Quote:
Originally Posted by MBAtarga
^ 12 inch thick slab???? This isn't going to be used for a crane support pad.
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What that does is twofold. One it has enough mass to essentially struggle off any frost heave issues. It’s essentially a big rock sitting on the ground and nothing much is going to happen to it. Secondly, it gives enough elevation to keep the wooden part of the structure a good distance above ground level to prevent any problems from water intrusion. Recall that he mentioned the possibility of water runoff at the site. It also allows the bottom of the slab to be placed below the typical level of any organic matter on his lawn.
The cost difference between a 12 inch thick slab of that size and a typical 6 inch slab is about 200 bucks.
If he really wanted to save a buck, he’d buy a pre-manufactured shed and stick it in his yard on four concrete blocks and call it a day.