GLOSSARY

Bathroom Remodeling, in Plain English.

Curbless. Frameless. GPG. Schluter. Anti-scald. Mud bed. The terms your contractor uses, defined honestly — and how each one applies in Sacramento County.

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A

Anti-scald valve: A pressure-balancing or thermostatic valve that prevents the shower temperature from spiking when someone flushes a toilet or starts the dishwasher. Required by California plumbing code on all new shower installs. We default to thermostatic on Signature and Estate tier projects because Sacramento's afternoon water-pressure dips are real.
Aging-in-place: Design choices that let a homeowner stay in their home as mobility changes — curbless shower entries, integrated benches, comfort-height toilets, lever-handle faucets, anti-scald valves, properly-anchored grab bars. Sun City Lincoln and Lincoln Hills demand has rewritten what a modern Sacramento bathroom looks like.

B

Backerboard: Cement-based panel installed behind tile in wet areas. Replaces moisture-vulnerable drywall. We use HardieBacker, Wedi, or Schluter Kerdi-Board depending on the waterproofing system.

C

Cartridge (valve): The replaceable inner mechanism of a shower or faucet valve. Cartridges are the most common point of failure in hard water. Sacramento's 6–14 GPG hardness shortens cartridge life on entry-level valves; mid- and upper-tier brands (Kohler, Delta, Hansgrohe) hold up dramatically better.
Curbless shower: A shower with no raised threshold (curb) at the entry — water is contained by slope and a recessed drain instead. Requires cutting the slab on slab-on-grade homes (most Sacramento, Folsom, Elk Grove post-1985 construction), or furring down joists on raised-foundation homes (East Sac, Land Park, Curtis Park). Adds about $2,200 over a low-curb install.
Comfort-height toilet: A toilet bowl that sits about 17–19 inches off the floor, instead of the traditional 14–15 inches. Also called "chair-height" or "ADA-height." Easier to sit on and stand up from. Standard on aging-in-place projects, increasingly the default on new installs.

D

Demolition (demo): The first phase of construction — removing old tile, fixtures, vanity, tub or shower, drywall, and sometimes the subfloor. Typically 2–3 days for a hall bath, 3–5 days for a master. We protect the path from front door to bathroom, set up plastic dust barriers floor-to-ceiling, and run a HEPA vacuum.
DWV (drain, waste, vent): The plumbing system that carries water out of fixtures and vents sewer gases through the roof. Older Sacramento homes (pre-1980 East Sac, Land Park, Curtis Park) often have undersized DWV venting that we have to upgrade to current code during a remodel.

F

Fab 40s: A historic Sacramento neighborhood within East Sacramento, named for the 40th-block streets (40th, 41st, 42nd, 43rd, 44th, 45th, 46th). Pre-WWII custom homes with mature trees, plaster walls, original cast-iron tubs, and zero straight angles. Some of the most rewarding (and demanding) bathroom remodels we do.
Frameless glass: A shower enclosure made from heavy tempered glass (3/8" or 1/2") held in place with hinges and clamps instead of an aluminum frame. The default we install on every project. Looks better, doesn't mildew, doesn't oxidize, lasts 30+ years if cleaned. Custom-measured after tile is set.

G

GFCI (ground-fault circuit interrupter): An electrical outlet that shuts off if it detects a ground fault — required by code in any wet area. California Building Code requires GFCI protection on all bathroom outlets and on any outlet within six feet of a sink. We update older homes' outlets to GFCI as part of any bathroom remodel.
GPG (grains per gallon): The standard measure of water hardness in the US. Sacramento County water tests 6–14 GPG depending on neighborhood (City of Sacramento and Folsom Lake areas trend lower at 5–9; Carmichael, Fair Oaks, eastern unincorporated trend higher at 10–14; Wilton wells often exceed 20 GPG). Hard water etches glass, oxidizes chrome, and shortens valve cartridge life. Drives material selection.
Grout: The cement-based filler between tiles. Standard cementitious grout needs sealing and re-sealing. Epoxy grout (Mapei Kerapoxy, Laticrete SpectraLOCK) is non-porous and hard-water-friendly — preferred for Sacramento showers but $400–$800 more per project.

H

Hard water: Water with high mineral content, typically calcium and magnesium. Above 7 GPG is considered hard. Sacramento County is universally hard. We choose finishes (brushed-gold, polished-nickel) and valve tiers that hold up; we avoid polished chrome and entry-level fixtures.
Herringbone tile: A tile pattern where rectangular pieces lay in a zig-zag. Popular for shower walls and accent strips. More labor-intensive to install than straight stack ($6–$12 per square foot premium) and produces 8–12% more waste from cuts. Worth it for the visual impact.

J

Joist: The horizontal wood members that support a floor. Pre-1990 Sacramento homes typically use 2x10 joists at 16" on center; newer construction uses I-joists or engineered joists. Joist condition determines whether we can do a curbless shower from above (slab cut required) or from below (joist access in raised-foundation homes).

K

Knob-and-tube wiring: Pre-1950 electrical wiring with insulated conductors run through ceramic knobs and tubes. Common in East Sac, Land Park, Curtis Park, and Old Folsom. Not inherently dangerous if undisturbed, but most insurance carriers require it be replaced when found during a remodel. We upgrade to modern Romex during the rough-in phase.

