Best answer
Preparing the ground As a rule of thumb, concrete slabs supporting lighter weights such as paths, patios and shed bases will need to be 75-100mm thick, while driveways and garages need to be at least 100mm thick. Slabs intended for commercial use should be at least 175mm thick and reinforced.
How thick should my concrete slab be?
4 inchesStandard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.
Can I use plaster to fill holes?
How to repair cracks and holes in plaster. You can fill a deep crack with screwed-up newspaper, which makes a good base for the filler. For larger holes, you might need to build up several thin coats of filler rather than one thick one, making sure to let each coat dry before adding the next.
How deep should a sub base be for a concrete slab?
100mmSub-grade. The surface needs to be dug off to a depth of at least 100mm, or whatever depth is required for the proposed concrete slab. Remove all weeds and other unwanted organic matter. Excavate any soft spots and fill with compacted sub-base material.
How thick should cement board be under tile floor?
Floors: A 1/4-inch minimum thickness is needed, but thicker panels are also fine. Walls: Use 1/2-inch or 5/8-inch-thick cement board, not 1/4-inch. The extra thickness is needed to span the studs and provide a solid base for the tile.
How deep should concrete piers be?
The minimum thickness for a pier is 8 inches. The minimum thickness for pier footings is 8 inches or 1-1/2 times the length of the footing projection from the pier, whichever is greater.
How thick should concrete footings be?
Footing thickness - 8 to 12 inches. Footing depth - varies based on frost line and soil strength (some footings can be shallow, while other must be deep)
How deep should a concrete base be for a log cabin?
100mmConcrete.
A base of concrete can be done in a number of ways.
Generally it can be done with simple timber shuttering.
The average base will be about 80 – 100mm deep..
How deep should a concrete footing be for a retaining wall?
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.
How deep should a concrete fence post be in the ground?
Concrete fence posts must be fixed into the ground in the traditional way: by digging a hole. When concreting fence posts into the ground, the posts should be buried a minimum of 600mm deep. The recommended depth for a 1.80m or 6 foot high fence is 760mm or 2' 6".
How much concrete do I need for a metal fence post?
Each hole for the terminal posts must be 8 inches in diameter and 30 inches deep, requiring 0.85 cubic feet of concrete to fill.
Related Question Answers

Yuchen
ProfessorHow clean should concrete be before epoxy?
Before Applying Epoxy It is essential that you clean your floor thoroughly. If you're working on a concrete base, fill in any cracks or patch areas that need care before you start to clean. Once the damages, if any, have been repaired, it's time to clean.

idz
ProfessorHow thick of a concrete slab for a hot tub?
about 4 inchesConcrete Slab The base of reinforced concrete should be about 4 inches thick and be able to withstand a weight of at least 115 pounds per square foot, especially for larger spas. The concrete should be fully cured prior to placing the tub.

Matt Ward
ProfessorWhat thickness cement board should I use?
Half-inch cement backer board is ideal for most tiling jobs, including walls, floors, countertops, and ceilings.
For flooring, the backer board should be installed over a 5/8-inch thick OSB or plywood base..

Alex Hartford
ProfessorHow thick should a concrete pool be?
between three and four inchesGenerally, the pool walls need to be between three and four inches thick. Smooth the pool walls with your trowel, as you did for the base. Now the concrete has to cure properly before you can fill it with water. The concrete curing process allows the concrete to reach maximum strength and takes approximately 28 days.

Danield
ProfessorWhat kind of wood should I use for a concrete base?
Using 150mm x 25mm sawn and treated timber, cut the four sides of the formwork for your base. This timber should be 300mm longer than your base and 300mm wider. Lay the timber out where you want the base and using a heavy "lump" hammer bang in some 50mm x 50mm posts along the line of the timber.

skiwi
ProfessionalWill concrete rot a treated post?
Simply setting the posts in concrete does create a condition that will accelerate rot in the bottom of the posts. With pressure-treated posts, the rot will be slow. ... The concrete at the top should be sloped away from the post to grade level to avoid water pooling around the base.

