RoomveilManualOpen Roomveil

Manual · 03

Walls: paint, wallpaper and tile

Paint, wallpaper and tile, step by step, for one wall or a whole room.

Use this tool to see a new paint color, wallpaper or tile on your wall, and to find out how many cans, rolls or tiles to buy. It works for one wall or a whole room.

Open the walls tool

Step 1 · How big is the wall?

Step 1 for one wall.12345
Step 1 for one wall.
  1. One wall or A whole room.
  2. The wall, drawn to scale. Drag the orange dot to resize it.
  3. Width: corner to corner, along the floor.
  4. Height: floor to ceiling.
  5. Units. You can still type any unit in the boxes.

Choose A whole room to paint every wall. You still measure the wall you will photograph, then add the room's length from front to back. Roomveil adds the other walls for you. It starts with 1 door and 1 window on the other walls; set them to 0 if there are none.

A whole room.123
A whole room.
  1. Room length, front to back: the walls on each side of this one.
  2. Doors on the other walls. Each takes off about 21 ft².
  3. Windows on the other walls. Each takes off about 15 ft².

Step 2 · Anything on this wall?

Add each window, door or closet on this wall so it is left out of the count. A plain wall? Just press Continue.

A window and a door added.123
A window and a door added.
  1. Add window, Add door and Add closet. More has fireplaces, switches, radiators, shelves, TVs and pictures.
  2. Drag an item to where it really is. Tap it to select it, then drag its orange dot to resize it.
  3. Each item is listed with its size. Tap it for exact sizes.

Windows, doors, closets and fireplaces are taken off the wall. Radiators, shelves, TVs and pictures are not: the new finish goes behind them.

Tap an item twice (or tap it in the list) to type exact sizes. In feet and inches, a plain number means inches.
Tap an item twice (or tap it in the list) to type exact sizes. In feet and inches, a plain number means inches.

Step 3 · Add a photo (optional)

Stand back and take one photo of the whole wall. Your phone's own photo picker opens, so there is no permission popup. Or press Sample room to try it first.

Adding a photo.123
Adding a photo.
  1. Use my photo opens your phone’s photo picker.
  2. Sample room puts the practice room back.
  3. Your photo. Drag the four orange dots onto the corners of the wall.
your wall in the photo1 Take the photo standing back, whole wall in view.2 Drag each orange dot onto a corner of the wall.3 Where furniture hides a corner, put the dot where the corner would be.
Lining up your photo. The better the dots sit on the corners, the more real the result looks.

Step 4 · Choose a look

Paint.1234
Paint.
  1. Paint, Wallpaper or Tile.
  2. Colors, or Any color. These are for the preview; at the store, pick the matching color card or ask them to match it.
  3. Coats. Two is normal. Use three when painting a light color over a dark one.
  4. Add primer for new drywall, patched walls or a big color change. Paint the ceiling too appears for a whole room.
Wallpaper. Choose store-bought rolls or a custom printed mural, the pattern, the roll size and the pattern repeat.
Wallpaper. Choose store-bought rolls or a custom printed mural, the pattern, the roll size and the pattern repeat.
roll widthwall width ÷ roll width = strips, round upwall height+ pattern repeat+ 4″ to trimone rollStrips per roll = roll length ÷ (wall height + repeat + 4″), round down.Rolls = strips ÷ strips per roll, round up, then add 1 spare.
How the rolls are counted. Roomveil adds one spare roll. Buy them all with the same batch number, so the color matches.
Tile. Choose the shape, color, grout and where on the wall it goes.
Tile. Choose the shape, color, grout and where on the wall it goes.
18″BACKSPLASH4′LOWER 4 FTWHOLE WALL
Backsplash runs 18 inches up from the counter to the bottom of the wall cabinets. Lower 4 ft covers the bottom of the wall. Whole wall goes floor to ceiling. Set height lets you type your own.

A backsplash also asks for the Counter height (floor to the top of the counter), which starts at 36 inches. Tiles include 10% spare for cuts; tap the tile line to change it to 5% or 15%. You can also turn on Also paint the rest of the wall to add paint for the part above the tile.

Step 5 · Here’s how it looks

Before and after.123
Before and after.
  1. Drag across the photo to compare the wall before and after.
  2. Match the room’s light keeps the shadows from your photo, so the result looks real.
  3. Try it on my own photo, or line up your photo again.

With your own photo, a Covering furniture or plants? row appears. Brush over anything that stands in front of the wall, and it stays in front of the new finish.

Step 6 · What you’ll need

The shopping list.1234
The shopping list.
  1. Each line shows what to buy and how it was worked out. Tap a line to see the working and set your own price.
  2. Show prices: example store prices. Turn them off to hide money altogether.
  3. Share sends the list and your plan.
  4. Done goes back to the homepage.
Further down the list.12
Further down the list.
  1. Send this to a contractor opens your phone’s share menu (on a computer, it copies instead) with your sizes and the list, ready for a text or email.
  2. Get proper drawings of this room opens drawing mode. The first time, your sizes are already in; if drawings are already saved on this device, those open instead.
Share. Share sends the list as text, ready for WhatsApp, email or a message. Copy copies it. Take a screenshot to send the picture.
Share. Share sends the list as text, ready for WhatsApp, email or a message. Copy copies it. Take a screenshot to send the picture.

How the paint is worked out

Paint covers about 375 ft² per US gallon (makers say 350 to 400), or about 10 m² per litre. Roomveil takes the doors and windows off the wall area, multiplies by the coats, divides by the coverage and rounds up to cans you can buy. A little over a whole gallon becomes a gallon and a quart, not two gallons. Walls and ceilings use different paint, so the ceiling is a separate line.

Updated 2026-10-01