Get matched with top mulch and topsoil pros in Needles, CA

There should be a 1-inch thick layer of sand underneath your pavers in order to provide a proper base.

Yes, gravel comes in different sizes, from fine powder to pea-, coin-, and even golf ball-size. Pea gravel is about 3/8 inch, while crushed stone gravel is about 3/8 to 4 inches. Most companies use a numerical system to assign a size, with the smallest being #10 and the biggest being #1. 

The best mulches for trees are wood chips, bark nuggets, or pine straw. Depending on your goals, you may want to avoid using plastic, stone, rubber, or wet grass clippings. Plastic mulch prevents water from reaching the mulched areas of your tree, stones don’t offer any nutritional benefits to the soil, rubber can release byproducts into the soil when it decomposes, and wet grass clippings can lead to rot. 

Plastic may prove beneficial in cold climates in the winter, but wood chips are the ideal option for most environments.

The ideal amount of mulch is the square footage of your desired depth in inches divided by 324. Aim to keep your old and/or new mulch at a depth of no more than three or four inches.