
Painting a room in your home is a great way to change the look of a space quickly, cheaply, and relatively painlessly. It is an almost universally acknowledged DIY project. Before you get started, it's important to prepare your space and walls, decide on a colour, and choose a finish. You'll also need to decide whether to use a paint sprayer or roller and whether you need a primer. Once you've got your plan of attack, you can start painting, usually starting with the ceiling, then moving on to the walls, and finishing with the baseboards.
| Characteristics | Values |
|---|---|
| Prep work | Place a drop cloth on the floor and over any furniture. Inspect walls for imperfections and repair any cracks or small holes. Sand down any repaired areas with 220-grit sandpaper and a sanding sponge. Vacuum and wipe the walls with a damp rag. Allow the walls to dry completely. |
| Paint choice | Consider whether you want a warm or cool shade, a neutral or saturated colour, and how the shade will complement existing furniture or art. Choose a finish depending on how glossy and durable you want the paint to be. |
| Paint amount | One gallon per 400 square feet is a general rule of thumb, but use a paint calculator for a more precise number. |
| Primer | Primer helps the topcoat adhere and blocks stains, imperfections, and mould. It is especially important if you're painting over a darker colour with a lighter one. |
| Painting process | Paint the ceiling first, then the walls, and finish with the baseboards. Leave windows and doors for last. |
| Clean-up | Remove painter's tape and drop cloths. Allow the paint to dry for 24-48 hours before moving furniture back into the room. |
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What You'll Learn
- Preparation: Prep your space, removing furniture and protecting floors with a drop cloth
- Choosing paint: Decide on colour, finish, and amount of paint needed
- Priming: Use primer to cover stains and block previous colours
- Painting: Cut in the edges of walls, then use a roller for the rest
- Clean-up: Leave to dry, then remove tape and drop cloths

Preparation: Prep your space, removing furniture and protecting floors with a drop cloth
Painting is a quick and budget-friendly way to give a room a new look. Whether you're painting a bedroom or a bathroom, preparation is the first and most important step. Before you even dip the brush into the paint, you should prep your space by removing furniture and protecting your floors with a drop cloth.
First, remove everything from the walls, including artwork, pictures, and nails. If you have lighting on the wall or ceiling, you can either remove the fixture or cover it with plastic and tape to protect it while you paint. If you're painting doors, remove knobs and locksets. Tape the appropriate screws to the backs of switch plates and outlet covers and store them in a covered plastic container or resealable bag. Label any other hardware pieces that go with other items removed from the space so they don't get lost during painting preparations.
Next, you'll want to protect your floors. Buy enough drop cloths to cover your entire floor and any furniture left in the space. Choose heavy-duty canvas or cloths lined or backed with a plastic coating to prevent paint from leaking through. If you don't have enough space to move furniture out of the room, make a stack in the center of the room and cover it with plastic.
Before you start painting, you'll also want to fill in any holes in the walls with spackle and sand down any peeling or loose paint to ensure the new paint adheres. Wipe all sanded areas with a clean cloth and give the room a thorough dusting and cleaning to ensure no dust balls, dog hair, or cobwebs get stuck in the fresh paint.
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Choosing paint: Decide on colour, finish, and amount of paint needed
Choosing the right paint for your room can be a daunting task, with the myriad of colours, finishes, and paint types available. Here is a step-by-step guide to help you decide on the colour, finish, and amount of paint needed for your project.
Colour
The first step in choosing a paint colour is to determine the general characteristics you want. Do you prefer warm or cool tones? Are you looking for a neutral or saturated shade? Consider the existing furniture and artwork in the room and how the paint colour will complement them. Browse fan decks and paint chips to get a sense of the different options available. Once you've narrowed down your preferences, pick a few shades and get samples. Many direct-to-consumer brands offer adhesive swatches that you can stick on your wall to visualize the colour better. Test the colours at different times of the day, as lighting can significantly impact their appearance. You can also utilize online tools provided by paint companies to upload a photo of your space and preview different colours on the walls. However, keep in mind that colours can appear different in real-world conditions, so testing them in your space is crucial.
Finish
When it comes to finish, most paints offer a range of reflectiveness, from flat (no shine) to high gloss. The finish you choose will depend on the room you're painting and the level of durability and glossiness desired. For living rooms and bedrooms, eggshell finish is a popular choice as it strikes a balance between being scrubbable and not showing too many flaws. If you're painting trim in these areas, consider using satin or semi-gloss for added durability and contrast. For bathrooms and kitchens, a satin finish or higher is recommended to withstand moisture and facilitate cleaning.
Amount of Paint
To determine the amount of paint needed, use a paint calculator, which factors in the room's square footage and the number of coats required. As a general rule of thumb, one gallon of paint covers approximately 400 square feet. However, this may vary depending on the specific paint and the colour you choose. If you're making a dramatic colour change, such as going from a dark colour to a light one, you'll likely need additional paint. Additionally, deeper colour bases tend to require more coats than lighter colours. Consider using a tinted primer to help reduce the number of paint coats needed. Remember to account for windows and doors when calculating the paint quantity, as these areas will require less paint.
