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7
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2answers
2k views

How can I efficiently dig small footing holes?

I am trying to dig holes that are 18" square, and 12"+ deep. The site is mostly undisturbed soil, although there is a thin layer of topsoil or fill in some areas. The soil is glacial till, so a mix ...
7
votes
3answers
296 views

What can I do about a Rough opening that is REALLY out of square?

The house I am living in has a rather interesting problem. Due to what I suspect was Jack Daniels building inspections in this town in the 80's, the footing wall under the second floor dining room ...
6
votes
2answers
9k views

What are some tips for tamping gravel?

I'm packing medium-sized gravel (1.5"-minus crushed rock) in to holes, to provide a stable base for pier blocks in clay-rich soil. There are 30 holes, roughly 24" diameter, 18" deep. I have a 10" x ...
5
votes
3answers
788 views

How will concrete fill in?

So I am pouring some footings for a deck I am building and my current plan is to dig a hole that is 18" wide and 18" deep. I'm then going to suspend a sonotube about 6 inches above the bottom (using ...
5
votes
2answers
18k views

How/where can I find out what the frost-line is for my area?

Aptos, CA, United States What service or documentation resource can I use to determine what the frost-line is for my area? I'd be inclined to ask the county building/planning office but I suspect ...
4
votes
2answers
26k views

How should I build the concrete footings for my deck?

I plan on making a small deck and I live in Howard County Maryland. The deck code here says that the concrete footing must be 30 in below ground level and have a thickness of at least 8 inches (i.e. ...
4
votes
1answer
1k views

How do I determine the correct rise of a step for a concrete footing on a slope?

Going to be building a retaining wall in the front yard on a slope. I'm going to be using King size residential bricks to make a 2 wythe wall. Because of the slope I'll need to have 3-4 steps in the ...
4
votes
2answers
5k views

Should I pour a footing and pier at the same time?

I am pouring concrete for deck footings. I need an 18in diameter footing to carry the weight, and I will also use a 8 in diameter pier to bring it to an inch above ground. The footing must be 30 in ...
3
votes
1answer
976 views

How deep do the footings have to be for a gazebo?

I am building a free-standing hexagon gazebo around an existing circular concrete pad, so the gazebo will not have a wooden floor. The only weight that the footings will support is the weight of the ...
3
votes
2answers
626 views

How to repair / reinforce deteriorated footings and subsoil below brick & concrete porch

My fiancee and I recently moved into a 1922 brick craftsman-style home. The front porch has a ~4" poured concrete floor and large solid concrete railing caps (12"W x 4"D). Brick columns support the ...
3
votes
4answers
620 views

What is the laziest way I can build a non-structural, non-aesthetic cinder block wall to contain compost?

I have a ton of brush that I used to burn, but I recently bought a chipper/shredder and want a spot to compost it along with grass clippings and greens. I also have 3 tons of CMUs that are just ...
3
votes
1answer
419 views

How can I fix a tilted concrete shed footing?

We just bought our first home, and it came with a shed (hooray! Workspace!). The shed has a footing that's about 8" wide and runs the perimeter of shed, and at some point erosion has caused the part ...
2
votes
1answer
1k views

Footing for a porch?

To waterproof the front of our house, we have removed the existing porch and we're debating how to build the new one. The cold room that the old porch was on top of is about 4.5 feet wide, 3.5 feet ...
2
votes
2answers
361 views

Footings for free-standing structure

We moved into a house that backs up to some trees and a small creek. There aren't any good trees for a tree house back there, but I would like to build a raised fort for the kids instead. It will be ...
2
votes
2answers
268 views

What's the right approach for insulating the slab & footings underneath a masonry fireplace/heater?

The fireplace will be located in the middle of the concrete slab (away from the foundation stem walls) so it will have its own footing. My impression is that footings should rest on soil & gravel ...
2
votes
2answers
820 views

What can I fill a trench around my house with to avoid creating a drainage issue?

I am planning out my footing insulation job. Right now it's a pretty standard floating slab-on-grade with footings extending down a few feet, and the footings are uninsulated. A ring of concrete was, ...
2
votes
3answers
14k views

Retaining wall: footing or no footing?

I'm looking to build a retaining wall on my sloped backyard. I'll be using cinder blocks (with mortar to join them together and rebar for added stability). (added info: at the lowest point the wall ...
2
votes
1answer
286 views

Deck Footing capacity with BigFoot base

I'm planning a new deck (completely replacing and enlarging an existing deck). The deck will be 25'x15' w/25 ft being attached to the house. I'm trying to determine what footings are required. ...
2
votes
1answer
3k views

How should I build large concrete footings for my deck?

I live in Howard County Maryland. You may find out deck guide useful for this question, although probably not needed. It requires 18 in diameter footings 30 inches in to the ground and must be 8 in ...
2
votes
1answer
4k views

How wide does a 6x6 concrete post footing needs to be?

