How to Make a Soil Sifter Box for Healthy Compost

With only a few materials from the hardware store, you can build a sifter for soil and compost. Fight rocks and clay in your soil with this DIY project.

Sifting soil and compost is one aspect of gardening that can sometimes be challenging—but always pays off. This small sifter box makes it easy to shake out and keep the good stuff and return the leftovers to your compost pile. And it's the perfect size for one person to handle by themselves in a modest garden.

There are plenty of benefits to composting, such as enriching the soil we use for gardening. You also can reduce up to 30 percent of the things you normally throw in the trash by composting food scraps and yard waste instead. When composting at home, it’s important to sift your compost to separate the organic material that’s suitable for gardening and the stuff that still needs some time to decompose. The good stuff, called humus, is dark, fluffy, and rich in nitrogen and other things that plants thrive on. Depending on what organic materials you add to your compost pile, how much, and climate factors like heat and humidity, it can take up to a year for humus to develop. The good news is, once you’ve started the cycle and continue adding materials to your compost, you’ll be reaping that sweet, sweet humus for years to come.

  • Working Time 30 Minutes
  • Start to Finish 30 Minutes
  • Difficulty         Projects Kind of Easy

What you need

Tools

  • Tape Measure
  • Chop saw
  • Power drill
  • Countersink bit
  • Carpenter’s square
  • Sandpaper
  • Tin snips

Materials

  • 1-inch x 6-inch x 8-foot cedar board (x1)
  • 1/2-inch square wire fencing, sometimes called hardware cloth, 24 x 18 inches (x1)
  • 2-1/2-inch deck screws (x1)
  • 1-1/4-inch exterior cabinet screws (x1)
  • 1/8-inch fender washers (x1)
  • Handles (x2)

Cuts

  • Frame length (x2)
    1 x 6 x 24 inches
  • Frame width (x2)
    1 x 6 x 16 inches

How to do it

Step 1 Build the Frame

On a work surface, line up the long boards (the frame length) parallel to each other, then square up the short boards (the frame width) perpendicular in between them to form the frame. Predrill the screw holes, then drill three 2-1/2-inch deck screws from the outside of the long boards into the ends of the shorter boards to fasten, making sure all corners are square. Sand down any rough edges.

Step 2 Attach the Fencing

Line up the fencing along the edge of the sifter frame. Predrilling all screw holes, drill a screw through a washer and the fencing to attach the fencing to one corner of the frame. Repeat with remaining 3 corners, making sure to keep the fencing taught. Then drill a screw and washer in every 4 to 6 inches along the edges of the frame to secure the fencing. Use tin snips to trim any excess fencing.

Step 3 Attach the Handles

Use cabinet screws to attach the handles to the sifter in the middle of each of the long sides.

RectangleCreated with Sketch. Rectangle Copy 3Created with Sketch.

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