Ignacio Vazquez-Abrams
ProfessionalWill concrete rot fence posts?
A: Actually, your point is well taken. Simply setting the posts in concrete does create a condition that will accelerate rot in the bottom of the posts. With pressure-treated posts, the rot will be slow. ... The concrete at the top should be sloped away from the post to grade level to avoid water pooling around the base.

Matias Quaranta
ProfessionalHow thick should a concrete slab be for a shop?
Five to six inchesFive to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks.
To prepare the base, cut the ground level to the proper depth to allow for the slab thickness..

Andy White
ProfessionalHow much concrete is needed for a fence post?
To calculate how much concrete you need, you need to know the post size you are going to use and how many posts you are installing.
Your post diameter and height determine how big each hole needs to be.
As stated above, fence post holes should be 3 times the diameter of your post and 1⁄3 as deep as your post..

Ben
ProfessionalHow deep do concrete fence posts need to be?
600mmConcrete fence posts must be fixed into the ground in the traditional way: by digging a hole. When concreting fence posts into the ground, the posts should be buried a minimum of 600mm deep. The recommended depth for a 1.80m or 6 foot high fence is 760mm or 2' 6".

Stephen Wrighton
UserCan I paint concrete planters?
Painting concrete is easily done. The concrete needs to be properly prepped in order to have a smooth finish. Outdoor concrete works best with an epoxy enamel paint, while indoor concrete is best with a latex paint. Both concretes should have a base coat of concrete primer for best results.

prasad_
UserHow long should concrete screws be?
The proper length could be either the 2-3/4" or the 3-1/4" length concrete screw. The 3-1/4" screw would be right at maximum embedment and depending on the abrasiveness of the base material, may be too long.

erluxman
UserHow thick does a concrete base need to be for a log cabin?
100mmIn most cases a 100mm thick concrete slab is an ideal base for your log cabin providing the ground is reasonably level and firm.

Alok Raj
UserHow thick should a concrete Forklift be?
A solid base with good concrete at 4” should support an average forklift.

herohuyongtao
UserHow thick should concrete be to hoist?
100mmYour hoist has specific requirements to secure safely to a concrete base. Make sure your concrete is thick enough to support your hoist, minimum thickness is 100mm. Also, ensure your concrete is in good condition with no major cracks.

Ali
GuestIs drilling into concrete bad?
If by “drilling through” you mean drilling a hole that is as deep as the reinforced concrete beam or column itself, then it is not acceptable. It should not be attempted even if it is a very small diameter hole. Think about it as drilling a 10–12 mm (1/2″) diameter hole through your body, it is not a good idea.

Stretch0
GuestHow do you repair uneven concrete slabs?
For deep repairs, Top 'N Bond can be used in multiple lifts of up to 1/2 inch at a time. Sakrete Multi-Purpose Sand or backer rod can also be used to fill deep voids. Using a garden hose, remove any dirt or debris from the crack. For more severely damaged concrete, a pressure washer may be needed.

Diego Puente
GuestHow thick should a concrete drive be?
For a standard driveway your sub-base should be at least 100mm deep (the same depth as the concrete), rising to 150mm if you plan to park larger vehicles on it. The hardcore sub-base needs to be in place and compacted before any ready-mix concrete arrives.

neohope
GuestWhat is the best base for concrete driveway?
gravel baseThe gravel base for a driveway should be a minimum of 4 inches deep. If heavier vehicles, such as large trucks, will use the driveway regularly, the gravel should be even deeper, up to 12 inches. Poor soil or a sloped driveway may also require deeper gravel.

Bhavya Parikh
GuestHow deep should a concrete fence post be?
600mmConcrete fence posts must be fixed into the ground in the traditional way: by digging a hole.
When concreting fence posts into the ground, the posts should be buried a minimum of 600mm deep.
The recommended depth for a 1.80m or 6 foot high fence is 760mm or 2' 6"..

