
532-SMB
Lew Electric 532-SMB Stamped Steel Round Deep Floor Box
Pairs well with
The Lew Electric 532-SMB is a round cast iron concrete floor box with a brass top. The box is fully adjustable and offers 2 1/8" of pre-pour adjustment, and 1/2" of adjustability after it is installed. The box is deep offering 4 1/8" of height for installation, and 57 cubic inches of interior space. There are four 3/4" knockouts, 5 1/2" knockouts, and 2 1" knockouts on the sides of the box to run your wires to. The box ships with a protective cement cap to keep the box clean and safe during concrete pouring. The box does not ship with a cover, there are several options available that are sold separately. If the box is to be used in a carpeted area a sold separately carpet flange can be ordered, the SCF-1 carpet flange adds 3/8" of height to accommodate the carpet and padding. For tile applications no flange is needed, simply pour your concrete to the level of the tile frame less the thickness of the tile. The box is UL listed for the USA, and cUL listed for Canada installations.
Specifications:
- Top: Brass
- Requires cover, sold separately
- Size: Single gang
- For concrete installations
- Offers 1/2" of adjustability post installation
- 57 cubic inches of interior space
- Several different sized knockouts
- UL and cUL listed, # 514A, 489H
- Includes construction cap
- Box dimensions: 4 5/8" round
- Depth: 4 1/8" deep
- Can be used with carpet or tile
- Warranty: 1 year
Lew Electric 532-SB-SMB Drawing (PDF)
Lew Electric 532-SB-SMB Installation Instructions (PDF)

Lew Electric 532-SMB Stamped Steel Round Deep Floor Box
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Shipping Information
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Returns & Exchanges
Non-defective items may be returned within 30 days with a 30% restocking fee. Shipping costs are non-refundable, and return shipping is the customer’s responsibility. See our full Return Policy.
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Cancellations
Orders can be canceled before shipment; if already shipped, standard return fees apply. Learn more about Cancellations.
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Damaged Shipments & Shortages
Report any shortages, damages, or incorrect items within 5 business days of delivery. For assistance, visit our Claims Policy.
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