Need to attach 6x6x8 posts for a free-standing pergola - I'll use Strong-Tie anchors attached to the concrete footing. The hole for the footing will reach well below the freezing line, but how wide ...
1
vote
2answers
131 views

How to create threads in leveling feet

Due to uneven floor, part of the oven does not stay parallel to the counter. I tried to tighten up the foot of the oven but it still does not fix the problem. This is how the foot looks like: Is ...
1
vote
1answer
41 views

Greenhouse (cold frame) side walls - footing question

Planning a hoop house, or cold frame style greenhouse. I live in Nebraska, we get pretty consistent winds, not unusual to have 50 mph gusts. I want set two parallel 3-4 ft tall rows of 4x4 posts, 4 ...
1
vote
2answers
1k views

Adding rebar to deck footings and piers?

I've heard a few people mention adding rebar to deck footings and piers to make them stronger, but I haven't been able to find any details on how exactly to do this. Is it sufficient to just hammer ...
1
vote
2answers
147 views

Using old roof footings for a ground-level deck

I had a 40 year-old, asphalt shingled, hip roof (14x18) over a concrete patio that had 4 posts w/footings that supported it in a line opposite the house. The footings, that are still there and were ...
1
vote
1answer
73 views

how do i replace a fence post that was also used as a deck footing?

So I removed the old broken 4x4 post that was for the fence and deck. I have the deck sitting on stone slab after I held it up with a jack. It had two bolts that I had to cut out that are still in ...
1
vote
1answer
716 views

How tall can I go above ground with a concrete footing?

I am building a 20' x 20' foot deck with a 10' x 12' Pavilion in one corner, away from the house.I need the concrete footings for the pavilion to be flush or just above the surface of the deck. There ...
1
vote
1answer
464 views

Are buried footings required for a shed or other structure to withstand 90mph winds?

I want to build a small 10x10 shed in my backyard. My city code doesn't require building permits for structures under 120 sq. ft. and doesn't require footings that run down below the frost line for ...
1
vote
2answers
37 views

Do deck footings need to be spaced evenly?

I am planning to create a deck around 2 trees. Because of a irregular shape of the deck, it's hard to make the footing spacing uniform. I plan to have them 53" apart but some area will have footings ...
1
vote
1answer
38 views

Soil under slab (sidewalk) washed away and is now causing cracks down the middle

I have a 50' x 6' concrete slab in front of our basement that supports the same size wooden deck above with 6 post for the upstairs. The soil under it washed away due to poor drainage. I have fixed ...
0
votes
1answer
19 views

I need a concrete footing to be 5 feet tall. What circumference and reinforcement do I need?

I am building a deck which will be 24 feet off the ground. In order to use shorter posts can I build footings that will be approx. 5 feet tall from the soil line? If so, how wide around ...
0
votes
1answer
43 views

Footing for deck on slope with one side near grade

I am extending my deck and plan to make it a freestanding deck (just to avoid attaching to the current one but it will be close on top). I plan to have a row of 4 posts on the lower level (left). ...
0
votes
1answer
4k views

What is the proper deck footing depth in Connecticut?

I'm moving a deck footing for an existing deck, the current one is in the wrong location and it's too small. What is the proper depth in Connecticut in order to ensure that it doesn't suffer from ...
0
votes
3answers
5k views

How far does a ground rod need to be from the foundation?

I need to ground an antenna strapped to my chimney, which requires hammering in a new ground rod. However, the entire side of my house is paved, meaning I can't dig it up to find the foundation ...
0
votes
1answer
87 views

Worth it to add footing insulation if there's already a thermal break?

I've been considering insulating the outside perimeter footings of my 1972 ranch house in northern New Mexico. The slab-on-grade it's built on (that constitutes the subfloor) reaches a temperature ...
0
votes
0answers
22 views

Pouring concrete patio over deck piers

I'm thinking of getting rid of our current deck and pouring a patio. Under the deck are 14 8-10"x42" deep footers. I'm wondering if I'm going to run into settling issues since the footers won't ...
0
votes
0answers
34 views

Ground preparation for deck pier block

I am planning to extend my deck, which uses pier blocks as below photo I cannot tell what's underneath this pier block because it was just dirt. There was no pour concrete for certain. So my ...
0
votes
0answers
143 views

Small pergola — 4x4 posts okay? 8“ or 12” footings? etc

We are planning a small narrow "pergola". Actually it is a weird combination structure. My husband wants a pull-up bar, I want it to be a landscape feature that looks nice, and it will be ...
0
votes
1answer
257 views

How wide does a 6x6 concrete post footing need to be using an elevated post base anchor?

I'm building a pergola over a paver patio. The pergola will dimension 11'x 11.5' on center of post with 6x6 posts (4 posts), tied together with sandwiched 2x12 beams. I've laid out footer locations ...
0
votes
0answers
39 views

Do I have to remove large rocks that were used as footings before pouring a new footing?

I am rebuilding the deck to the front porch of a 120 year old house. Upon removing the old porch and locating where the new footings will be I have come across large stones that were embedded and ...
0
votes
1answer
190 views

Connect new footings to old footings

I have a 7 foot section of an addition that has no footing. It is a square addition, so 3 walls on the back of the house. It is about 13 x 12. One of the side walls is missing about 7' of footing and ...
0
votes
0answers
170 views

rain cover for basement steps

I'm making a plywood rain cover for basement steps. The area is 5' wide by 8 'long. The height will be 8'. I want to make concrete footings for the support posts. What size and width of hole for ...