Build x Bathroom - 9 guides for the smallest carpentry in the house.

You came in through the Build lane, and this is the Bathroom intersection. It covers the handmade parts of a wet room: recessed shower niches, floating vanities, linen towers, bath shelves, tub trays, storage between studs, radiator covers, hamper cabinets, and removable access panels. It is the same practical territory readers reach through the Bathroom room-first Build slice, but this canonical lane-first page lives at /en/build/bathroom/.

The hook is simple: the smallest carpentry in the house - niches, vanities, linen towers. Bathroom builds are compact, exacting, and unforgiving. A kitchen island can hide a slightly imperfect back corner. A garage workbench can be proud of its shop scars. Bathroom carpentry sits six inches from water, steam, tile, caulk, and bare feet. It has to be beautiful at close range and smart enough to survive humidity, splashing, cleaning chemicals, and the inevitable search for the shutoff valve.

The nine bathroom build guides

Every leaf below is a real future URL under this canonical section. Iris will build the full leaf articles later; this hub establishes the structure and editorial coverage now.

  1. How to build a recessed shower niche - the featured guide and the highest-consequence build in the set.
  2. How to build a floating bathroom vanity - a wall-hung cabinet with stud anchoring, drawer clearance, and plumbing cutouts.
  3. How to build a linen tower - a narrow cabinet that turns one wall into towel storage without crowding the room.
  4. How to build a bath shelf - a slim wall shelf for bottles, hand towels, and the items that never belong on the vanity top.
  5. How to build built-in storage between studs - shallow storage that uses the empty wall cavity without pretending every wall is empty.
  6. How to build a wooden tub tray - the small cedar or teak project that makes a tub feel intentional.
  7. How to build a bathroom radiator cover - a ventilated cabinet skin that respects heat, moisture, and service access.
  8. How to build a laundry hamper cabinet - tilt-out or pull-out hamper storage sized for a bathroom footprint.
  9. How to build removable access panels - the project that protects every valve, cleanout, and shutoff you will need later.

Editor's Pick: how to build a recessed shower niche

How to build a recessed shower niche is the featured leaf because it carries the whole bathroom build philosophy in one small rectangle. A niche looks like simple tile work, but it is framing, waterproofing, slope, layout, thinset, backer board, membrane, and finish sequencing compressed into one wall cavity. Done well, it clears bottles off the shower floor and looks like it was planned with the house. Done badly, it becomes the quietest leak in the room.

The guide will cover choosing the wall, opening the cavity, confirming no pipes or wires are in the bay, framing the niche box, installing backer board, waterproofing every inside corner, sloping the sill toward the shower, laying tile so cuts land cleanly, and sealing the perimeter without trapping moisture. It will also say the hard thing plainly: if the shower pan is being rebuilt, if the waterproofing system is unfamiliar, or if the wall is structural, call a professional.

What bathroom building is really about

Bathroom builds are not about making big furniture. They are about stealing inches without stealing serviceability. A floating vanity creates floor visibility and makes the room feel larger, but the wall must carry the cabinet and the plumbing must still be reachable. A linen tower adds vertical storage, but it must stop before it blocks the door swing or traps a baseboard heater. A between-studs cabinet gains hidden storage, but only in a non-structural bay free of pipes, wiring, vent ducts, medicine cabinet backs, blocking, or fire stops.

The right mental model is cabinetmaking under wet-room rules. The finished piece has to handle humidity, but it also has to let the bathroom continue functioning as a mechanical room. Every bathroom has shutoffs, traps, supply lines, drains, fans, GFCI outlets, tile edges, caulk seams, and sometimes hydronic heat. Your build is successful when it improves the room and still lets a plumber, electrician, or future version of you get to what matters.

Project notes by build

Recessed shower niche

The niche is the highest-skill project because it penetrates the waterproofing plane. The opening must fit the tile layout as much as the shampoo bottle. Plan the niche around full tiles whenever possible, place the bottom above the main splash zone, slope the sill slightly toward the shower, and use a compatible waterproofing membrane. Link: recessed shower niche guide.

Floating bathroom vanity

A floating vanity is furniture attached to structure. It needs a ledger, blocking or studs, cabinet-grade plywood, moisture-resistant finish, drawer boxes that clear the trap, and a top that sheds water. Build the carcass square, pre-finish the inside faces, and cut plumbing openings generously enough for service. Link: floating bathroom vanity guide.

