
17 23/32” square x 23 5/8” deep solid base chamber with a square 17 23/32” at
sealed cover.
S1-1450 Issue: 11/06/2016 Page: 4 of 4
For reference purposes only. This drawing is not a
specication. Order against product code only. To
enable continuous improvement of our products, the
designs and specications are subject to change
without notice.
© Copyright
TARMACADAM
SETTS
TARMACADAM CONCRETE PEA GRAVEL SAND
CONCRETE
TYPICAL INSTALLATION
ALTERNATIVE INSTALLATION ADVICE
Minimum
8
8
Maximum
14
12
1/4 20
1
Minimum
Maximum
14
12
1/4 20
1
Minimum
8
Maximum
14
FL450 COVER
FL450 FRAME
SOLID BASE
CHAMBER
TARMACADAM
(THICKNESS AS SPECIFIED)
A
SETTS
A
5
6
12
1/4 - 1/2
OUTER EDGE "A" OF FRAME SET 1/4 - 1/2”
ABOVE GENERAL FORECOURT AREA WITH
CONCRETE RAMPED AWAY OVER 12”
"A"
20
VERY IMPORTANT