In this article
- The three rooms are not three of the same thing
- Sequencing three rooms
- The colour question in a family house
- Why three bedrooms is not a size
- Frequently asked questions
- How much paint for a 3 bedroom house?
- How much of that is the master bedroom?
- What order should I paint three bedrooms in?
- Does it cost more if the rooms are different colours?
- How long does it take to paint three bedrooms?
- Is a 3 bedroom house a standard size?
- Should I paint the ceilings in all three?
- How much trim is there in three bedrooms?
The bedrooms in a 3 bedroom house take about 9.75 gallons between them in two coats, and roughly 42 labour hours. A whole 3 bedroom interior comes to somewhere between 25.25 and 35.50 gallons depending on the size of the house around them.
The useful thing about a 3 bedroom house is that it is not three of the same room. It is one larger room and a pair of smaller ones, and that shapes how the work is planned.
The three rooms are not three of the same thing
| Room | Size | Wall (sq ft) | Ceiling (sq ft) | Trim (lin ft) | Gallons | Hours |
|---|---|---|---|---|---|---|
| Master bedroom | 15 by 13 ft | 434 | 195 | 48 | 3.35 | 15.6 |
| Bedroom x 2 | 13 by 11 ft | 764 | 286 | 88 | 5.60 | 25.3 |
| All 3 bedrooms | 1,198 | 481 | 136 | 9.75 | 42 |
The master takes 3.35 gallons on its own against 2.80 for each of the smaller rooms, and 15.6 hours against 12.7. That is close to a third of the bedroom work in a single room, which matters when you are deciding what to tackle first and how much of a day to allow.
Sequencing three rooms
With three bedrooms there is almost always one you can empty completely and one you cannot. The order that works is to start with the room nobody is sleeping in, finish it fully including trim, and use it as the place everything else gets moved into while the other two are done.
That is worth more than it sounds. The alternative, working on all three at once with furniture shuffled between them, means every room is half usable for the whole job and nothing is finished until the end.
| Scope, bedrooms only | Gallons at two coats | Notes |
|---|---|---|
| Walls only | 6.50 | Fastest. Cutting in against existing ceilings and trim |
| Walls and ceilings | 9.00 | Same product. Ceilings are slower per square foot overhead |
| Bedrooms complete | 9.75 | Adds 136 linear feet of trim, 4 doors and 6 windows |
The pair of smaller bedrooms is where batching applies. They are close enough in size and usually similar enough in condition to treat as one unit: same day, same tray, same tin. The master is its own session.
The colour question in a family house
Three bedrooms are often three different colours, especially with children in the house, and that changes the buying maths considerably. One colour across all three means 9.00 gallons in a single purchase. Three colours means three separate smaller quantities, which costs more per gallon and leaves you with three part tins.
If the rooms are going different colours, the ceilings usually are not. Keeping a single ceiling white across all three lets you buy that quantity together even when the walls are split, which recovers some of the efficiency.
Sheen is worth settling at the same time. A wipeable finish in a child’s room is a different product from a flat finish in a guest room, and the paint sheen guide covers what actually differs between them.
Why three bedrooms is not a size
Three bedrooms is the most common description on the market and the least informative. It is applied to houses that differ by hundreds of square feet of living space, and it is the living space that carries most of the paint. The bedrooms are the stable part of the estimate.
| Whole house size | Rooms | Paintable surface (sq ft) | Gallons, full interior | Labour hours |
|---|---|---|---|---|
| 1,300 sq ft | 9 | 4,383 | 25.25 | 110 |
| 1,600 sq ft | 10 | 4,894 | 28.25 | 121 |
| 1,900 sq ft | 13 | 6,171 | 35.50 | 153 |
The bedrooms above are the part you can pin down from the description alone. Everything in that table moves with the house, which is why a figure quoted purely off a bedroom count has to be a range.
To replace the estimate with your own measurements, the interior painting calculator takes room dimensions directly, and the bedroom calculator handles a single room if you are only doing one.
Frequently asked questions
How much paint for a 3 bedroom house?
The three bedrooms take about 9.75 gallons between them in two coats. A whole 3 bedroom interior runs roughly 25.25 to 35.50 gallons once living space, kitchen, bathrooms and hallway are included.
How much of that is the master bedroom?
About 3.35 of the 9.75 gallons and 15.6 of the 42 hours, so close to a third of the bedroom work in one room. It is the room to allow a full session for rather than fitting around the others.
What order should I paint three bedrooms in?
Start with whichever room can be emptied completely, finish it including trim, then use it to store furniture while the other two are done. Working on all three at once leaves every room half usable for the whole job.
Does it cost more if the rooms are different colours?
Yes, usually. One colour across all three is 9.00 gallons in a single purchase. Three colours means three smaller quantities, a higher price per gallon, and three part tins left over. Keeping the ceilings a single white recovers part of that even when the walls differ.
How long does it take to paint three bedrooms?
Around 42 labour hours complete with trim in two coats. For two people that is roughly 2.6 days, plus drying time between coats and whatever the furniture situation adds.
Is a 3 bedroom house a standard size?
No. The bedrooms are reasonably consistent, but the house around them is not, and that is where most of the paint is. The range table above shows the same three bedrooms in houses of quite different total size.
Should I paint the ceilings in all three?
If you are doing the walls, usually yes. The bedrooms contribute 481 square feet of ceiling and take the same product as the walls, so it is gallons rather than a separate purchase. Doing them later means protecting the fresh walls again.
How much trim is there in three bedrooms?
About 136 linear feet, plus 4 doors and 6 windows. It is only 0.75 gallons but a large share of the 42 hours, because every inch of it is cut in by hand rather than rolled.