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Priming: Use primer to cover stains and block previous colours
Priming is an essential step in the painting process, especially if you want to cover stains or block previous colours. Primer is a unique formula that adheres to surfaces, creating a clean and smooth foundation for your paint to stick to. It can also help cover up stains, block strong colours from showing through your new paint job, and even block irritants like odours, mould, and mildew.
When choosing a primer, it's important to select one that is designed to block stains and previous colours. Some popular options include oil-based primers like Rustoleum's Cover Stain or Zinsser Cover Stain, which can be used on a variety of surfaces without the need for sanding first. If you're looking for a water-based option, Zinsser 1-2-3 Primer is a great choice that can be used for interior or exterior projects and provides a high level of stain-blocking. For severe stains or dark colours, you may need to apply more than one coat of primer. However, even if the primer doesn't completely hide the stain or previous colour, it will still enhance the paint's ability to stick to the surface and provide a uniform finish.
It's important to note that most paints do not contain primer, and even if they do, it's usually best to apply a separate coat of primer first for superior results. This is especially true if you are changing the colour or painting an unpainted surface. If you're using a paint sprayer, be sure to follow the manufacturer's instructions and practice on a scrap piece of drywall or cardboard first to get a feel for the technique.
When applying the primer, use an old paintbrush or a roller, depending on the surface area you're covering. Start by generously applying the primer to any stained or discoloured areas, and then apply it uniformly to the rest of the surface. Allow the primer to dry completely before applying your chosen paint colour.
By following these steps and choosing the right primer for your needs, you can effectively cover stains and block previous colours, ensuring a smooth and professional finish for your painted room.
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Painting: Cut in the edges of walls, then use a roller for the rest
Painting a room in your home can be a quick and budget-friendly way to give a room a new look. When it comes to painting walls, it is recommended to cut in the edges first and then use a roller for the rest.
Cutting in the Edges:
Start by cutting in the edges of the wall using a two-inch brush. Begin at one corner of the ceiling and work across to the adjacent corner, creating a strip of paint as wide as the brush. Then, move down along both wall edges to the skirting board. This process, known as "cutting in", leaves brush marks that will be covered by the roller, creating a seamless finish.
Using a Roller:
Once the edges are cut in, it's time to load your roller with paint. Place the roller on an extension pole and fill your paint tray. Ensure the roller is well-coated but not dripping with paint. Start rolling about half a roller's width from a corner, typically to the left if you're right-handed. Move in a V-shape, going up and down the wall to distribute the paint evenly.
Techniques for a Smooth Finish:
When using a roller, it's important to avoid a heavy buildup of paint along the edges. Start about 6 inches from the edge and unload the paint from the roller. Work back toward the edge, using a light touch. Roll up and down from floor to ceiling, overlapping each stroke by about three-quarters of the roller's width. Always keep the roller moving to avoid ridges and marks.
Final Touches:
After completing a section, go back over the cut-in edges with the roller to blend any brush marks. Repeat this process for each wall, ensuring the paint is still wet when blending. For the best results, it's recommended to use a quality roller sleeve and handle, as well as a 5-gallon bucket with a screen for loading paint.
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Clean-up: Leave to dry, then remove tape and drop cloths
When painting a room, the clean-up process is just as important as the painting itself. Leaving the paint to dry is a crucial step, as it ensures that your paint job is not ruined and that the paint adheres properly to the surface. The amount of time you should leave the paint to dry will depend on the type of paint used and the number of coats applied. For most projects, allowing the paint to dry for 24 to 48 hours is recommended.
Once the paint is dry to the touch and no longer feels tacky, it is time to remove the painter's tape. Start by slowly and carefully peeling back the tape from the edges, pulling it back on itself at a 45-degree angle. This will help ensure that you do not accidentally peel any paint off the wall or ceiling. Removing the tape at an angle will also help prevent the tape from breaking or leaving residue on the surface.
After removing the tape, it is important to check for any paint bleed or imperfections. If there are any areas where the paint has bled under the tape, use a small brush or cotton swab dipped in the appropriate paint colour to touch up the area. This will help create a clean, crisp line.
Finally, you can remove the drop cloths that were used to protect the floor and any remaining furniture in the room. Be careful not to track any paint onto the freshly painted surface as you remove the drop cloths. Fold the drop cloths carefully, ensuring that any wet paint does not touch other surfaces. Dispose of the drop cloths appropriately or clean and store them for future use, depending on the material and condition.
By following these steps, you will ensure that your freshly painted room is left clean and tidy, with crisp paint lines and a professional finish.
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Frequently asked questions
A general rule of thumb is one gallon of paint per 400 square feet. However, this is just a rough guideline. To get a more precise number, use a paint calculator, which factors in window and door measurements.
Prepping a room involves removing furniture, covering the floor with a drop cloth, repairing wall imperfections, and cleaning your walls.
If your walls have been previously painted, you don't need to prime them. However, if you're painting from a dark colour to a light one, or vice versa, you will need a separate coat of primer to block out the previous colour.
The finish affects how glossy and durable the paint will be once dry. For non-damp locations like living rooms and bedrooms, eggshell is a popular choice as it's scrubbable but doesn't accentuate flaws. For kitchens and bathrooms, a satin finish or higher gloss is recommended for better durability against moisture.











































