should you put crushed stone under a garage floor

The Recommended Gravel Base for a Concrete Driveway

The strength and durability of a concrete driveway are not only determined by the type of concrete mix but also by base or sub-base over which it's poured. A layer of gravel placed between the ...

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Sand under slab instead of gravel - GreenBuildingTalk ...

Mar 04, 2013· I'd want to know why the sand is so wet in the first place. If it's just due to weather exposure and would drain/dry if under cover, that's one thing. If it's due to high water table, I might be inclined to build up the slab area with crushed stone (aka "gravel" in …

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Storage Shed Site prep. – Crushed Stone Base : Storage ...

14 Responses to “Storage Shed Site prep. – Crushed Stone Base” ... Please reinterate the size range of the gravel that should be used under the shed. Russell says: March 2, 2013 at 5:31 pm. With the crushed stone base is there any need for runners or will it be ok to just start your floor joists on top of the crushed stone once leveled up ...

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How to Pour a Rock-Solid, Well-Insulated Garage Slab ...

Are you pouring a slab for a regular garage or something a little more heavy-duty, like one reader posted about in the Fine Homebuilding construction forum? Fellow homebuilders offer their advice on how to pour a rock-solid, well-insulated garage slab.

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Long-term Parking - Tires On Plastic Or Wood? - Tires ...

Jul 25, 2017· I was told that when you park for more than a couple days, you ought to put something under the tires. Specifically, that its not good to leave the tires sitting on dirt, grass, asphalt or concrete for weeks or months at a time. We park our RV beside our house, currently just in the grass. As rec...

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Compact Fill Under Slab - Ask the Builder

Compact Fill Under Slab - Concrete bends and breaks. Use self-compacting fill. Water helps compact. ... This gravel is the size of small green peas and it naturally compacts as it's put into a void space. Visit a few local gravel pits in your area to see if they have this small rounded gravel. ... If you have to use crushed stone, be aware that ...

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Gravel Foundation Recommended for the Storage Sheds

Gravel Foundation Recommended for the Storage Sheds. Posted by Alan Bernau Jr on Fri, ... Which stone should I use 3/4" or crusher run? ... are certain circumstances where you would be better off with a concrete pad but most of the time this would be when you're buying a garage for sale to store a vehicle and not a shed for storage of mowers ...

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why is it important to have gravel under a concrete slab ...

Mar 24, 2010· I would suggest using 6" of compacted sand and 4' of concrete. It is necessary to have the original concrete floor broken if not it should be broken to allow any trapped moisture to drain to the sub grade under the original floor. This is especially important if you live in an area where the ground freezes in the winter.

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Are Vapor Retarders Necessary for Basements and Garages?

Jan 29, 2016· Since the typical concrete garage floor sits upon a base of 4-inch-thick (or deeper) base course of gravel or stone, the moisture transmission through the slab is minimal. That slab is not in contact with wet soil, so the amount of vapor transmission is limited. Concrete Basement Floors & …

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How To Build A Gravel Pad - Byler Barns

Nov 24, 2015· Once you order your new shed (or maybe before!), you may wonder whether you should build a gravel pad, set the building on blocks, or maybe place the shed on a concrete pad. Of the 5 most popular shed foundations , most people find a block shed foundation to be an inexpensive yet reliable way to set their storage shed or gazebo.

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Self-Compacting 3/4" stone - JLC-Online Forums

Apr 29, 2003· I have a question about 3/4" crushed stone. I read several places that 3/4" crushed stone is "self-compacting". That is, you dump it in a trech (as in under a concrete footing or floor) and you don't have to compact it with a plate compactor - it is already as "compacted" as it needs to be.

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Better Garage Floors| Concrete Construction Magazine ...

If you’re installing rigid foam under the slab, put the vapor barrier on top of the foam. Don’t place a sand or gravel blotter layer on top of the vapor barrier. There was a time when that practice was recommended to reduce curling in the slab, but if you’re using the proper low-water-content concrete mix, a …

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The 6 Most Popular Shed Foundations – Reviewed - Zacs Garden

The 6 Most Popular Shed Foundations – Reviewed. ... Then pour the gravel or crushed rock in. As you pour the gravel in, you will want to keep pressing it down by stepping on it or using something heavy to apply that downward pressure. ... All you need to do is put some gravel or brickies sand down and level off the area. Then place some ...

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Key to a sound concrete slab is compact fill underneath ...

Aug 07, 2015· I'm in a disagreement with my builder about what's going to happen under my garage slab. ... green peas and it naturally compacts as it's put into a void space. ... If you have to use crushed ...

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How to Fill a Carport Floor to Make It Level | Home Guides ...

When you finish, you should have a level line for the entire carport floor. 5 Add 3/4 inch of crushed gravel to the carport floor so it is even with your string line, using a shovel.

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Ask Your Question - Angie's List Answers

Ask Your Question. Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List.

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Why Put gravel under concrete? - Google Groups

May 06, 2010· Why Put gravel under concrete? Showing 1-28 of 28 messages. Why Put gravel under concrete? ... 5/6/10 12:43 AM: I have poured many small sidewalks and shed floors and never put gravel under the concrete. I want to pour a driveway section in front of the garage and was told by a guy at the concrete company (who came ... like 57 stone, under a ...

