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Compost sifter being used.
A compost sifter yields nutrient-rich material quickly and easily.

Build a Compost Sifter

Skill Level: Beginner
 
 

Home composters know the many benefits of composting. They also know that not all of the material in the pile decomposes at the same rate. The fine, rich material, which is ready to use, must be separated from the larger pieces which still need to "cook." Separating the material by hand can be a time consuming task. Speed the process dramatically with a homemade compost sifter. All you need are some scrap lumber, a little hardware cloth and some common tools. Lowe's is happy to provide this information as a service to you.

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Tools

Materials

  • Hardware cloth
  • One 8' piece of 1x4
  • One 8' piece of 2x2 - An additional 8' piece will be required if you opt for the long handles.
  • 2" hot-dipped galvanized screws
  • Sandpaper
  • Staples
  • Wood glue
  • Water-base polyurethane
 
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Cut List
Two pieces of 1x4 - 22 1/2" long - for short side pieces
Two pieces of 1x4 - 24 1/2" long - for long side pieces
Four pieces of 2x2 - 22 1/2" long - for frame
Two pieces of 2x2 - 48" long - optional for long handles
Use the right fasteners.
Learn more...

 

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Assemble the Sifter

Half lap joints.
Half-laps provide strength to the corners.

Good Idea. Good Idea:  To avoid splitting the boards, predrill holes for the screws.
Handholds in sifter.
Size the handholds to fit your hands.

Handles being used.
Handles will make your sifting go more quickly, whether you attach them to the sifter or use screws to hold them to the wheel barrow.

1. Cut half-laps in the ends of each of the 22 1/2" 2x2's and assemble them with glue and screws.

2. Cut a 24" x 24" square of hardware cloth. Fold the edges of the hardware cloth over the outside of the 2x2 frame and staple the hardware cloth in place.

3. Secure the 22 1/2" pieces of 1x4 to opposite sides of the 2x2 frame with 2" screws.

4. Use a jig saw to cut out handholds 1/2" down from the top and centered in the long side pieces.

5. Secure the 24 1/2" pieces of 1x4 to the two remaining sides of the frame. Sand all cut edges.

6. Brush on a coat of polyurethane to protect the sifter.

If you opt for long handles, you have two choices:

  • Screw the handles to the bottom of the frame. The handles will easily span the top of a wheelbarrow, so you can sift the compost into the wheelbarrow by sliding the handles back and forth.



  • WoodWorks.Leave the handles loose and mark them at the point where they hang over the sides of the wheel barrow. Partially drive screws into the handles at the marks. When you place the long handles over the wheelbarrow with the screws pointing down, they act as runners on which you can slide the compost sifter, to sift the compost into the wheel barrow.




Idea Good idea:  You can also use your compost sifter to sort bulbs. At the end of the season, carefully remove bulbs and soil from the planting bed into the sifter. Shake gently to locate and separate the bulbs, especially the ones that need dividing.
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These How-To's are provided as a service from Lowe's, the Original Home Improvement Warehouse of How-To information for the World Wide Web. The information in Lowe's "How-To" clinics is intended to simplify jobs around the house. Tools, products, materials, techniques, building codes and local regulations change; therefore, Lowe's assumes no liability for omissions, errors or the outcome of any project. The reader must always exercise reasonable caution, follow current codes and regulations that may apply, and is urged to consult with a licensed professional if in doubt about any procedures. Please read our terms of use.