BAG COVERAGE IN
SQUARE FEET
5,000 10,000 15,000
LBS/1,000 SQ FT
B
A
G
W
E
I
G
H
T
5 LBS.
1.0
0.5
0.3
10 LBS.
2.0
1.0
0.7
15 LBS.
3.0
1.5
1.0
18 LBS.
3.6
1.8
1.2
20 LBS.
4.0
2.0
1.3
25 LBS.
5.0
2.5
1.7
30 LBS.
6.0
3.0
2.0
35 LBS.
7.0
3.5
2.3
40 LBS.
8.0
4.0
2.7
45 LBS.
9.0
4.5
3.0
50 LBS.
10.0
5.0
3.3
SPREAD WIDTHS FOR DIFFERENT
PARTICLE SIZES
Particle Size
English
Metric
Small/Fine
(Sand)
5-7ft.
1.5-2.1m
Medium
(Half BB)
7-9ft.
2.1-2.7m
Large
(Full BB)
9-12ft.
2.7-3.7m
SPREAD WIDTH FOR DIFFERENT
SIZE GRASS SEED
Seed Size
English
Metric
Fine
5-7ft.
1.5-2.1m
Coarse
7-10ft.
2.1-3.1m
ESTABLISHING A SETTING RATE
Step 1:
Use
Chart 1
to estimate the number of LBS/1,000 square feet of
coverage (Example: 20 LB bag with 10,000 square foot coverage =
2.0 LBS/1,000 square feet)
Step 2:
Find the closest LBS/1,000 square feet in
Chart 2
that you estimated
using
Chart 1
(Example: 2.0 LBS/1,000 square feet = Spreader
Setting of 13)
METRIC RATE SETTING
Determining a Setting Rate
Use chart below to determine the
Setting Rate
based on
Grams/
Square Meter
of coverage as directed on the bag.
All spread widths are determined by the particle size and density.
Below will give approximate spread widths.
GRAMS/SQ
METER
LBS./1,000
SQ FT
SPREADER
SETTING
5 Grams
1.0 LBS.
11
10 Grams
2.0 LBS.
13
15 Grams
3.0 LBS.
14
20 Grams
4.0 LBS.
16
25 Grams
5.0 LBS.
17
30 Grams
6.0 LBS.
18
35 Grams
7.0 LBS.
19
40 Grams
8.0 LBS.
20
45 Grams
9.0 LBS.
22
50 Grams
10.0 LBS.
23
GRAMS/SQ
METER
LBS/1,000 SQ FT
SPREADER
SETTING
10 Grams
2 LBS.
13
15 Grams
3 LBS.
14
20 Grams
4 LBS.
16
25 Grams
5 LBS.
17
The settings furnished on the Rate Setting Matrix are intended as a guide only. Variations in physical characteristics of material applied,
walking speed, and roughness of ground surface may require slightly different spreader settings. Due to the above conditions, EPI
makes no warranty as to the uniformity of coverage actually obtained from the settings listed.
