Do you need a footing for a concrete slab?

six (6) inchesIt is essential that you keep your concrete slab at no more than six (6) inches of thickness..

A 60-pound bag yields . 017 cubic yards, and an 80-pound bag yields . 022 cubic yards. For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags.

Concrete retaining wall footing size The depth to the bottom of the base slab should be kept at a minimum of two feet. However, it should always be below the seasonal frost line, and that often is much deeper in northern climates.

For a 10 x 10 slab, we'd suggest a mix with a capacity of about 4,000 pounds per square inch, or psi. This is basic for residential projects, and it can withstand traffic and support heavy loads.

How many concrete bags would I need for a 8 ft x 8 ft x 6" slab? 54 x 80lb Concrete bags. How much does it cost to pour a 8'x8' x6" slab? Ready-mix costs approx $277.86.

With a brief look, a 16x16 area at 6 inches deep, you would need approximately 6.73 tons or 4.74 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas.

You do not need rebar for any slab if you make it thick enough and space the joints properly. Rebar in jointed pavement is there to counter the cupping effect of thermal expansion. I always recommend the use of rebar or at least rewire. Any concrete slab can crack.

All 3 types of slabs will need a footer and a slab of at least 4″ thick. The footers depth needs to be the depth of the frost line or as per local code, but no less than 12″ deep. ... Slab Foundations Like all foundations, the slab starts with concrete footers poured 24 inches below projected finish grade.

With a brief look, a 20x20 area at 6 inches deep, you would need approximately 10.52 tons or 7.41 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas.

Rebar is recommended for concrete that measures 5-6 inches in depth. The type of and intended use of concrete impacts the need for rebar reinforcement. Rebar must be placed at the center of or slightly above the center of the concrete slab—hence why it should be a certain thickness for best results.

You may need to pour a concrete slab on which you want to build the actual basketball net. The cost of a concrete slab costs about $7 to $8 per square foot. So, a concrete slab for a half basketball court may cost up to $18,800.

45 cubic feet of concrete when mixed with 2.5 quarts of water.

In order to have enough concrete for 1 cubic yard (27 cubic feet), you'll require 2.2 bags of 60-lb concrete.

Since bags are only sold in whole (not half, or quarter) quantities, you'll need to purchase three (3) 60-lb.

bags for one cubic yard..

In general, if you are doing any work which is going to modify your floor plan, then, you do need a permit. If you are going to pour concrete for a patio in your backyard, then, yes, you do need a permit.

Average Cost To Pour Concrete To pour a typical 10x10 concrete slab will cost $670 to $930, a 12x12 slab for a patio will cost $796 to $1,476, a 20x24 driveway slab runs between $1,440 and $3,360, and a 24x24 slab for a garage will cost $3,058 to $5,944.

How many concrete bags would I need for a 5 ft x 5 ft x 6" slab? 20.8 x 80lb Concrete bags.

A hot tub requires a stable surface — whether it's a concrete slab, reinforced deck, or firmly compacted soil with crushed gravel.

There's also the option to have the hot tub installed in the ground but that still requires a concrete vault..

4 inchesHere are our tips for making sure your installation is an uplifting experience.

Some of manufacturers standards for a 2-Post and 4-Post Lifts require a minimum 4 inches of reinforced concrete slab to be safely installed..

Use of OPC 53 grade and PPC ( Portland pozzolana cement) is the best cement for roof dhalai and for all type of RCC structure like footing,slab, beam and column.

Registered User. permanent wood foundations require gravel, not concrete or soil for the footings - every situation is a little different, but all footings need to bear on the soil/gravel/bedrock/ whatever is supporting the structure equally, or it's going to settle at different rates.

A footing is placed below the frost line and then the walls are added on top. The footing is wider than the wall, providing extra support at the base of the foundation. A T-shaped foundation is placed and allowed to cure; second, the walls are constructed; and finally, the slab is poured between the walls.

Your project is 32 square feet at a depth of 4”. Here is the quantity that you will need for your slab. Quikrete Concrete Mix: 24- 60lb bags.

A floating deck that is built close to the ground will not need to have any kind of deck footing. You can use some small concrete blocks where you can lay planks into grooves that are already there, or a post that sets into a pre-formed hole.

You really do not want the patio level with the house threshold, too easy for water to get in to the house. As for the slab, it will not settle if you prepare the subgrade correctly. You need the footers to support the structure, the slab is just there to walk on, and has no structural importance.

Concrete Footings are typically poured in temporary forms constructed from plywood or 2x lumber. Wood stakes and braces hold the forms in position. The top edges of the footing forms must be level, and the concrete footings must be set to the dimensions specified on the plans.

Registered User. permanent wood foundations require gravel, not concrete or soil for the footings - every situation is a little different, but all footings need to bear on the soil/gravel/bedrock/ whatever is supporting the structure equally, or it's going to settle at different rates.

