Wood joist construction, Metal joist construction, Figure 1 – Carlon Round Nonmetallic Floor Box User Manual
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Carlon Strain
Relief
connector &
grommet
Part No.
H978E
Carlon Strain
Relief
connector &
grommet
Part No.
H978E
Cut to height. Flush with
finished floor surface
WOOD JOIST CONSTRUCTION
Figure 1
METAL JOIST CONSTRUCTION
Figure 2
Figure 3
Subfloor
Plug unused
openings in box.
Plug unused
openings in box.
2" x 8"
2" x 8"
2" x 8"
2" x 8"
2" x 6" - cut to fit joist spacing
2" x 6" - cut to fit joist spacing
16"OC
16"OC
Cut to height. Flush with
finished floor surface
Subfloor
Install box on 2"x 6", slide between floor joists,
mark outline of box on bottom of subfloor, mark center -
drill hole thru floor to install box.
Carlon Strain Relief
connector & grommet
Part No. H978E
Plug unused openings in floor box.
ENT
1" screws
1" screws
Romex
Solvent
weld with
ENT cement
For wood construction-
(3)-16d nails each end
For metal construction-
(3)-3" self-drilling
screws each end
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