Steel City 841 AL 1-Gang Flush Floor Box, Aluminum Trim, 15 in³

The 841 AL is a single gang floor box with 15 cubic inches of volume, so it is sized for one device. That is a modest box by floor box standards, which keeps conductor fill tight if you are bringing in more than a feed and a splice. If you need substantially more room for a single gang, the Wiremold 880W1 steel floor box is rated at 53 cubic inches.

It is a flush service box, meaning the cover and trim sit level with the finished floor rather than standing proud of it. That is what you want in walkways, open office floors and anywhere a raised fitting would be a trip hazard or a mop catch. If you need an above-floor pedestal or activation, this is the wrong style.

Yes, it carries UL listing E2969. For a jurisdiction or facility spec that requires listed floor boxes, that file number is what the inspector or submittal reviewer is looking for. It is also made in the United States, which matters on Buy American and federal or municipal work.

Aluminum trim, which is the finish ring you see once the floor is done. Aluminum will not rust, so it tolerates damp mopping and cleaning better than a bare steel ring, and it reads neutral against tile, terrazzo or carpet. The box is sold individually.

Both get used in slabs, and the choice is usually about the pour and the spec. The 841 AL is a metal flush service box with aluminum trim, and metal boxes are what most commercial specs call for when the box also serves as the raceway bond. If your spec allows nonmetallic, the Pass & Seymour TM1542 Series floor box is PVC and is the common choice for on-grade concrete where corrosion is the concern. For a shallow slab or a wood floor with limited depth below, the Wiremold 880M1 OmniBox and the Wiremold 885B are both shallow steel single service boxes.

Order it as Steel City 841 AL. That is the manufacturer part number for the 1-gang flush service floor box with aluminum trim at 15 cubic inches, and it is the number to put on a submittal or a counter order so you do not get the brass or steel trim version instead.

Not necessarily. Both are single gang floor boxes, but the 841 AL is a 15 cubic inch flush service box with its own aluminum trim, while Wiremold's 880 family (880M1 OmniBox, 885B, 880W1) uses its own covers and activations. If you are replacing an existing box in a cut-out slab, the opening size and the cover you intend to reuse decide it, not the gang count. Where you are reusing Wiremold covers, stay in the Wiremold 880 line.

The Steel City 841 AL is a flush service floor box carrying UL E2969 and is made in the United States, with aluminum construction and a 15 cubic inch volume. The comparable metallic choices are the Wiremold 880M1 single-gang shallow steel box, the Wiremold 885B shallow steel single service box, and the Wiremold 880W1 steel 1-gang box at 53 cubic inches. All four are metal-bodied single-gang boxes; the 841 AL is the aluminum one, and the Wiremold units are steel.

Yes. The Steel City 841 AL is an aluminum-trim metallic floor box. The Pass & Seymour TM1542 series floor box is PVC, so it is the non-metallic option when the slab or the installation calls for a plastic body rather than metal. Note that a non-metallic box changes your bonding and grounding approach compared with the metallic 841 AL.

Do not plan on it. The Steel City 841 AL is a 15 cubic inch flush service box supplied with aluminum trim, and the Wiremold 880W1 is a 53 cubic inch steel 1-gang box from the 880W Series with its own cover and fitting system. They are both 1-gang boxes, which makes them look interchangeable, but trim and service covers follow the box series, so order covers against whichever box you install.