Linen tower

A linen tower is the bathroom's vertical archive: towels, toilet paper, cleaning cloths, extra soap, first-aid supplies. The best towers are shallow enough not to crowd the walkway and tall enough to use the dead air above shoulder height. Anchor to studs, scribe to baseboard, and leave ventilation gaps if stored towels are still slightly damp. Link: linen tower guide.

Bath shelf

A bath shelf is small, visible, and handled constantly. Use sealed hardwood, brass or stainless hardware, and a profile that does not catch water against the wall. Avoid deep shelves above a toilet where items can fall into the bowl or block tank access. Link: bath shelf guide.

Built-in storage between studs

Between-studs storage works only when the wall cavity is actually available. Scan, open a small inspection hole, confirm the bay is not structural or utility-filled, then build a shallow box that screws to the studs and has a finished face frame. Never cut a stud for storage without structural review. Link: built-in storage between studs guide.

Wooden tub tray

The tub tray is the easiest entry point: measure the inside tub width, add stops underneath so it cannot slide, use teak, cedar, or sealed oak, soften every edge, and finish with a water-tolerant oil or film finish. The tray should lift away for cleaning. Link: wooden tub tray guide.

Bathroom radiator cover

A radiator cover is not a sealed cabinet. It needs intake at the bottom, release at the top, metal mesh or open slats, and enough clearance that heat moves into the room instead of staying inside the box. Use paint and materials rated for heat and humidity. Link: bathroom radiator cover guide.

Laundry hamper cabinet

A hamper cabinet needs airflow first, beauty second. Damp towels and gym clothes need ventilation, so add cane, perforated panels, slatted doors, or rear ventilation. The tilt-out geometry has to clear the room's swing paths. Link: laundry hamper cabinet guide.

Removable access panels

Access panels are the least glamorous and most merciful bathroom build. They hide plumbing without burying it. Use magnets, cabinet catches, visible trim, or tile-ready panel systems so the shutoff, cleanout, or tub valve can be reached in minutes. Link: removable access panels guide.

What needs a pro

Call a pro for structural wall changes. Cutting studs, headers, joists, blocking, or any member that carries load is no longer a small bathroom build. Call a pro for waterproof shower pan work. A niche can be a DIY project inside an existing wall only if you understand the waterproofing system and are not rebuilding the pan; pan slope, liner, membrane continuity, and drain connection are failure points that rot floors quietly. Call a pro for electrical work inside wet zones. Bathroom receptacles, lighting near a shower, fan wiring, heated floors, and anything tied to GFCI or AFCI protection must follow code. Call a pro for moving plumbing. Supply line reroutes, drain relocation, vent changes, and trap arm changes require plumbing knowledge and often permits.

There is also a softer pro line: if the project would make the bathroom unusable for more than a weekend and it is your only bathroom, consider hiring or at least staging the work with a professional plan. Bathrooms are small, but when they are down, the whole house feels down.

Materials that belong in bathroom builds

Cabinet-grade plywood is the base material for vanities, towers, and hidden boxes. It stays flatter than solid wood and takes finish well. Marine plywood is excellent but expensive; use it when the piece sits close to splash zones or when durability matters more than cost. Solid wood works for shelves, trays, slats, and frames if sealed on all sides before installation. Teak, cedar, oak, maple, and poplar all behave differently: teak and cedar tolerate moisture better; oak and maple finish beautifully; poplar paints well but dents easily.

Use stainless, brass, or coated hardware in wet rooms. Plain steel rusts. Zinc screws are not enough near showers. Choose hinges, drawer slides, catches, and fasteners that will not stain tile or swell cabinet edges. For finishes, use water-based polyurethane, marine varnish where appropriate, oil finishes on removable trays, and high-quality enamel paint on cabinets. Seal cut edges first; plywood edges drink water faster than faces.

The bathroom build toolkit

Common mistakes in bathroom builds

Burying the shutoff. A vanity, tower, or access panel that blocks valves is not finished; it is a future emergency. Leave service space and make it obvious how to open it.

Using interior MDF in splash zones. MDF swells at exposed edges. Use plywood, sealed hardwood, PVC trim, or moisture-resistant panels where water is expected.

Forgetting tile thickness. A niche framed to rough size can become too small after backer board, membrane, thinset, and tile. Build from finished dimensions backward.

