Shower curbs, jambs and niches in stone

A shower curb, the jambs around the glass and a shampoo niche do not have to be tile. In a stone bathroom they can be cut from the same slab as the vanity top, and the time to plan that is before the shower walls are finished.

What each piece is

A curb is the raised threshold you step over entering a shower. A jamb is the flat return piece at the edge of a shower opening, often where a glass panel gets mounted. A niche is a recessed shelf built into the wall for shampoo and soap. All three can be cut from the same natural or engineered stone as the rest of the bathroom, which keeps the color and pattern continuous from the vanity into the shower.

Why these pieces are measured separately

A curb sees constant water and foot traffic, so it needs to slope slightly to drain and its edges need to be eased so bare feet do not catch a sharp corner. Jambs get measured to the exact opening once the waterproofing and any tile backer are in place, because a stone jamb cut too early will not account for the final wall thickness. A niche is templated to the rough opening left in the wall, with the shelf sloped forward slightly so water runs out rather than pooling.

Sequencing with the shower build

These pieces have to be templated after the shower pan, walls and waterproofing are finished but before tile goes up around them, since the niche and jamb dimensions depend on the finished wall surface. We schedule the template around that hand-off so the stone crew shows up once the opening is ready, rather than guessing at dimensions from a rough drawing.

Material choice for a wet shower

Quartz and porcelain both handle constant water exposure without sealing, which makes them common choices for a curb or niche that sits in standing water and steam every day. Granite and quartzite work too, with a sealer applied at install and reapplied on the sealing schedule for that stone. Marble can be used in a shower, but it etches faster in a wet, humid environment and needs more attentive care, so we talk homeowners through that trade-off before they commit a niche and curb to it.

Seams and small pieces

A niche is small enough to cut from scrap left over from a larger slab in many cases, which can reduce waste on the job. A curb that runs the full width of a shower entry is typically one continuous piece, and a jamb is set with a tight, color-matched seam where it meets the curb or the wall stone, kept as close to invisible as a seam gets.

Slope, drainage and daily use

A curb and a niche shelf both need a slight forward slope built into the fabrication so water runs off toward the shower drain instead of collecting on the stone. That slope is small, a few degrees at most, but it is the difference between a niche that dries out between uses and one that stays damp and shows mineral spots from Houston's moderately hard tap water. We set that pitch into the cut before the piece ever reaches your bathroom, so it is not something adjusted after the fact.

Planning it into your remodel

If a shower is part of your bathroom project, mention the curb, jambs and niche when you book the estimate so we can plan the stone and the sequencing together with your tile and glass installers. Matching them to your vanity top is a straightforward add when it is planned from the start, and a much harder one to retrofit later. Send the estimate form or call us and we will walk through what fits your shower.