Bathroom Remodeling & Kitchen Remodeling Glossary

This glossary breaks down key bathroom remodeling terms Shoreline homeowners need to know, especially when dealing with older homes, brickwork, or tricky layouts. Whether you're planning a full bathroom renovation or a simple bathroom remodel, understanding these terms helps you ask the right questions and avoid costly mistakes. From walk-in showers to cement backer board, we’ll explain what each means and why it matters in your Shoreline home.

Shoreline’s older homes often come with unique challenges, thin walls, original brick showers, or layouts that don’t match modern codes. That’s why knowing the right bathroom remodeling terms can save you time and money. Whether you’re tackling a bathroom remodel in a 1920s craftsman or updating a 1980s ranch, this glossary covers the essentials. Need help deciding between a tub-to-shower conversion and a wet room? Or wondering how waterproofing membrane keeps your shower dry for decades? We’ve got you covered. For a full list of our services, including kitchen remodeling Shoreline, visit our services page. Ready to start? Book a consultation to discuss your project with our team of local experts.

Walk-in shower

A walk-in shower has no lip or threshold at the entrance, making it easier to step in, ideal for Shoreline homes with limited mobility or slippery floors. These showers often use frameless glass for a sleek look and are paired with linear drains for better water flow. If your home has a tub-to-shower conversion, a walk-in design can maximize space while meeting ADA guidelines. For older homes, we often reinforce floors with cement backer board before tiling to prevent leaks.

Curbless shower

A curbless shower blends smoothly with the bathroom floor, creating a barrier-free entry. This design is popular in wet rooms and works well in Shoreline’s smaller bathrooms where every inch counts. However, proper waterproofing membrane and a shower pan with a slight slope are critical to prevent water damage. Without these, you risk mold or structural issues, especially in older homes with original subfloors.

Tub-to-shower conversion

A tub-to-shower conversion replaces an existing tub with a shower enclosure, often adding space or accessibility. In Shoreline’s older homes, this might involve removing a cast-iron tub (common in 1950s builds) and installing a walk-in shower with large-format tile for a modern look. If your home has brick walls or original tile, we’ll assess whether to preserve them or update for better waterproofing. See our pricing guide for cost estimates based on your home’s condition.

Wet room

A wet room is a fully waterproofed bathroom with no separate shower enclosure, just a linear drain in the floor. This design is great for Shoreline’s compact homes but requires heated floors and high-quality waterproofing membrane to handle moisture. Older homes may need reinforced flooring or a shower pan to avoid leaks. If you love the look but worry about maintenance, we’ll help you balance style and durability.

Floating vanity

A floating vanity is mounted above the floor with hidden supports, creating the illusion of extra space, perfect for Shoreline’s smaller bathrooms. These vanities often include built-in storage and are paired with porcelain tile backsplashes for a polished finish. In older homes, we’ll check for proper plumbing rough-ins and structural support before installation to avoid sagging or water damage.

Shower pan

The shower pan is the sloped, waterproof foundation under your shower that funnels water to the drain. In older Shoreline homes, these original pans often crack or slope wrong, causing leaks. We replace them with sturdy fiberglass or cement pans, then add a waterproofing membrane to stop mold and rot. See how we handle original tile or brick showers for homes with vintage fixtures.

Waterproofing membrane

A waterproofing membrane is a thin, flexible layer applied to shower walls and floors to block moisture. In Shoreline’s humid climate, this is non-negotiable, especially in walk-in showers or wet rooms. Without it, water seeps into walls, causing mold, rot, or even foundation issues. We use high-end membranes like RedGard or Schluter Kerdi, which are tough enough for older homes with tricky layouts.

Linear drain

A linear drain is a long, narrow drain (often hidden behind tile) that spreads water evenly across the shower floor, reducing splash and improving drainage. These are ideal for curbless showers and wet rooms, but they require precise installation to avoid clogs. In older homes, we may need to adjust the slope of the shower pan to ensure proper flow, something DIYers often miss.

Cement backer board

Cement backer board is a moisture-resistant board installed over shower walls before tiling. It’s essential in Shoreline’s damp climate, especially in tub-to-shower conversions or when replacing original tile. Without it, tile can loosen or mold grows behind the finish layer. We use brands like HardieBacker or Durock, which are built to last in high-moisture areas.

Thinset

Thinset is a thick, sanded adhesive used to glue porcelain tile or large-format tile to walls and floors. The sanded version (for walls) provides grip, while unsanded (for floors) spreads smoother. In older homes, we often use modified thinset for better water resistance. Applying it correctly is key, poor thinset leads to tile popping off, especially in showers.

