TABLE 703.4 STANDARD SIZES OF COARSE AGGREGATES AASHTO M 43
Amounts finer than each laboratory Sieve (square openings), percentage by weight
Product
Name
Nominal Size
Square Openings
100mm
4″
90mm
3 1/2″
75mm
3″
63mm
2 1/2″
50mm
2″
37.5mm
1 1/2″
25mm
1″
19mm
3/4″
12.5mm
1/2″
9.5mm
3/8″
4.75mm
No.4
2.36mm
No.8
1.18mm
No.16
600 µm
No.30
300 µm
No.50
150 µm
No.100
75 µm
No.200
#1 90mm — 37.5mm
3 1/2″ — 1 1/2″
100 90-100 25-60 0-15 0-5
#3 50mm — 25.0mm
2″ — 1″
100 90-100 35-70 0-15 0-5
#4 37.5mm — 19.0mm
1 1/2″ — 3/4″
100 90-100 20-55 0-15 0-5
#467 37.5mm — 4.75mm
1 1/2″ — No.4
100 95-100 35-70 10-30 0-5

This is an excerpt of the official AASHTO Gradations page. The numbers shown are representative of percentages of a sample of stone which will pass through an opening the size of which is defined in the above row.