L

LCP (largest contentful paint): A web performance metric that measures how fast the largest visible content loads. Why it's in this glossary: it's also a Google ranking factor for the bathroom remodeling content you're reading. The site you're on is optimized for it. (Not a bathroom term, but you're here, so.)
Linear drain: A long, narrow drain that sits along one wall of the shower instead of in the center. Required for true curbless showers because it lets the floor slope in only one direction. Brands we install: Schluter Kerdi-Line, ACO ShowerDrain, Infinity Drain.

M

Mud bed: A traditional shower-pan construction method using a sloped bed of dry-pack mortar over a pan liner. Largely replaced today by foam-pan systems (Schluter Kerdi-Tray, Wedi Fundo) which are faster, more reliable, and easier to inspect. We default to foam.

N

Niche: A recessed shelf built into a shower wall to hold shampoo, soap, and other bottles. We install dual niches as standard at Signature tier and above. Niche placement matters: too high you can't see the bottle, too low you bend over. Our default is 60–66 inches above the floor for the shampoo niche.

P

Pan (shower pan): The waterproof base of the shower. Modern shower pans are pre-sloped foam (Schluter Kerdi-Tray, Wedi Fundo) or built-up mud bed with a sheet-membrane liner. Both work; the foam systems are 4x faster to install and easier to inspect.
PEX: Cross-linked polyethylene plumbing pipe. Replaced copper as the residential plumbing standard in California around 2010. PEX handles freeze-thaw better than copper and resists Sacramento's hard-water mineral deposits longer. Most newer homes already have PEX; we re-pipe older homes' affected branches as part of bathroom remodels.
Plaster wall: Wall finish made from gypsum or lime plaster troweled over wood lath. Common in pre-1950 Sacramento homes (East Sac, Land Park, Curtis Park, Old Folsom). Beautiful, durable, and a pain to demo cleanly. We score, cut, and remove in panels — 2x the labor of drywall demo.
Porcelain tile: Ceramic tile fired at higher temperatures, denser and less porous than standard ceramic. Glazed porcelain is essentially impervious to water and Sacramento's hard water — our default for shower walls and floors.

Q

Quartz countertop: Engineered stone — about 90% crushed quartz held together with polymer resin. Non-porous, doesn't need sealing, hard-water-friendly. The default vanity countertop we install. Brands: Cambria (US-made, lifetime warranty), Caesarstone, Silestone.

R

Rough-in: The plumbing and electrical work behind the walls, before tile and fixtures go in. Inspected by the local building department before we close walls. Catches problems early. Sacramento County rough-in inspections typically take 2–5 business days to schedule.

S

Schluter Kerdi: A waterproofing membrane system installed behind tile. Industry-leading for shower applications. Comes in sheet, board, and tray forms. Carries a 10-year limited warranty when installed by a certified installer (we are). Default on every shower we build.
Slab on grade: A concrete-slab foundation poured directly on the ground. Most Sacramento, Folsom, Elk Grove, Roseville homes built after 1985. Slab construction is great for energy efficiency but requires cutting the slab to relocate any drain — including for curbless showers and tub-to-shower conversions where the drain location moves.
Subway tile: A 3x6 (or larger) glazed ceramic rectangle, traditionally white. Originated in NYC's 1904 subway. Affordable, classic, hard-water-friendly. Common in East Sac and Land Park historic baths. We mix subway with hexagon mosaic floors for period-correct restoration projects.

T

Tankless water heater: A water heater that heats water on demand rather than storing it. Endless hot water, smaller footprint, longer lifespan. Recommended for Estate-tier remodels with multi-zone showers (rainfall + body sprays + handheld can demand 8+ GPM, more than most tank heaters can sustain).
Thermostatic valve: A shower valve that maintains a set temperature regardless of pressure changes upstream. Better than pressure-balancing valves for homes with pressure dips. Standard on our Signature and Estate tiers. Brands: Kohler, Delta MultiChoice, Hansgrohe iBox.
Title 24: California's energy efficiency code. Bathroom remodels generally don't trigger Title 24 review unless you're adding a heated floor (which we recommend) or replacing a window. The few times it does come up, your contractor handles the paperwork.
Trim (faucet trim): The visible parts of a faucet, valve, or showerhead — handles, escutcheons, spouts. The mechanical guts (cartridge, valve body) are inside the wall. Trim can be swapped without re-piping.
Tub-to-shower conversion: Replacing an unused tub (often a 1990s-2000s garden tub) with a frameless walk-in shower in the same footprint. The most-requested project we do in Sacramento County. Typical investment: $14k–$38k.

V

Vanity: The bathroom cabinet that holds the sink and (sometimes) storage. Floating vanities are wall-mounted and feel modern; freestanding vanities sit on the floor and look more traditional. We install both. Typical price ranges: $1,200–$8,000 stock, $4,000–$22,000 custom millwork.
Vapor barrier: A plastic sheet installed behind walls in wet areas to prevent moisture from migrating into the framing. Older homes often have failing or absent vapor barriers — we add or replace them as standard during any shower install.

W

Walk-in shower: A shower with no door (or a single-door walk-around enclosure), large enough to step into without ducking under a curtain rod. Almost always frameless glass on Sacramento Bath projects. The most-requested upgrade we do.
Waterproofing system: The membrane behind tile that keeps water from migrating into the wall and floor structure. Schluter Kerdi and Wedi are the two we install. Critical for shower longevity. Failed or absent waterproofing is the single most common reason 1980s–2000s Sacramento bathrooms need to be torn out today.

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