Landscaping Calculator

Calculate materials for landscaping and garden projects

Enter Area Details

How to Use This Calculator

  1. Measure area length and width in feet
  2. Determine depth needed in inches
  3. Select material type (mulch, topsoil, compost, or rock)
  4. Click Calculate to get cubic yards and tons

Formula

Volume calculation:

Volume (cubic yards) = (Length × Width × Depth/12) / 27

Tips for Accurate Measurements

  • Use landscape fabric under mulch and rock
  • Edge beds for clean lines and to contain materials
  • Water plants after mulching
  • Keep mulch away from plant stems
  • Order 10% extra for irregular shapes

Frequently Asked Questions

How deep should mulch be?

Apply 2-3 inches of mulch for flower beds and around trees. Too much mulch can suffocate plant roots and create pest problems. Keep mulch 3 inches away from plant stems and tree trunks.

How often should I replace mulch?

Refresh mulch annually. Organic mulch decomposes and needs replacement every 1-2 years. Add 1-2 inches each spring to maintain depth and appearance.

What type of mulch is best for landscaping?

Hardwood mulch lasts longest (2-3 years). Pine bark is lighter and better for slopes. Cedar resists insects. Rubber mulch never decomposes but does not enrich soil. Choose based on your needs.

How much topsoil do I need for a lawn?

New lawns need 4-6 inches of quality topsoil. Topdressing existing lawns needs 1/4 to 1/2 inch. For gardens and flower beds, use 6-8 inches of topsoil mixed with compost.

Can I install landscaping materials myself?

Yes, most landscaping materials are DIY-friendly. Topsoil and mulch require spreading and raking. Decorative rock needs landscape fabric underneath. Rent equipment for large projects.

Calculator by Marcus Rivera | Construction Calculator Specialist

Last updated: