WSU Compost
Application Recommendation Table for Garden Sites

Recommend only 1/2" deep per year, incorporated and mixed in the Fall.

Plot Size	Square Feet	Yards of Compost Needed		Plot Size	Square Feet	Yards of Compost Needed
10x10	100	0.15		20x20	400	0.61
10x20	200	0.31		20x30	600	0.92
10x30	300	0.46		20x40	800	1.21
10x40	400	0.61		20x50	1000	1.48
10x50	500	0.74		20x60	1200	1.82
10x60	600	0.92		20x70	1400	2.15
10x70	700	1.08		20x80	1600	2.42
10x80	800	1.21		20x90	1800	2.76
10x90	900	1.34

Plot Size	Square Feet	Yards of Compost Needed		Plot Size	Square Feet	Yards of Compost Needed
30x10	300	0.46		40x20	800	1.21
30x20	600	0.92		40x30	1200	1.82
30x30	900	1.34		40x40	1600	2.42
30x40	1200	1.82		40x50	2000	3.03
30x50	1500	2.29		40x60	2400	3.70
30x60	1800	2.76		40x70	2800	4.30
30x70	2100	3.23		40x80	3200	4.91
30x80	2400	3.70		40x90	3600	5.51
30x90	2700	4.10

Plot Size	Square Feet	Yards of Compost Needed		Plot Size	Square Feet	Yards of Compost Needed
50x10	500	0.74		60x20	1200	1.82
50x20	1000	1.48		60x30	1800	2.76
50x30	1500	2.29		60x40	2400	3.70
50x40	2000	3.03		60x50	3000	4.57
50x50	2500	3.83		60x60	3600	5.51
50x60	3000	4.57		60x70	4200	6.45
50x70	3500	5.38		60x80	4800	7.39
50x80	4000	6.12		60x90	5400	8.07
50x90	4500	6.92

Plot Size	Square Feet	Yards of Compost Needed
50x100	5000	7.66
100x100	10000	15.46
100x200	20000	30.92
1/2 acre	21780	33.61
208x208	43560	67.22

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