WELCOME TO SMITH CONCRETE
Concrete Rings & Coverslabs
MANHOLE RINGS
NOMINAL DIAMETER
mm
AVAILABLE DEPTH OF RINGS mm AVAILABLE AS SOAKAWAY APPROX. RINGWALL THICKNESS
mm
TONNES PER METER DEPTH
300 450 500 600 750 900 1000
675 Y Y N Y N Y N N 70 0.45
900 Y Y N Y N Y N Y 80 0.66
1050 Y Y N Y N Y N Y 90 0.77
1200 Y Y N Y N Y N Y 90 0.88
1350 Y Y N Y N Y N Y 95 1.21
1500 N N Y N Y N Y Y 105 1.27
1800 N N Y N Y N Y Y 115 1.65
2100 N N Y N Y N Y N 150 2.54
2400 N N Y N Y N Y N 150 2.88
2700 N N Y N Y N Y N 150 3.22
3000 N N Y N Y N Y N 165 4.20
3500 N N N N Y N Y N 185 5.30
4000 N N N N N N Y N 200 6.36
 
Y = Stock Item     N = Not Available


MANHOLE - COVERSLABS
DIAMETER
mm
DEPTH OF COVERSLAB
mm
OVERALL DIAMETER OF COVERSLAB
mm
STANDARD ACCESS SIZES mm APPROX. WEIGHT FOR UNIT tonnes
675x675 Access
300 450 500 600 750
675 140 960 C C N N N 0.13
900 150 1160 E C N N N 0.16
1050 150 1240 E C N C N 0.28
1200 150 1400 E C E C N 0.40
1350 150 1570 E E E T/O C 0.54
1500 180 1770 E E E T/O C 0.90
1800 180 2100 E E E T/O C 1.43
2100 190 2500 E E E T/O C 2.18
2400 190 2760 E E E T/O C 2.60
2700 240 2980 E E E T/O C 4.00
3000 240 3300 E E E T/O C 4.70
3500 275 3850 T/O T/O T/O T/O T/O 7.40
4000 275 4500 T/O T/O T/O T/O T/O 10.50
 
Y = Stock Item     N = Not Available     C = Central Opening     E = Eccentric Opening     T/O = Made To Order

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