Skipping ventilation in enclosed storage. Hampers, radiator covers, and towel towers need airflow. Closed boxes in bathrooms trap moisture.

Assuming every stud bay is empty. Bathrooms concentrate plumbing, electrical, fan ducts, blocking, and old repairs. Probe before cutting.

Attaching floating vanities only to drywall anchors. Drywall anchors do not carry bathroom cabinetry. Find studs, add blocking, or redesign.

How to sequence bathroom build work

First, map the wet and mechanical systems: water supply, drain, vent, electrical, fan duct, radiator, access needs. Second, choose the build that does not compromise those systems. Third, measure the finished surfaces, not the room in theory. Tile can be out of plumb, plaster can be wavy, and tubs can be slightly proud of the wall. Fourth, prefinish everything possible outside the bathroom. Fifth, install with reversible service in mind. Sixth, seal only the seams that should be sealed; leave intentional ventilation where air needs to move.

That sequence is why a bathroom build feels different from a living room shelf. The room is small, but the constraints are layered. When you respect the layers, the project looks calm. When you ignore them, the room fights back.

Design decisions that make a bathroom build feel permanent

Depth matters more than width. A 4-inch-deep between-studs cabinet can hold medicine, razors, spare soap, and small bottles without stealing walkway space. A 10-inch-deep cabinet in the same location may make the room feel crowded. In bathrooms, shallow storage often works better because most objects are small and the user stands close to the wall.

Shadow lines are better than mystery gaps. Where a linen tower meets an uneven wall, leave an intentional reveal or scribe the side panel cleanly. Random gaps look like mistakes and collect dust. Intentional reveals make the build look designed around old walls rather than defeated by them.

Access is part of the elevation. A beautiful panel that needs a knife to open is not serviceable. Use finger pulls, magnetic catches, push latches, visible brass screws, or trim details that tell the next person how the panel opens. The best access panel is visually quiet but mechanically obvious.

Ventilation should be visible enough to trust. Radiator covers, hamper doors, and towel storage need air movement. Slats, cane, perforated metal, open backs, and toe gaps are not decorative extras; they are how the build survives damp fabric and heat.

Bathroom build compatibility checklist

What each build teaches

The wooden tub tray teaches measuring to real fixtures instead of nominal sizes. The bath shelf teaches rust-aware hardware and sealed shelf edges. The removable access panel teaches restraint: conceal the mechanicals, but do not make them hard to reach. The hamper cabinet teaches airflow and door geometry. The linen tower teaches tall-cabinet anchoring and scribing. The between-studs cabinet teaches wall investigation. The floating vanity teaches structure. The radiator cover teaches heat movement. The recessed shower niche teaches the line between carpentry and waterproofing.

Starter sequence for new builders

  1. Build a wooden tub tray to learn measuring, edge softening, stops, and water-tolerant finishing.
  2. Build a bath shelf to learn stud layout, wall anchors, and sealed shelf edges.
  3. Build removable access panels to learn clean trim, magnets or catches, and service-first thinking.
  4. Build a laundry hamper cabinet to learn airflow, door geometry, and cabinet boxes.
  5. Build a linen tower to learn scribing, wall anchoring, and tall cabinet stability.
  6. Build storage between studs only after you are comfortable inspecting wall cavities.
  7. Build a floating vanity when you can square a cabinet and confidently hit structure.
  8. Build a radiator cover when you understand airflow and service clearance.
  9. Build a recessed shower niche only when waterproofing details are fully planned.

Related bathroom lanes and build rooms

Stay in the bathroom: Bathroom Repair, Bathroom Install, Bathroom Clean, Bathroom Organize, Bathroom Decorate, and the Bathroom hub.

Keep building elsewhere: Build in the Kitchen, Build in the Living Room, Build in the Bedroom, Build in the Garage, Build in the Basement, Build on the Deck and Patio, Build in the Lawn and Garden, Build for the Exterior, and all Build guides.

Final editorial note

Bathroom carpentry rewards restraint. The best projects here do not shout. They make the bottles disappear, make the towels reachable, make the valves available, make the radiator safer to live with, and make the room feel planned instead of patched. This is not big woodworking. It is precise domestic infrastructure, scaled to the most demanding room in the house.

Build one small thing first. Finish every edge. Seal every face. Keep every shutoff reachable. Then let the room tell you what it needs next.