In this article
- Room by room, so you can adjust it
- Buy for the house, not room by room
- How the coat count changes the total
- If you are hiring this out instead
- Where a small house still surprises you
- Frequently asked questions
- How many gallons of paint for a 1,000 square foot house?
- Is it cheaper to buy a five gallon bucket?
- Why does my small house need almost as much paint as a bigger one?
- Do I need to paint the ceilings?
- How much extra paint should I buy?
- Can I do this myself in a weekend?
- How much of the total is trim paint?
- Does this figure include primer?
A 1,000 square foot house needs about 17.25 gallons to repaint the whole interior in two coats. Walls on their own are roughly 12.25 gallons. That is one shopping trip, and it is a good deal less than most people end up buying.
Houses this size are where over-buying happens most, because the instinct is to think in rooms and round each one up. Six rooms rounded up individually can put three or four unnecessary gallons in the garage. Everything below is worked from a stated room mix so you can check it against your own house rather than trusting a rule of thumb.
Room by room, so you can adjust it
This assumes 6 rooms totalling 858 square feet of actual room floor. The gap between that and 1,000 is closets, circulation and the thickness of the walls, none of which you paint as a room.
| Room | Size | Wall (sq ft) | Ceiling (sq ft) | Trim (lin ft) | Gallons | Hours |
|---|---|---|---|---|---|---|
| Living room | 16 by 14 ft | 455 | 224 | 60 | 3.62 | 17.5 |
| Kitchen | 13 by 11 ft | 397 | not painted | 55 | 2.12 | 9.7 |
| Master bedroom | 15 by 13 ft | 434 | 195 | 48 | 3.35 | 15.6 |
| Bedroom | 13 by 11 ft | 382 | 143 | 44 | 2.80 | 12.7 |
| Bathroom | 9 by 7 ft | 236 | 63 | 30 | 1.59 | 6.9 |
| Hallway | 18 by 5 ft | 354 | 90 | 70 | 2.37 | 12.3 |
| Whole house | 2,258 | 715 | 307 | 16.00 | 76 |
Two things stand out in that table. The hallway is small in floor area and carries 70 linear feet of trim, more than any bedroom, because it is nothing but door casings. And the kitchen contributes no ceiling, since kitchen ceilings are usually left alone when the cabinets are staying.
Buy for the house, not room by room
The same wall colour running through several rooms comes out of the same container. If you price each room separately and round each to the next whole gallon, you pay for the rounding 6 times over instead of once.
Work out the total paintable area first, convert to gallons once, then round. For this house that is 2,973 square feet of wall and ceiling, which at two coats is 16.00 gallons.
| Item | Quantity | Why |
|---|---|---|
| Wall and ceiling paint | 3 x 5 gallon buckets | One tint batch, which is what keeps the colour consistent room to room |
| Wall and ceiling paint, balance | 1 x 1 gallon | Tops up the buckets to the 16.00 gallons needed |
| Trim enamel | 2 x 1 gallon | Different product from the wall paint, bought separately |
| Primer | As needed | Only for bare or repaired surfaces, stains and large colour changes. Not a routine coat |
| Sundries | Per job | Tape, filler, caulk, abrasives, sheets, roller sleeves and brushes |
One spare gallon of the wall colour is enough at this size. It covers a missed patch and it is what you touch up with over the next few years. More than that tends to sit in the garage until it has gone off.
How the coat count changes the total
Two coats is the normal specification and what every figure on this page assumes. It is worth seeing what the alternatives do, because coat count moves the total more than any other single decision.
| Coats | Gallons, full interior | When it applies |
|---|---|---|
| 1 coat | 8.75 | Only realistic over a similar colour on sound, previously painted walls |
| 2 coats | 17.25 | The normal specification, and what every figure here assumes |
| 3 coats | 26.00 | Strong colour changes, deep reds and yellows, or covering a dark wall |
The third coat is not a luxury item. Going from a dark wall to a light one, or covering a strong red or yellow, genuinely needs it, and no area calculation predicts that. How many coats of paint do I need covers when to expect it.
If you are hiring this out instead
At this size the fixed costs of a painting job matter more than the area does. Travelling to site, protecting floors, setting up, cleaning down and invoicing cost roughly the same whether the house is 1,000 square feet or 2,500. So the price per square foot on a small house always looks high. That is arithmetic rather than a painter being greedy, and it is why a minimum job charge exists.
The whole job here is around 76 labour hours, or roughly 4.7 days for two painters, so it is a genuine week of work rather than an afternoon. If you are getting quotes, ask what paintable area they have priced. A painter who can tell you is working from measurements; one who cannot is working from the listing.
Where a small house still surprises you
Bathrooms and utility spaces punch above their size. They are small in area but slow, because almost everything in them is an edge: around the vanity, the cistern, the window reveal, the door casing. The 307 linear feet of trim in this house takes far longer than its 1.25 gallons suggest.
The other one is texture. A textured or heavily filled wall has more real surface than its measured area, and bare or repaired plaster will drink the first coat rather than sitting on top of it. The coverage guide explains why the spread rate on the tin assumes conditions you rarely have.
To run your own dimensions rather than this room mix, the house painting calculator takes them directly and uses the same coverage figures as this page.
Frequently asked questions
How many gallons of paint for a 1,000 square foot house?
About 17.25 gallons for the full interior in two coats, made up of 16.00 for walls and ceilings and 1.25 for trim. Walls only, leaving ceilings and trim alone, is closer to 12.25 gallons. That covers 2,973 square feet of paintable surface across 6 rooms.
Is it cheaper to buy a five gallon bucket?
Usually, and for a house this size 3 bucket plus 1 single gallon covers the walls and ceilings. The larger benefit is batch consistency: paint mixed in one container cannot show the slight shade variation that separate cans occasionally do along a long wall.
Why does my small house need almost as much paint as a bigger one?
Because paint follows wall area, and wall area follows the perimeter of each room rather than the floor area. A small house divided into many small rooms has a lot of perimeter for its size. Two houses of identical floor area can differ by several gallons purely on how they are divided up.
Do I need to paint the ceilings?
Not necessarily, and skipping them is the biggest single saving available at this size. Ceilings here are 715 square feet. If they are clean and still white, doing walls and trim only is a reasonable choice, though fresh walls do tend to make a tired ceiling obvious.
How much extra paint should I buy?
One spare gallon of the wall colour. It covers the patch you missed, and it is your touch up supply for the next few years. Buying two or three spare at this size is money left on a shelf.
Can I do this myself in a weekend?
Not the whole interior. At around 76 labour hours this is roughly 4.7 days for two people working full days, before drying time between coats. A single room over a weekend is realistic. The whole house is not.
How much of the total is trim paint?
Only 1.25 gallons of the 17.25, but it is a separate purchase because trim enamel is a different product from wall paint and will not come out of the same tin. It also takes a disproportionate share of the hours, since all 307 linear feet of it is cut in by hand.
Does this figure include primer?
No. The 17.25 gallons is finish paint in two coats. Primer is extra product on top and is only needed where the surface calls for it: bare or repaired plaster, water or smoke staining, or a large colour change. Priming a sound previously painted wall is usually wasted.
