quikrete quik tube building forms. Above ground deck piers are precast tapered concrete blocks with a wide base that are intended to rest directly on the ground or a concrete base. It is important to check local building codes for construction requirements in your area.

But even if footings are deep enough ice lenses can latch onto the rough surfaces of wood and concrete and lift footings and posts from the side. Precast concrete piers are engineered to accommodate joists for ground level decks without footings or posts and anchors set in footings. When constructing a deck in an area that receives minor amounts to no frost these piers often serve as suitable deck footings. A 12 diameter footing will require two 60lb bags of concrete per foot of depth.

Lay two long straight 2x4s on the deck allowing them to extend out to the center of the two footing holes. Check out our deck footing frost map to help you understand how deep your footings will need to be excavated. We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads. By justin fink pouring accurate concrete piers.

Successfully construct a. The height of concrete piers isn t crucial on a raised deck because leveling the beam is a matter of adjusting the length of each post running between pier and beam.