Bathroom Remodeling & Kitchen Remodeling Glossary

Seattle’s older homes and rainy climate demand smart bathroom remodeling choices. This glossary breaks down key terms, like walk-in showers and waterproofing membranes, so you recognize red flags (like mold behind tile) and pick upgrades that last. Whether you’re tackling a tub-to-shower conversion or a full bathroom renovation, knowing these terms helps you avoid costly mistakes and work with contractors who understand Seattle’s brick-and-masonry quirks. anchor

Seattle’s bathroom remodeling projects often face unique challenges: leaky brick showers, outdated plumbing rough-ins, and the need for aging in place solutions. This glossary cuts through the jargon so you can spot problems early, like a linear drain clogged by debris or a shower pan failing under heavy tile. From wet rooms (popular in Seattle’s compact homes) to heated floors (a must for winter showers), we’ll explain what these terms mean for your remodel. Need a quote? anchor Start with our anchor guide for local insights. anchor

Walk-in shower

A shower without a raised threshold or tub, designed for easy access, ideal for Seattle’s older homes where step-in tubs are common. These often use frameless glass for a sleek look and curbless designs to prevent trips. If your home has brick or concrete walls, a walk-in shower lets you keep original features while adding modern waterproofing. anchor

Curbless shower

A shower with no lip or threshold, creating a smooth transition from floor to shower. This is great for aging in place or homes with uneven subfloors, but requires careful waterproofing membrane installation to prevent leaks into Seattle’s damp climate. Often paired with linear drains for better water flow.

Tub-to-shower conversion

Removing a bathtub and installing a shower in its place, often to free up space or modernize an outdated fixture. In Seattle’s older homes, this may involve reinforcing floors or adjusting toilet rough-in distances. A poorly done conversion can leave gaps where mold thrives, so hire a pro who knows brick and masonry. anchor

Wet room

A bathroom with no separate shower enclosure, just a fully tiled floor that drains to a linear drain or floor slope. Popular in Seattle’s smaller homes, but requires cement backer board and waterproofing membrane to handle moisture. Not ideal for homes with poor drainage or weak subfloors.

Floating vanity

A vanity that appears to float on the wall with hidden supports, creating an open look. In Seattle’s older homes, this often means reinforcing studs or using cement backer board behind brick walls. Ensure the vanity is properly anchored to handle daily use, especially in earthquake-prone areas.

Shower pan

The waterproof base under your shower, usually made of fiberglass or cement. In Seattle’s rainy climate, a poorly installed pan can lead to leaks and mold behind tile. Always use a waterproofing membrane and slope it toward the drain for proper water flow. anchor

Waterproofing membrane

A thin, flexible layer applied under tile to block water intrusion. Critical in Seattle’s damp conditions, especially in wet rooms or walk-in showers. Skipping this step can cause rot in subfloors or brick walls. Look for membranes rated for shower use.

Linear drain

Linear drain: A sloped channel for curbless showers or wet rooms that needs exact installation to fight Seattle’s mineral buildup. Pick a grate with small holes to block hair and soap scum. anchor

Cement backer board

A rigid board made of cement and fiberglass used as a base for tile in high-moisture areas. Essential in Seattle’s older homes with brick or concrete walls, as it prevents tile from cracking. Always use thinset to attach it to the wall.

Thinset

A type of mortar used to glue tile to cement backer board or walls. Comes in modified (for wet areas) and unmodified versions. In Seattle’s humidity, always use modified thinset for showers to prevent mold. Mix it properly, lumpy thinset leads to weak tile bonds.

Grout (sanded vs. unsanded)

Sanded grout (for wider joints) and unsanded (for narrow joints) fill gaps between tiles. In Seattle’s rainy climate, use epoxy grout in showers, it’s waterproof and mold-resistant. Unsanded grout is easier to clean but less durable for wet areas.

Porcelain tile

A dense, water-resistant tile made from clay and minerals, common in Seattle bathrooms for its durability. It’s less prone to staining than ceramic but can crack if installed over uneven subfloors. Large-format tile (big sheets) reduces grout lines, making cleaning easier in humid conditions.

Large-format tile

Tile sheets larger than 12x24 inches, reducing grout lines and making bathrooms look bigger. Popular in Seattle’s compact homes, but requires precise shower pan and wall prep to avoid seams. These tiles are heavier, ensure your home’s structure can handle them.

Shower niche

Shower niche: A built-in ledge for soap or shampoo, often cut into cement backer board during tiling. In older Seattle homes, these can cover pipes or wiring, plan the cutouts before demolition to dodge costly fixes later. anchor

Frameless glass

Frameless shower: Glass panels held by silicone seals instead of metal, offering a sleek look but demanding perfect measurements to stop leaks. In windy areas like West Seattle, use tempered glass and extra sealant to keep out drafts and water. anchor

Exhaust fan CFM

CFM rating: How much air a bathroom vent moves per minute. Seattle’s damp air needs at least 50 CFM for half-baths, 110 CFM for full baths. A weak fan traps moisture, watch for foggy mirrors after showers as a red flag. anchor

Comfort-height toilet

A toilet seat height (17–19 inches) between standard and ADA heights, reducing strain on knees and back. Ideal for aging in place or homes with older residents. In Seattle’s older homes, you may need to adjust the toilet rough-in distance to fit.

Toilet rough-in

Rough-in dimension: The gap between the wall and a toilet’s drain pipe (usually 12 inches). Older Seattle homes often have 10- or 14-inch setups, forcing custom plumbing. Measure before tearing out walls to avoid mid-project adjustments. anchor

Heated floor

Electric or hydronic heating installed under tile to warm floors. A must in Seattle’s winter showers, but requires waterproofing membrane and proper tile thickness to avoid cracking. Electric systems are easier to install in remodels.

Grab bar / aging in place

A wall-mounted bar for support, often required in aging in place remodels. In Seattle’s older homes, these can be installed over existing brick or studs. Choose ADA-compliant bars with a weight capacity of at least 250 pounds.

Change order

Change order: A written note to alter your remodel’s plans or materials after signing the contract. Common in Seattle when demolition uncovers rot or wiring issues. Always get it in writing to avoid last-minute sticker shock. anchor

Punch list

Punch list: A final walkthrough checklist for unfinished or flawed work before the project wraps. In Seattle remodels, this often catches missed caulking, chipped tile, or paint smudges. Go room by room with your contractor to spot everything. anchor

Frequently Asked Questions