The living room is the main face of a dwelling. It is in this room that the first impression regarding the taste, personality, and lifestyle of the homeowner is formed for every visiting guest. As the element with the largest surface area in the room, the interior arrangement of the living room walls plays a key role in creating an aesthetic and warm atmosphere, as well as giving a profound impression.
Painting house walls is one of the most satisfying home improvement projects. Whether to refresh the bedroom wall color, change the living room atmosphere, or paint the entire interior of a new house, careful material planning is the key to a successful job. One of the questions that most often confuses homeowners at the hardware store is: what size of wall paint should be purchased so that it is just right and neither lacking nor wasted?
Buying too few wall paint cans will cause the work process to stop halfway, waste time going back and forth to the store, and risk causing a tone mismatch if the paint batch is different. Conversely, buying excessive amounts of wall paint will consume the rest of your renovation budget and leave large paint cans cluttering your home storage.
So, what are the wall paint packaging size options available in the market, what is the practical formula for calculating wall paint needs according to the room area, and which packaging is the most economical? Check out the complete calculation guide from Avian Brands below!
Getting to Know Various Wall Paint Packaging Sizes in the Market
At hardware stores as well as Avian Brands official stores, wall paint products are generally packaged in several standard weight (kilograms) or volume (liters) sizes. Understanding the use of each packaging helps you make the most efficient choice:
1. Small Can Packaging (1 Kg)
The 1 kg packaging size is specifically designed for painting work in limited areas (touch-ups) or small-scale decoration projects. This packaging is ideal if you only want to create an accent wall on one side of the wall, beautify house pillars, patch walls after repairing hairline cracks, or paint furniture elements and handicrafts.
2. Standard Gallon Packaging (5 Kg)
The 5 kg gallon is the most popular size and the most purchased by homeowners. This size is perfect for the painting needs of one room, such as a standard-sized bedroom (e.g., 3 x 3 meters) or a small family room, providing two perfect coats of paint.
3. Medium Pail Packaging (20 Kg)
The 20 kg pail is the right choice for those of you who need wider coverage than a standard gallon, but do not yet need overly large packaging. This size is suitable for painting several rooms at once, such as the living room, dining room, and kitchen in a medium-type house, so you do not need to repeatedly buy small packages while still getting a more economical price per kilogram.
4. Large Pail Packaging (25 Kg)
The 25 kg pail is a large package designed for medium to large-scale painting projects. If Avian Brands Friends plan to paint the entire interior of the house, paint the exterior facade walls, or renovate an office building, buying a 25 kg pail package is much more economical and efficient because the price is cheaper per kilogram.
Practical Formula for Calculating Room Wall Paint Needs
To avoid guessing the wrong number of paint cans needed, you can use the following simple calculation formula based on the wall surface area (square meters):
Step 1: Calculate the Total Wall Area to be Painted
-
Formula: Wall Area = 2 x (Room Length + Room Width) x Room Height
-
Example: For a bedroom measuring 4 meters in length, 3 meters in width, and 3 meters in wall height:
-
Wall Area = 2 x (4 + 3) x 3 = 2 x 7 x 3 = 42 m²
Step 2: Subtract the Door and Window Area
House walls are usually cut by door and window areas that are not painted.
-
Example: 1 door (2 m²) and 1 window (1.5 m²) = Total 3.5 m².
-
Net Wall Area = 42 m² - 3.5 m² = 38.5 m²
Step 3: Calculate Liter Needs Based on Coverage Area
Generally, quality wall paint has a theoretical coverage of around 10-12 m² per liter per coat. For solid color results and perfect coverage, painting must be done in 2 coats.
-
Total Painting Area (2 Coats) = 38.5 m² x 2 = 77 m²
-
Amount of Paint Needed = 77 m² ÷ 10 m²/liter = 7.7 Liters (or about 11-12 kg of paint)
From the calculation results above, it is recommended to buy 2 gallons of 5 kg packaging plus 2 cans of 1 kg packaging for touch-up reserves.
Packaging Size Efficiency Comparison: Which is Most Economical per m²?
If calculated mathematically based on the price per kilogram (cost per kg), large-sized packaging (25 kg Pail) offers the highest economic value. However, true efficiency is not just about the cheapest purchase price, but rather its suitability for your volume needs. Buying a 25 kg pail just to paint a small 15 m² bedroom wall is actually inefficient because it will leave dozens of kilograms of paint that risk hardening if stored for too long.
Tips for Storing Leftover Wall Paint So It Doesn't Dry Out
If your house painting process leaves liquid wall paint, follow proper storage methods so the paint remains fresh and can be reused in the future:
1. Clean the Edges of the Can Lid
Wipe the leftover paint stuck to the circular gap of the can lid using a wet cloth so the paint does not dry and permanently lock the can lid.
2. Seal Tightly Airtight
Press the can lid until it is completely airtight. You can gently tap around the can lid using a rubber mallet covered with a cloth.
Suggested image: Someone tightly closing a wall paint can packaging using a rubber mallet so it is airtight and safe to store in the warehouse.
3. Store in a Cool and Dry Place
Keep leftover paint cans away from direct sunlight exposure and humid areas. Store paint cans on top of a wooden board base in the warehouse so the tin cans do not rust easily from the bottom.
Recommended Economical and High-Quality Wall Paint: Avitex Wizz
To get efficient wall painting results, save on coverage area, and cover perfectly with the right packaging choices, trust in Avitex Wizz from Avian Brands.
Advantages of Avitex Wizz from Avian Brands:
-
Wide and Economical Coverage: Formulated with Super Cover Technology that reaches a wider wall surface so the use of paint liquid is much more economical.
-
Optimal and Flexible Thickness: Can be lifted 2x thicker and a maximum of 40% dilution provides flexibility in application according to project needs.
-
Complete Packaging Size Options: Available in various packaging size variations ready to adapt to the scale of your home renovation project needs (1 kg, 5 kg, 20 kg, and 25 kg).
-
Superior Hiding Power: Able to cover imperfections in house walls with just two coats of painting.
-
Bright and Smooth Final Result: Produces a wall surface that is bright, smooth, and does not dull easily.
-
Environmentally Friendly and Safe: Made without mercury and lead, thus ensuring safety for the occupants of the house.
Calculate your house wall paint needs carefully, choose the right packaging size, and realize beautiful residential walls with Avitex Wizz from Avian Brands.
