Rough-in boxes are available for all FMCA & TC Series Floor Boxes to ensure hassle-free compatibility.
Required for concrete, masonry, and conduit system applications*
Pre-punched and tapped mounting holes provide easy floor box installation
Concentric / Combo knockouts available on all sides for maximum conduit termination flexibility
Alignment labels assist in proper installation during rough-in
Heavy gauge cold rolled steel construction
Urethane coating provides superior corrosion resistance than galvanized
Conforms to NEMA® standards
UL Listed
*While site conditions may make them optional, rough-in boxes are also recommended for raised wooden floor or hollow wall construction. For details, see the appropriate TechNote Installation Instructions or call us for application assistance.
Includes: 1ea BB* Rough-In box indicated. Compatible AV floor box assembly also available.
BB1000 | Rough-in Box for FMCA1000 Series Floor Box – 6” x 6” x 6”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 6”L x 6”W x 6”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 12 each combination knock outs (1/2 to 1” trade size) spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent FMCA1000 series floor box installation. The cover mounting flange shall have 4 holes to accommodate mounting of any FMCA1000 series floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BB1000.
BB2000 | Rough-in Box for FMCA2000 Series Floor Box – 12.5”x6”x4”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 12.5”L x 6”W x 4”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 16 each combination knock outs (1/2 to 1-1/4” trade size) spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent FMCA2000 series floor box installation. The cover mounting flange shall have 4 holes to accommodate mounting of any FMCA2000 series floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BB2000.
BB2000D | Rough-in Box for FMCA2000 Series Floor Box – 12.5”x6”x6”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 12.5”L x 6”W x 6”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 16 each combination knock outs (1/2 to 1-1/4” trade size) spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent FMCA2000 series floor box installation. The cover mounting flange shall have 4 holes to accommodate mounting of any FMCA2000 series floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BB2000D.
BB3000 | Rough-in Box for FMCA3000 Series Floor Box – 12.5”x12”x4”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 12.5”L x 12”W x 4”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 20 each combination knock outs (1/2 to 1-1/4” trade size), spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent FMCA3000 series floor box installation. The cover mounting flange shall have 4 holes to accommodate mounting of any FMCA3000 series floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BB3000.
BB3000D | Rough-in Box for FMCA3000 Series Floor Box – 12.5”x12”x6”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 12.5”L x 12”W x 6”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 20 each combination knock outs (1/2 to 1-1/4” trade size), spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent FMCA3000 series floor box installation. The cover mounting flange shall have 4 holes to accommodate mounting of any FMCA3000 series floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BB3000D.
BBTC1 | Rough-in Box for TC10 Floor Box – 6”x4”x4”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 6”L x 4”W x 4”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 10 each combination knock outs (1/2” to 1” trade size) spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent TC10 floor box installation. The cover mounting flange shall have 4 holes tapped for 8/32 screws to accommodate mounting of Mystery Electronics TC10 floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BBTC1.
BBTC2 | Rough-in Box for TC20 Floor Box – 10.5”x4”x4”
Rough-in box shall be heavy gauge cold rolled steel, shall measure 10.5”L x 4”W x 4”D nominal dimension, shall be UL Listed and conform to N.E.M.A. standards. Rough-in box shall have 10 each combination knock outs (1/2” to 1” trade size) spaced uniformly on the sides and ends. Rough-in box shall have screw attached, disposable heavy gauge metal cover to protect rough-in box during rough-in, w/ factory applied label to aid alignment/positioning of subsequent TC20 floor box installation. The cover mounting flange shall have 4 holes tapped for 8/32 screws to accommodate mounting of Mystery Electronics TC20 floor box. Rough-in box shall be coated overall with gray urethane. Rough-in box shall be Mystery Electronics BBTC2.
