Got Question?

We value your opinion at all-concrete-cement.com

see other visitors' questions below

Questions or Comments

We welcome your Questions and/or Comments

[ ? ]

Upload 1-4 Pictures or Graphics (optional)[ ? ]

 

Click here to upload more images (optional)

Author Information (optional)

To receive credit as the author, enter your information below.

(first or full name)

(e.g., City, State, Country)

Submit Your Contribution

 submission guidelines.


(You can preview and edit on the next page)

Other Visitors' Questions

Click below to see responses to other visitors' questions...

Compacting "overdig" under footing 
Question: Naturally, at the excavated elevation of my footing, there were several large fieldstones. I had to dig lower than intended to remove them …

Above ground monolithic detached garage slab and rebar 
Question: I have had a contractor to construct a 14' x 20' d detached garage. It has trusses and is framed on 16" . The area was filled with slate type …

Footing size 
Question: Will a 24 inch wide, 8 inch thick, Footer work on my two story home when we don't know the soil condition. The Blue Prints say around 14 inch …

I beam requirements calculation 
Question: I followed thru with Lou's example calculation of I beam size for supporting concrete ceiling-- but find myself questioning my results... …

Beam Connection Detail 
Question: Hi, I am designing a house and I have 3 main beams in the basement that the I-Joist set on top of. The beams will set down in the concrete. …

how to build concrete footing forms 
Question: what is the best way to build concrete footing forms? Answer: Since most concrete footings are buried beneath the ground, their finished …

suspended concrete slab with steel beam over metal deck 
Question: I'm planning a small two story garage with a living space (recording studio) in the basement with a suspended concrete floor on the main level. …

what size i beam for suspended concrete slab 
Question: what size i beam for suspended concrete slab? Answer: The size of i beam to support suspended slab depends on the length or span of …

location of termination of concrete pouring 
Question where is the recommended location of termination of concrete pouring? Answer Hi Awi, The concrete termination point you're talking about …

How to correct a poured slab with no footing 
Question: I have an existing patio slab adjacent to my house. How do I go about adding footings for a patio cover? Answer: The answer is dependent …

Tub platform pier footing settlement 
Question: I built a hot tub platform 10' x 10' with nine pier footings (8-inch diameter holes) using 4x6 treated posts. The tub retailer placed and …

Gravel for a base 
Question: Should there always be gravel in the base of a concrete patio? If there is enough drainage in the soil, is it OK to not have gravel as a …

capacity of square tube steel 
Question: what is the capacity of 2x2 or 3x3 tube steel? Answer: Hi Tom, The tube steel capacity is calculated by using the formula S=M/Fy, where …

Reinforcement at continuous footing corners 
Question: How does the footing reinforcements work at corners? Answer: Per code the reinforcements at corners of continuous footing need to be …

Footing keyways 
Question What is the purpose of footing keyway? Any tip on how to install them? Answer The idea behind footing keyway is to aide the steel reinforcements …

step footing detail 
Question: Is it ok to build my house on sloped footing? What does step footing look like? Answer: Step footing is one of the least understood …

apartment complex balcony and stairs 
Question: I've got ten balconys and stairs to build for a low Income apartment complex. there are no plans for this project.what I have come up with …

Spanned concrete strength and support deflection 
Question: I have a stamped concrete porch that spans approximately 12' by 40'. The concrete was poured on metal decking with 4" angle irons supporting …

Shear walls and Clerestories 
Question: We want to build a small office addition to our detached garage. If we put a clerestory (glass just under the roof) all around on all four …

Steel Posts Embedded in Concrete & Block wall 
Question: I like your website but I still have 3 questions: 1. How do you cap a block retaining wall with ½” thick steel to provide the substrate to …

Thickness of Concrete pad needed  
Question: I'm installing a water tank with an 8 foot diameter. It will weigh 20,000 pounds when full. I want to put it on a pad 10 feet by 10 feet. …

Steel Support for 4 Inch Slab 
Question: As a steel estimator my concrete knowledge is little or none, but I have a contractor that has asked for a number on providing beam and pour …

How do you add a footer to a carport to garage conversion with walls already in place? 
Question: I would like to know how to fix a carport to garage conversion that was done without permits and has no continuous footer? Is it possible …

Concrete Piers Above Floor Slabs 
Question: I have a project that requires the placement of 6 steel columns. We cannot penetrate the existing basement slab. Can a reinforced pier be …

Click here to write your own.