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Do you need to put gravel under a concrete pad? | Yahoo ...

May 12, 2008· well, you need to remove any and all black dirt first. Reason for this is because black dirt can compress, and as it does this the concrete will have a void under it, and eventually crack-either from water that gets under and freezes, or just because there's nothing under it to support it.

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Plastic under concrete floor or not??? - Speedwake 2.0

Jan 22, 2006· I dont think you want the surface of your floor to blister and peel away. There's a lot of variables here, and in theory the vapor barriers sound good. But, check into it toroughly. Ive been doing concrete and been around concrete for a long time, and Ive never seen anyone put plastic under a garage slab around here.

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Wrong idea: Small stones under deck? (Lawn & Garden ...

Wrong idea: Small stones under deck? I put some 1" gravels under my deck with plastic underneath it. My original idea was to make sure no water build up around my foundation wall at the back of the house.

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Barn / Shop Floor - Gravel? | AnandTech Forums: Technology ...

Mar 13, 2013· Also, in terms of dust, make sure you get washed stone and it shouldn't be an issue. If you just get crushed limestone it's going to be super dusty. The resulting floor is going to be a bear to clean, something to keep in mind if you intend to have the public using it …

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compacting gravel under a slab - JLC-Online Forums

Dec 07, 2004· You can try to get away without compaction but if it does settle you have a hell of a job to take out the slab of a finished building and replace the slab, hydronic heat, plumbing, floor finishes etc. so it would be a good idea to err on the side of caution and take a couple of hours and do a good job of compacting that gravel.

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Crushed Limestone Driveways: Our Installation Guide

At this point, all of your ducks are in a row and you’re ready to put in an order for the crushed limestone materials that you need for your driveway, as well as any equipment that you plan on renting. Keep in mind that each layer of stone will be poured into the driveway and compacted separately.

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Should vapor barrier in slab be under 4 in. of gravel or ...

May 03, 2011· 2-part question: 1) I'm building a 2-car garage with upstairs apartment in zone 4, 26' x 28'. getting different opinions on whether the vapor barrier -6ml plastic- should be under the 4'' of gravel or on top of the gravel directly under slab? Some are saying it is not good to pour concrete right on plastic, although this seems to be the most common way to do it.

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Deep Fill Under Garage Slab - Masonry - Contractor Talk

Aug 03, 2014· CSBC is crushed stone base course CSTC is crushed stone top course CSBC is actually 1 3/4" minus CSTC is actually 5/8" minus The CSBC is the base of at least 10-12" deep with a 2" CSTC top course. If you use this it will compact almost as hard as concrete. and use a vibratory plate.

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3 Reasons Why It's Important To Use Crushed Stone Under ...

Apr 28, 2014· Here are 3 reasons why a layer of crushed stone is important to the life of your concrete: A Level Surface. Adding crushed stone under your concrete slab will provide a level surface for your foundation. Simply pouring concrete onto the ground will expose it to elemental erosion that will cause cracking and sinking.

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Wrong idea: Small stones under deck? (Lawn & Garden ...

Good idea - as long as the top edge of the plastic is above highest water level and it slopes away from the house, I see no problem with that - I have done it many times using 20-40 mil pond liner under stone or bark or topsoiled bulb and annual planter beds (no penetrating roots like trees or shrubs or tall flower bushes) to keep water away from foundations.

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Floor for your Sheds, Lean to's?????? - MyTractorForum.com ...

May 08, 2012· My sheds and lean to's have dirt floors and I'm just wondering what you guys who haven't cemented the flooring use. I don't see getting any cement work done out there for the foreseeable future and would like to if possible put something down in them.

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Ask the Builder | Concrete slab needs quality self ...

What type of stone would be best for filling a cavity under a planned two-car garage addition? It is approximately 7 feet deep. The local concrete supplier sells recycled concrete for a really ...

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Subgrades & Subbases for Concrete Slabs - The Concrete Network

Everything then should get compacted before you place the concrete, subbase and base. The type of soil determines what needs to happen before placing a slab. There are three basic types of soil and here's what you should know about each: Organic soils, what you might call top soils, are great in your garden, but awful beneath a slab. Organic ...

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Gravel floor in garage - Google Groups

Nov 12, 2008· If you are going to have a non-hard-surfaced garage floor you want a well drained and tiled foundation, with a good coarse granular fill, covered with a good foot of clean crushed stone, which will drain and keep things dry, or crushed stone covered with a thick, well tamped layer of limestone fines. The fines, when compacted damp, become

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Concrete Slab - How to install a slab from start to finish

THE TOOLS YOU NEED TO BUILD A CONCRETE SLAB. I've made a list of the 14 tools you will need to build a concrete slab. The list includes the tools you need to form the slab and the tools to pour the concrete also. CHECK IT OUT HERE. HOW TO FORM A CONCRETE SLAB. 1. Lay out all the boards around the perimeter as straight as possible. 2.

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Crushed Stone Under Concrete: Why It's Needed

When working with concrete slabs, it’s important to take the appropriate steps to ensure that it lasts for many years to come. In order to get the most use out of your concrete slabs, you need to add a layer of crushed stone beneath it first.Placing crushed stone under concrete serves several purposes and can provide the following benefits.

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