Bisman 4"x4" Stainless Steel Floor Drain (BMFD244L)
By Maintenance Depot Plumbing Team · Last reviewed
Quick answer
The Bisman BMFD244L is a compact 4"x4" stainless steel floor drain for small bathrooms, laundry corners and balconies. It resists rust and suits most standard showers.

Not every space needs a large drain. The Bisman 4"x4" stainless steel floor drain (BMFD244L) is a compact option for bathrooms, small showers and utility corners.
Specs at a glance
| Spec | Detail |
|---|---|
| Product | Floor drain |
| Brand / model | Bisman BMFD244L |
| Size | 4" x 4" |
| Material | Stainless steel |
| Best for | Small bathrooms, laundry corners, balconies |
Why stainless steel?
- Resists rust and staining
- Holds up well to daily cleaning
- Has a clean, modern look that suits most tiles
Where a 4"x4" drain works best
- Small bathrooms and powder rooms
- Laundry corners and sink areas
- Balconies and small patios
- Secondary drains in larger wet rooms
Installation tips
- Check the drain matches your outlet pipe size.
- Set the drain at the lowest point of the floor.
- Make sure there's a trap below to block odours.
- Finish the tile slightly above the grate so water runs in.
Choosing between 4" and larger drains
A 4"x4" drain is fine for most standard showers and floor areas. For high-flow showers or larger floors, consider a 5-3/4" square drain or a linear drain.
Keep it clean
Lift the grate and rinse it regularly, especially in showers where hair builds up.
Maintenance Depot carries a full range of floor drains, so ask our team if you need help choosing.
Frequently asked questions
Is a 4" drain big enough for a shower?
For most standard showers, yes. For high-flow or large showers, choose a larger or linear drain.
Does stainless steel rust?
Stainless steel resists rust well, though harsh chemicals left on the surface can mark it.
Do I need a trap under the drain?
Yes, a trap blocks sewer gas and odours.
Buy Bisman Stainless Steel Floor Drain 4"x4" at Maintenance Depot