Footing to support 20,000 pounds water 
Question: Hi ,how deep does concrete have to be for a 16 by 16 floor to hold 20,000 pounds of water for fish on half of it ? Answer: Thanks …

Suspended Garage Slab 
Question: We have a block wall foundation that measures 21'4"X20' with a block wall dividing the 21'4" side. Block is 8" with the cores poured with …

Suspended concrete deck cover 
Question: I am building a suspended concrete deck using angle iron as a border. How do I keep the concrete and/or water from running underneath and …

Appropriate footing size based on column load 
Question: If the soil bearing capacity is 2,500 lbs/sf and the column load on a footing is 15,000 lbs., calculate the appropriate size of the footing …

Basement wall bottom plate on uneven concrete 
Question: I was under the impression wall base plates should be attached to basement concrete floors with lag bolts. The builder in my case pressed …

Angle Iron size and thickness 
Question: WHAT SIZE AND THICKNESS OF ANGLE IRON WOULD YOU RECOMMEND FOR SUPPORTING A 3-5" GRANITE VENNER WALL 5' HIGH. THIS ANGLE IRON WOULD BE SET …

Monolithic foundation on a slight slope 
Question: I am thinking of using a monolithic foundation for my shop, but there is about a 1 foot drop in elevation where we will be locating it. Will …

concrete slab compaction, settlement, and cracking 
Question: My builder is going to use sand as the top layer for a concrete slab for my new home. And he said that the tractor will compact the soil, …

Live and Dead Load for a thin conc slab 
Question: On a pedestrain footbridge, what would the expected LIVE and DEAD loads on a series of concrete slab (1.550m x 1.550m) support on two RSJ's …

Basement house 
Question: I'm thinking about building 900sq ft basement and will live in it for a while before finishing the top of house later down the road. What …

Steel Detail for Concrete Footing 
Question: I am building fire escape. There is no steel detail included in the plans. We have no clue what the description is calling for. It reads …

Mow Strip/Mow Curb/Continuous Footing 
Question: Can you tell me the difference between the terms: Mow Strip Mow Curb Continuous Footings as it might pertain to a fence project? …

what is the capacity of ST4x4x.250 
Question: I need to reinforce an old platform will be 20x12 feet 3 post 4x4x.250 in each side 3beam across ST4x4x.250. What is the capacity 8 feet …

Monolithic pour 
Question: I want to do a monolithic pour for an addition the crawl space is 40" there will be an 8"deep by 24" wide footer and poured with a 4" slab …

thickness of concrete on metal decking 
Question: I am pouring a slab on a suspended metal deck. I am using Three inch decking with a maximum span of nine feet. The steel supplier told me …

Concrete slab tools 
Question: I am planning to pour concrete slab at my backyard. Can you tell me the tools and material i need. Answer: Hi Ron, Below are some of …

footing/foundation cross section 
Question I am general contacting my own house. I have extensive building experience from the after framing stage onward, so I have hired a contractor …

beam size for 20ft by 20ft shed 
Question: What beam size to use for 20ft by 20ft shed? Answer: Assuming the beam size you're looking for is for the ridge beam at the highest …

Basement Footings 
Question: I am remodeling a basement and have to support two columns which are schedule 40 rated for about 20,000 Pounds Each. I am installing a …

Retaining wall footing for patio  
Question: How deep and wide should the footing be to act as a wall retainer for a patio in Chicago? Answer: Hi George, If I understand your question …

disadvantage of monolithic concrete pour 
Question: what are the disadvantages of mono pour? Answer: The biggest disadvantage of monolithic concrete pour is the amount of concrete waste …

fence footing detail 
Question: How does fence post detail look? Answer: A fence post detail look similar to detail 17 below minus the reinforcements. Most fence design …

how do you connect a w-shape column to concrete footing 
Question: how is a w column connect to concrete footing? Answer: Wide flange column, w or I column all refer to the same column shown on detail …

ledger angle steel 
Question: What are ledger angles for? Answer: Ledger angles serve two purposes one to support vertical load. as shown on detail 29 below, ledger …

placing concrete on a composite deck 
Question: Is placing concrete on the ground different from composite deck? Answer: To an iron worker or those that work mostly in commercial construction, …

Click here to write your own.

what size 30 ft steel beam  
Question: how deep would 30ft long steel beam? Answer: The rule of thumb in beam design is length divide by 2 in inches as the beam depth. Use …

concrete pier footing 
Question: How do I build pier footing? Answer: A pier footing is often higher than it is wider and longer. As shown on details 15 and 18 below, …

concrete post footings 
Question: how does concrete post footing look? Answer: Depending on the type of post, the footing can be anything you want it to be. If the post …

Garage Floor & Steel Beam Support 
Question: I'm in the process of designing a house for a challenging lot which will require a garage suspended well above grade. The garage and part …

concrete step reinforcement detail 
Question: Are concrete stairs required to be reinforced, if so where do you put the reinforcements? Answer: Such professional designers such …

how can i add a column to existing foundation 
Question: how do i add a column to existing foundation to support a roof deck Answer: The function of a column is to transfer the load from beams …

Are load bearing walls bolted down? 
Question: Are load bearing walls required to be bolted down to the foundation wall or concrete slab? Answer: Not necessarily but it depends on …

attach wood beams to concrete 
Question: how does wood beam attach to concrete? Answer: Depending on the height of the wood beam, there are several ways wood beam can be attached …

calculate cost cement patio 
Question: how do i calculate the cost of cement patio? Answer: When planning for a cement patio, here are the things that will affect the cost: …

calculation of width of continuous footing 
Question: What's the procedure for calculating the width of continuous footing? Answer: In order to calculate the footing size for any structure, …

asphalt foundation for sheds 
Question: Can asphalt be used as foundations for a shed? Answer: Hi Jon, The short answer is no, asphalt is not considered a structural material …

monolithic pour backfill 
Question: Do you backfill monolithic pours? Answer: When it comes to concrete monolithic pours, there are two types of backfilling. One is during …

Basement Walkout Addition 
Question i want to build a 16 x 34 room addition from walkout basement,free standing with only a structural posts support on each end & one in the …

preparing the finished dirt elevation for a new concrete slab 
Question: I have my footers and stem walls poured, I am back filling the dirt and packing it as I go. What is the finished elevation of the dirt for …

shed footing 
Question: I am using shed footing det.8 shed footing is 10ft x 12 ft. I will do slab seperatly. using 94 lb portland cement bags w a half sac mixer. …

garage floor level vs concrete driveway 
Question: Should garage floor level with driveway? Answer: Driveways connect the city street to one's home or property. Ideally the driveway should …

Roof trusses diagrams 
Question: What are the details of trusses? Answer: Hi Nathy, Roof trusses are difficult to build at the job site because they require tedious …

Adding on to shed slab  
Question: Is it possible to add 2 inches to the side of a shed slab? I have an existing slab that need to be extended about 2 inches on two sides to …

Can i beam cased in concrete form? 
Question: Can i beam cased in concrete form? Answer: The short answer is yes but you have to make sure there are at least 4 inch thick concrete …

attach wood beam to concrete pier 
Question: How do I attach wooden members to poured concrete piers? Answer: It depends on the function of the wood member. If the wood member …

