How to assemble an over-the-toilet storage unit

An over-the-toilet unit stands on two long legs either side of the toilet with shelves or a small cabinet above the cistern. It is tall, light and narrow, standing on a floor that may be wet, so the level, the leg positions and a wall fixing matter far more than the assembly itself.

Time
about 40 min
Difficulty
Easy
People
1 person
Steps
6

Tools needed

  • Cross-head screwdriver
  • Spirit level
  • Drill and bits for tiles or plasterboard
  • Masking tape
  • Wall fixings to suit your wall

Parts to check first

Before you start, lay everything out on a soft surface (the flattened box works) and check it against the parts list in your manual.

  • Two long side legs or frames
  • Shelves or cabinet section
  • Cross braces
  • Anti-tip bracket or wall strap
  • Screws and plastic feet

Step by step

  1. Step 1: Measure the width of the toilet cistern and the height to the top of it so the lowest shelf will clear the lid when it is raised.

  2. Step 2: Screw the shelves or cabinet section between the two side legs with the edge lips facing up, loosely at first.

  3. Step 3: Add the cross braces at the back, then tighten all screws so the legs are parallel and the frame is square.

  4. Step 4: Stand the unit over the toilet and adjust the feet until it is level and not resting on the cistern or pipes.

  5. Step 5: Mark the wall fixing position; on tiles, put masking tape over the spot and drill slowly with a tile bit to stop cracking.

  6. Step 6: Fix the bracket or strap to the wall, avoiding pipes behind the cistern, and connect it to the unit.

Common mistakes

  • Setting the lowest shelf too low, so the toilet lid cannot open.
  • Drilling blind behind the cistern where water pipes run.
  • Leaving the unit freestanding on a slippery floor.

Safety notes

  • Always fix the unit to the wall; it can fall onto someone sitting below.
  • Check for pipes before drilling near a toilet, and keep glass bottles and cleaning products off high shelves if children use the bathroom.

This is general guidance for this type of product. Your product's own manual comes first: follow its order, fittings and torque values where they differ from this page.

Updated 2026-09-30