# Bales of Straw Needed to Mulch an Irregular Field

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The Bales of Straw Needed to Mulch an Irregular Area calculators computes the number                            AREA COVERED  of regular square-bales of straw or hay needed to cover an area such as a field, garden or planter to a depth adequate to suppress the growth of grass and weeds.   To compute the Bales of Straw Needed to Mulch a Rectangular Area, CLICK HERE.

INSTRUCTIONS: Choose your length units and enter the following:

• (a) The length of side a of your four sided area.
• (b) The length of side b of your four sided area.
• (c) The length of side c of your four sided area.
• (d) The length of side d of your four sided area.
• (D) The length of the diagonal of your four sided area (see diagram).

The Bales of Straw Need to Mulch an Irregular Area calculator will then compute the area in square feet and divide by the number of square feet covered in a single bale of straw.  This will result in the total number of bales needed for ground cover of the area.

## Considerations

Mulching is different than ground cover for planting.  For mulching, one wants to suppress the growth of grass and weeds.  For ground cover, one wants to protect grass seed and young seedlings to encourage grass growth and moisture retention.  The differences is in the depth of the straw laid.  This calculator computes straw deep enough to suppress weed growth.