Concrete wall penetrations or sleeves for plumbing 
Question: I need pipe penetrations for electrical, drainage, and water lines thru my basement concrete walls, how does this works? The pipes need to …

Pour new concrete garage floor over existing concrete pad 
Question: Is it ok to pour new concrete slab over existing concrete pad? I have an existing 20ft x 24ft slab that I would like to turn into floor slab …

How to fix concrete beam 
Question Please see attached picture. This is a beam in a basement of a renovated house. Basically, there was a huge concrete patio that is now an …

Is column footings and pier and post the same thing? 
Question: Is column footings and pier and post the same thing? Answer: Great question. Sometimes footings and foundations can refer to the same …

Raise Aluminum and Steel Awning 
Question I have an aluminum awning with steel 9 steel poles, 35'L x 35'W x 10'H. I need to Raise it by 2 more feet. Can it be done and how is it done? …

Click here to write your own.

Detail for connecting new foundation to existing 
Question: How does new foundation connects to existing? Answer: The detail below is typical connection between new and existing foundation, footing. …

Diamond blockouts, are they necessary?  
Question: What is the purpose for diamond blockout and how do they work on slab and columns? Answer: That's a great question. One of the reasons …

Buried post and footing vs pier 
Question: Is it ok to bury the post with the footings? What does building a pier do? Answer: The most common post materials are wood and steel. …

Monolithic pour 8"x42" trench foundation with 4" slab 
Question: I live in the Chicago area. I'm building a 3 season room addition to my home. I would like to have the room built on top of an 8" concrete …

patio design 
Question: hello , i am wanting to build a paito cover on the rear of my home which is a brick 2 story. will i have to use 4 posts with the two closest …

Do footings installed on wet soil cause future foundation wall problems?  
Question: The excavation for the foundation for our Cornwall Ontario home was dug about a week ago and it has been raining off & on ever since. Though …

Column to column connection 
Question: Can you explain me details about column to column connection? Answer: Hi Azry, Column to column connection is called column splice …

Precast Column and Foundation 
Question: Is there any problem encountered before/during/after precast is being installed? Answer: Hi Fadzil, Without knowing the type of …

function of columns to foundation connection 
Question: what is the function of the elements on connection of columns to foundation base/slabs? Answer: Hi Lisa, The main functions of …

Build a shed foundation after construction 
Question I have a shed which was built on blocks sitting on the ground. It has begun to sink making it impossible to open one of the doors. The …

foundation 
Question: what does it mean when it is said 18" below grade with a 6" stoop? Answer: Hi, Thanks for visiting Without a little more information …

Footing Depth for garage 
Question: I live in North Idaho and believe it is in zone 5. How deep do the footings have to go below grade on an attached garage? If I have 4' stem …

Formula For Calculating a spread footing 
6/2/2011 Question: Hello. I have an 18'-0" wide x 26'-0" High x 3'-0" Wide Pylon to Install. How would I calculate the size of footing I would need …

Monolithic foundation with sloped garage floor 
Question: I want to pour a Monolithic foundation for my garage but I need to understand how to form it based on the need to slope the floor. How do …

new foundation under existing cottage 
5/14/11 Question Is it possible to pour a quality foundation footing in sections to replace a failed cottage foundation? Existing cottage is 18'x32' …

Do I need a footing? 
April 16, 2011 Question Building a 18' by 12' concrete patio, with a cover...will I have to put a footing down? Answer Hi JC, The footing depends …

Anchor Bolts at Mono Pour 
Question HOW ARE THE ANCHOR BOLTS PUT IN A MONO POUR Answer Hi John, that's a great question. You probably talking about anchor bolts at the …

monolithic cement slab 
Question: What is a monolithic cement slab? Answer: The term monolithic is used in concrete construction to define pouring different concrete …

precast concrete connection between column and footing 
Question: How is precast concrete column connected to the footing? Answer: Hi Bill- great question. Given that I'm not sure what type of column …

Click here to write your own.