Grout (sanded vs. unsanded)

Grout fills gaps between tiles, but the type matters: sanded grout (for wider gaps) is stronger and less prone to cracking, while unsanded grout (for narrow gaps) is smoother but weaker. In Shoreline’s bathrooms, we recommend epoxy grout in showers, it’s waterproof and won’t stain. Regular grout needs sealing every few years to prevent mold, which is a bigger issue in older homes with poor ventilation.

Porcelain tile

Porcelain tile is dense, durable, and water-resistant, making it the top choice for Shoreline bathrooms. It’s fired at higher temps than ceramic, so it won’t absorb water or crack underfoot. For large-format tile (big slabs), porcelain is a must, it hides imperfections in older floors better than ceramic. We stock locally sourced tile to reduce shipping delays and support regional suppliers.

Large-format tile

Large-format tile refers to oversized tiles (typically 12x24 inches or larger) that create a smooth, modern look. These are great for Shoreline’s smaller bathrooms because they reduce grout lines and make spaces feel bigger. However, they require a perfectly flat surface, often needing cement backer board or self-leveling compound before installation. Older homes may need extra prep to avoid uneven tiles.

Shower niche

A shower niche is a built-in shelf in the shower wall for soap and loofahs. In Shoreline’s older homes, these are sometimes carved into original brick or tile, adding charm. We seal them with waterproofing membrane to block leaks and often use porcelain tile that matches the shower walls for a polished look. Skip glass niches, they’re hard to clean and trap moisture.

Frameless glass

Frameless glass shower enclosures use metal or stainless steel clips to hold the glass in place, creating a clean, modern look. These are popular in walk-in showers but require precise measurements to avoid leaks. In older homes, we check for proper toilet rough-in or plumbing adjustments to ensure the glass fits without gaps. Low-quality glass can fog up or crack, we only use tempered, safety glass.

Exhaust fan CFM

CFM (cubic feet per minute) measures how much air an exhaust fan moves. For Shoreline’s humid climate, we recommend 50 CFM or higher for small bathrooms and 110 CFM+ for larger ones or wet rooms. A weak fan leads to mold and mildew, common in older homes with poor ventilation. We install fans with humidity sensors to run longer when needed, keeping your bathroom dry.

Comfort-height toilet

A comfort-height toilet has a taller seat (17–19 inches) for easier sitting and standing, reducing strain on joints. These are ideal for aging-in-place remodels or Shoreline homes with multi-generational families. If your home has a toilet rough-in too close to the wall, we’ll adjust the plumbing to fit a comfort-height model without sacrificing functionality.

Toilet rough-in

The toilet rough-in is the distance from the wall to the toilet’s drain pipe (usually 12 inches, but older homes vary). If your bathroom remodel includes moving the toilet, we’ll check the rough-in and adjust plumbing to avoid costly wall cuts. In Shoreline’s older homes, rough-ins might be 10 or 14 inches, we’ll design around that to keep your project on budget.

Heated floor

Heated floors use electric mats or hydronic tubing beneath tile to warm your bathroom, which is a luxury in Shoreline’s chilly winters. They’re especially useful in wet rooms or with porcelain tile on concrete slabs. Installation requires careful planning, we’ll insulate pipes, use moisture-resistant materials, and test for even heat distribution before finishing.

Grab bar / aging in place

A grab bar is a sturdy metal bar installed near toilets or showers to provide support for balance. It’s a key feature for aging in place remodels, helping Shoreline homeowners stay safe as they age. We use ADA-compliant bars with suction cups or bolted mounts, and we place them at the right height (33–36 inches) for maximum stability. See our guide on choosing a contractor for tips on selecting a pro who specializes in accessibility.

Change order

A change order is a written update to your bathroom remodeling contract when plans change, like swapping porcelain tile for stone or adding a heated floor. These can adjust costs or timelines, so we always review them with you before proceeding. In Shoreline’s older homes, unexpected issues (like asbestos tile or rotten subfloors) might require change orders. We’ll explain the impact on your budget upfront.

Punch list

A punch list is a final checklist of minor fixes (like loose tiles or missing caulk) before your bathroom remodel is complete. We inspect every detail, especially in older homes where hidden issues might surface, and address them before you take possession. This step ensures your new shower, vanity, or wet room meets your expectations and local codes.

Frequently Asked Questions