Soil, Stone, Mulch, Compost, & Amendments

{% comment %} ──────────────────────────────────────────────────────── Mandy’s “How Much Do I Need?” Bulk-Material Calculator Paste into a custom-HTML block or convert to its own section. Produces cubic-yard results and rounds up to the nearest 0.25 yd³ so it matches the ¼-yard increments you sell in POS. All JS is inline to keep it single-file. ──────────────────────────────────────────────────────── {% endcomment %}