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Mulch Bed Calculator · Free calculator

24x24 Mulch Bed Calculator

Mulching a 24' × 24' bed (576 sq ft) 3" deep takes 5.60 cubic yards — 76 bags of 2 cu ft mulch with 5% extra. Here's 2", 3" and 4" depth, bag vs bulk cost and the fabric and edging for 24x24.

Quick answer

3" deep (standard)
5.60 yd³
2 cu ft bags @ 3"
76
2 cu ft bags @ 2"
51
Bags cost @ 3"
$304
Bulk cost @ 3"
$230
Edging
96 LF

▍Mulch Calculator

Material
ft
in
ft
in
in
Waste Factor
$
L = 24' 0"W = 24' 0"D = 3"
Cubic Yards
5.60yd³
incl. 5% waste · Bulk delivery: order 5.75 yd³
Cubic Feet
151.20ft³
Area
576.0sq ft
Weight
1.68tons
Weight
3,360lbs
Mulch bags needed
  • 2 cu ft bag (2 ft³ yield)76

Mulch for a 24x24 bed by depth

576 sq ft, 5% extra. Bags ~$4.00 (2 cu ft), bulk ~$40/yd³.

DepthUseCubic yards2 cu ft bagsBags $Bulk $Weight
2"Refresh existing bed3.73 yd³51$204$1502,240 lbs
3"Standard (weed control)5.60 yd³76$304$2303,360 lbs
4"New bed / heavy weeds7.47 yd³101$404$3004,480 lbs

Bed prep for 24x24

ItemQuantityNotes
Landscape fabric (3' × 50' rolls)5634 sq ft incl. 10% overlap
Bed edging (20' sections)596 LF perimeter
Fabric staples64~1 per 9 sq ft
Pickup loads (≈2.5 yd³)3bulk mulch @ 3"

How the math works

  1. Area: 24 ft × 24 ft = 576 sq ft
  2. Volume @ 3": 576 × (3 ÷ 12) = 144.00 cu ft
  3. Add 5%: 144.00 × 1.05 = 151.20 cu ft
  4. Cubic yards: 151.20 ÷ 27 = 5.60 yd³
  5. Bags: 151.20 ÷ 2 cu ft = 76 bags

Trade pro tips

  • 5.60 yd³ at 3" — bulk delivery will be cheaper than bags.
  • Keep mulch 2"–3" away from trunks and siding — no "mulch volcanoes".
  • Refreshing an existing bed usually only needs 1"–2" on top.
  • One cubic yard of bulk mulch = 13.5 two-cu-ft bags.
  • A half-ton pickup carries 2–3 yd³ of mulch; a full-size bed with sides can take about 3.

Frequently asked questions

How many bags of mulch do I need for a 24x24 area?

At 3" deep, 76 bags of 2 cu ft mulch. At 2": 51 bags. At 4": 101 bags. All include 5% extra for 576 sq ft.

How many yards of mulch for 24x24?

2": 3.73 yd³; 3": 5.60 yd³; 4": 7.47 yd³. Bulk mulch is sold by the cubic yard; 1 yd³ = 13.5 bags of 2 cu ft.

How much does it cost to mulch a 24x24 bed?

At 3": about $304 in bags or $230 in bulk before delivery. Bulk is usually cheaper at this size.

How much does the mulch for 24x24 weigh?

About 3,360 lbs at 3" (mulch runs 400–800 lbs per yd³ depending on moisture). That's 2.2 half-ton pickup loads of bulk mulch.