Gravel Under Deck Blocks
3 4 compact each layer using a vibrating plate or mechanical compactor.
Gravel under deck blocks. A traditional base for a paver or stone patio is a 6 inch deep layer of compacted gravel. Foundation blocks do not block grass and weeds. The cabin will be somewhere between 20x20 and 24x26 with an additional deck that will be the width of the house and probably six feet deep. For that same patio you would need only 24 paver base panels weighing a total of about 30 pounds to replace the 2 1 2 tons of gravel.
Deck blocks can work well but you need to consider a few things. Why should you put gravel under a deck. 3 1 excavate 4 within the deck perimeter. Leaving the area below your deck uncovered can allow weeds and other plants to sprout eventually pushing.
The blocks can even be cut to size with a hand saw. Pea gravel is. Let plastic panels take the place of the gravel base. There are different grades of crushed gravel available with 3 4 to 1 being the best gravel sizes.
What kind of rock goes under deck. Once the base is level fill the open grid with pea gravel. You ll never need to worry about a weak floor with a proper foundation. Fill with 4 of 1 1 4 rock compacted.
They allow water to seep away in the fall eliminating frost related heaving in the winter. Sand or gravel under the blocks works best because these materials don t change with seasonal freeze and thaw cycles. The best antidote to a sagging floor is to have your shed installed on a level gravel pad which will have continuous support under the entire floor. We re thinking of doing a coyote cottage style foundation gravel pits dug beneath the frost line tamped down by hand with what i guess are called deck blocks on top.
Then 4 of 3 4 rock compacted and leveled. 3 3 fill with 0 gravel in 3 layers 4 each. For a typical 10 x 12 foot patio that means carting away about 2 1 2 tons of soil and hauling in the same amount of gravel. But there s an easier way.
3 2 determine the location of the deck base blocks and dig holes 12 deep 24 square in diameter. Excavate holes to 12. The base should be the same dimensions as your shed but can be wider. There is a significant amount of clay in the soil so i am putting gravel under the pier blocks.
Whether you use sheets of plastic or leave uncovered earth below your deck water can pool up providing a.