17+ How To Dig A Footer

Start by marking the location of your deck on your exterior wall then using a large carpenters square string line and measuring tape. This could involve digging or cutting a gap in the actual buildings external wall to assess the grounds depth.

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STEP 1 Marking Footing Locations.

. Measure the Essential Range. Hold out the plan See more. Measure over from the chalkline to establish the center of the footing.

In this example we dug 40-in. Deck footings need to be dug below the frost line. When installing large diameter 20 in.

To 36 in bell-shaped plastic footing forms we dig a narrower shaft and widen the hole just at the bottom. You can dig the footings 6 deeper than. Mark plumb under the control line at each end to mark a run of footings.

If you footing is going to be. Make sure the bottoms and sides of the holes are compact and solid before pouring your concrete. Make sure the lumber is straight square it up and then spray paint a line about 8 inches on the outside of the box to represent where you need to dig your trench.

Locate each footing by measuring the distance and plumbing down with a level. Start with the home level planned for ground. To decide the diggings appropriate depth measure the height of the footings base wall joists and flooring from there.

Snap a chalkline under the control line to use as a reference to locate the footings.

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