Ajax1234
GuestShould you caulk concrete saw cuts?
Control joints or saw cuts should be addressed the same as above. The control joint can be filled with backer rod or even sand. Filling the saw cut is mandatory as control joints are 1/4 the thickness of the concrete. On a 4″ slab, that is a 1″ deep saw cut and nobody want to use that much caulking.

leaf_yakitori
GuestDoes aggregate concrete crack?
there is no concretor that will guarantee against cracking, as long as all efforts and correct installation practices are done, concrete can and does crack. The saw cut control joint should be around 25mm deep in 100mm of concrete (assuming they used 50/65 reo chairs) and installed in the correct stress points.

casademora
GuestHow thick should concrete be for heavy equipment?
6 inchesIf they will be subject to occasional use by garbage trucks, RVs or other heavy vehicles, the recommended thickness may be 6 inches or more. Parking Lots: Most parking lots will need concrete pavement that is at least 6 inches deep. If heavyweight trucks will also be allowed, the thickness must be increased.

Nikita
GuestHow much concrete do I need for a post hole?
To calculate how much concrete you need, you need to know the post size you are going to use and how many posts you are installing. Your post diameter and height determine how big each hole needs to be. As stated above, fence post holes should be 3 times the diameter of your post and 1⁄3 as deep as your post.

Kousha
GuestWhat is a good base for a concrete slab?
The base course material, according to ACI 302, "Concrete Floor and Slab Construction," should be "compactible, easy to trim, granular fill that will remain stable and support construction traffic." ACI 302 recommends material with 10 to 30% fines (passing the No. 100 sieve) with no clay, silt, or organic materials.

MrYoshiji
GuestHow much concrete do I need for fence posts?
To calculate how much concrete you need, you need to know the post size you are going to use and how many posts you are installing. Your post diameter and height determine how big each hole needs to be. As stated above, fence post holes should be 3 times the diameter of your post and 1⁄3 as deep as your post.

CallMeStag
GuestHow thick should concrete base be for oil tank?
Where concrete slabs are used, they should be at least 42mm* (recommended 50mm) thick.
The base should extend at least 300mm beyond the widest points of the oil tank and fully support the base of the oil tank in its entirety..

misha130
GuestShould I seal concrete expansion joints?
Expansion joints must be sealed with a flexible sealant, like QUIKRETE® Self-Leveling Polyurethane Sealant or QUIKRETE® Non-Sag Polyurethane Sealant…or an expansion joint strip, to prevent water from penetrating the joint and deteriorating the sub-base.

Karel Debedts
GuestHow many inches deep should a concrete patio be?
8 inches deepIf you install a concrete patio, dig out a space 8 inches deep; 4 inches for the some, another 4 inches for the concrete, and another 2 inches to allow for mortar and brick.

tscizzle
GuestWhat is the best base for a concrete slab?
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Esailija
GuestWhat is the best base for concrete slab?
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Ian Nelson
GuestHow thick should cement board be for shower walls?
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Davor Lucic
GuestHow thick should concrete overlay be?
25 to 50 mmThe minimum recommended thickness is 1 to 2 in. (25 to 50 mm) for a fully bonded concrete overlay placed on a base slab that is practically free of cracks and in which the concrete is sound, clean, and of good quality.

Eli Courtwright
GuestHow deep do concrete anchors need to be?
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Muhammad Numan
GuestHow deep do concrete piers need to be?
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gniourf_gniourf
GuestHow deep should concrete anchors go?
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shizhen
GuestHow deep should footings be for a concrete block wall?
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David Segonds
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Rory McCrossan
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Quentin
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some
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Somesh Kumar
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Zadahyac
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Ali
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Todd
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Francisco Mateo
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Andrea Tulimiero
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BCS
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Grzegorz Skibinski
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Maxime Lorant
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