Wire mesh, like Rebar reduced the cracking and any uplift in the concrete driveway. Rebar will be used if there is a structural reason, meaning you need to carry the weight of the slab to pilings or plan to build above the slab. For a driveway, just use the wire, lap it one box around.

For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags. If we add an extra 10%, that's an extra 8 60-pound bags or 6 80-pound bags.

Excavate the slab area to a depth of about 7 inches, allowing 3 inches for a gravel base and 4 inches for concrete.

Really depends on what the slab is used for but in general no you can install wire mesh or use fibered concrete. However you do need something to tie the concrete it just doesn't have to be rebar. You do not need rebar for any slab if you make it thick enough and space the joints properly. ... Any concrete slab can crack.

Enter the size of the slab you want to build in square feet. The calculator will indicate the number of 60 or 80 pound bags of QUIKRETE® Concrete Mix you need to build a 4″ or a 6″ slab. (All yields are approximate and do not include allowance for uneven subgrade, waste, etc.)

6 inchesWall Footing Thickness. For masonry or concrete construction, the minimum foundation wall will be 6 inches. The minimum reinforced concrete footing thickness will be 6 inches or 1-1/2 times the length of the footing projection from the foundation wall, whichever is greater.

Any typical prep work for a slab should be fine. Electrical should be much deeper than any driveway footing. You still have the right to use the surface of the easement. You can pour the concrete over the ground above the lines but if you dig and damage the lines you are liable.

The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab.

For a 4-inch slab, either eight 60-pound or six 80-pound bags are required, while for a 6-inch slab, either 12 60-pound or nine 80-pound bags are necessary..

The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab. For a 4-inch slab, either eight 60-pound or six 80-pound bags are required, while for a 6-inch slab, either 12 60-pound or nine 80-pound bags are necessary.

Here is the quantity that you will need for your slab. Quikrete Concrete Mix: 24- 60lb bags.

Concrete Slab Prices By SizeSlab SizeSquare FeetAverage Cost Installed15x15225$1,38820x20400$2,46824x24576$3,55420x30600$3,7026 more rows

12 inches deepBy code, the bottom of a footing must be at least 12 inches deep and below the local frostline—whichever is deeper—and bear on stable, undisturbed soil that is free of organic matter. And the code requires a minimum compressive strength of 2,500 psi for the concrete.

Remove the loose soil with a shovel or garden spade. Continue to loosen and remove the soil around the outer edge of the footing in stages as you work toward the bottom of the concrete footing. Dig until the entire footing is exposed from ground level to the bottom.

Steps in Removing Concrete Deck Footings Using a spade shovel manually excavate around the footing at least 3/4 the way around and at least 2/3rds of the length of the footing. Dig until you see the footing wiggle a bit. The more you dig the easier the footing will come out.

seven daysIf you use a concrete that has a quick setting additive you need to wait a minimum of one sunny day, if you are using a standard concrete footing mix I would recommend waiting for a minimum of seven days and a maximum of 28 days, of course, that is if the conditions are right for the concrete to cure and set hard .

one dayAllow the concrete to cure for one day before constructing your deck or placing heavy weight on the footing (if standard concrete mix was used, wait about 3 days to begin construction).

One 80-lb bag of concrete yields . 60 cubic feet when combined with 4 quarts of water. If you're purchasing 80-lb bags of concrete, you'll need 1.66 bags of concrete.

You can also use concrete block to build your own piers, but this requires that you pour a concrete footing at the bottom of the hole for the block to rest on. You then have to fill the cores of the concrete block with steel rods and a concrete mix to make them solid.

You do need gravel under a concrete slab, footing, or patio. Gravel provides a solid foundation for your concrete as it can be compacted. It also improves drainage, preventing water from pooling beneath the concrete.

Manufacturers unanimously require vinyl fence posts to be installed into a concrete filled post hole. Setting vinyl posts into concrete provides a consistent footing to ensure the posts will remain inline and true for years to come. Concrete should fill the post hole up to 3-4 inches from the top.

All three types of slabs will need a footer and a slab of at least 4″ thick. The footer's depth needs to be the frost line's depth or as per local code, but no less than 12″ deep.

Do I need a concrete slab for a Tuff Shed storage building? No, in most cases. While garages do require a concrete slab, our exclusive steel joist system has more than adequate strength and moisture resistant qualities to provide a solid foundation for your shed on most ground surfaces.

Yes, you will be required to pull a permit when removing a tree, including dead trees. Do I need to obtain a permit to pour a concrete slab, patio, or driveway? Yes, a site plan will be required with a description of what is being done.

No, in most cases. While garages do require a concrete slab, our exclusive steel joist system has more than adequate strength and moisture resistant qualities to provide a solid foundation for your shed on most ground surfaces. ... Concrete is required for garages and highly recommended for two story buildings.

How do I calculate how much concrete I need for a slab?Measure the area in feet.Multiply length by width, and then by thickness.Divide the resulting number by 27 to find cubic yards.