Interiors
Baseboard installation cost
Baseboard is sold in sticks of 8, 12, 14 and 16 feet, so the amount you buy is decided by how long each wall is — not by the total. Four 9 ft walls need four sticks even though thirty-six feet divides into three of them, because a 7 ft offcut fits nothing in that room. This builds the cut list first and prices it second.
Written and edited by Pablo Ruiz Quintero
Last reviewed 2026-09-21 · Nothing you type leaves your browser
The walls, not the square footage
Baseboard is sold in sticks of 8, 12, 14 and 16 feet, so what you buy is decided by how long each wall is — not by the total. A 13 ft wall cannot come out of a 12 ft stick, and four 9 ft walls need four sticks however you divide the footage.
A plain rectangle: four walls, four inside corners.
Wall to wall.
The other way.
Openings to deduct
The baseboard stops at the casing, not at the opening — so each door takes its own width plus the jamb and the casing on both sides. That is about five inches more per door than most people subtract.
Anything with a door in it.
Deducts 38.5 in each, with the jamb and casing.
An archway or a wide opening with no door in it.
The opening itself; we add the casing.
What you are fitting
The size most people mean by taller baseboard. It suits an eight or nine foot ceiling and it hides an uneven floor better than the standard does.
Cheapest, dead straight, takes paint beautifully and has no grain to fight. It also drinks water: one leak, one mopped floor, one damp basement wall and the bottom edge swells and never goes back.
The small strip along the floor. It hides a floor that is not flat, and it is what makes a retrofit look intentional.
Pulling and disposing of what is there now, and scraping the caulk line off the wall.
Primed and painted on sawhorses, then nail holes and one coat in place. It is the single biggest saving in the finishing hours.
Baseboard is one of the few trim jobs genuinely worth doing yourself — as long as you cope the inside corners.
Used only to pick a regional labour rate. It stays in your browser.
4 sticks, fitted
$506
45.6 ft on the wall · 52 ft bought · $11 a foot
1 × 16 ft, 2 × 14 ft, 1 × 8 ft
Dividing 45.6 ft by 16 would have said 3 sticks, and you would have been 1 short. An offcut is only worth something if there is a wall short enough to take it.
How the run adds up
The offcut here is a real figure rather than a ten per cent rule of thumb — it is what is genuinely left over once every wall has been cut from a stick that exists.
The cut list, stick by stick
Longest wall first, and every offcut tried on the next wall before a new stick is opened — which is exactly the order a carpenter works in.
The order at the counter
- 4¼ in MDF, 16 ft
The long sticks, for the walls that need them. Order these first — they are the ones that go out of stock.1 - 4¼ in MDF, 14 ft
Matched to the shorter walls, so the offcut stays small.2 - 4¼ in MDF, 8 ft
Matched to the shorter walls, so the offcut stays small.1 - Base shoe or quarter round
Quarter round or base shoe, the small strip along the floor. It is what hides a floor that is not flat, and the rule that matters is that it is nailed to the baseboard and never to the floor — a floating floor has to move under it. Given in feet rather than sticks because it is small enough to join anywhere — a splice in a ¾ in quarter round disappears, which is not true of the baseboard above it.51 ft - Brads, caulk and filler
The caulk is the part that matters: a bead along the top edge is what makes a wall that is not flat read as a straight line.$10
What it costs
National average. 4¼ in MDF with base shoe, fitted, old trim removed, filled and caulked. Not included: the paint itself, and any drywall repair behind what comes off.
$11 a linear foot all in, which is the number to hold a quote against — most are given that way. Material is $75 of it; the rest is labour, and labour is where the coping lives. If any of this run is in a bathroom, a laundry or a basement, price that part in PVC instead: MDF swells there and does not come back. And if the floor is being replaced too it goes down first — see the flooring page.
Worth knowing
- 4 sticks — 1 × 16 ft, 2 × 14 ft, 1 × 8 ft — for 45.6 ft of finished baseboard. Trim is sold by the stick and not by the foot, and that is the whole difference between this number and the one you get by dividing.
- Dividing 45.6 ft by 16 would say 3 sticks. It is 1 short, because an offcut only helps if there is a wall it fits — a remainder of a few feet is worth nothing in a room whose shortest wall is longer than that. It is the shortfall people discover halfway through the second afternoon.
- Inside corners get coped, not mitred. You have 4 of them. A mitred inside corner opens as the wood shrinks — and it shrinks every winter the heating comes on — leaving a gap you can see from the doorway. A coped joint has one piece cut to the profile of the other, so it closes as it moves instead of opening. It is slower and it is the single visible difference between a trade job and a weekend one.
- MDF is not for anywhere that gets wet. MDF in particular drinks water through its cut ends: one leak, one over-enthusiastic mop, one damp basement wall, and the bottom edge swells and never comes back down.
- Base shoe is nailed to the baseboard, never to the floor. A floating floor has to be free to move underneath it, and pinning the shoe down is how a laminate floor ends up with a gap in the middle of the room instead of at the edges where it belongs.
On this page — 5 sections
Trim is sold in sticks, and that changes the answer
The short version
- Baseboard comes in 8, 12, 14 and 16 ft lengths. What you buy is decided by how long each wall is, not by the total.
- Four 9 ft walls need four sticks, even though 36 feet divides into three 16-footers. The 7 ft offcut fits nothing in that room.
- Inside corners are coped, not mitred — a mitre opens as the wood shrinks, and it shrinks every winter.
- Each door takes about 39 in, not 32, because the baseboard dies into the casing rather than the opening.
Every baseboard calculator on the internet does the same thing. Perimeter, minus the doors, divided by the stick length, rounded up. It is arithmetic anybody could do on a phone, and it is wrong often enough to matter.
Here is the case that breaks it, and it is not exotic — it is a bedroom.
The problem is that linear feet are fungible and sticks are not. Thirty-six feet of material exists in those three sticks; it is simply not in pieces long enough to be useful. Estimating by the foot treats trim as though you could pour it.
So the calculator above does what a carpenter does instead. It takes each wall, longest first, and looks for an open stick with enough left on it. If there is one, the piece comes out of that offcut. If there is not, it opens a new stick — and it opens the shortest one the piece will fit on, because nobody buys everything in sixteens when half the walls are eight feet.
What comes out is a cut list: which sticks to buy, what comes off each one, and what is genuinely left over. The waste figure is a real number rather than a ten per cent rule of thumb, and it can be anywhere from three per cent to over twenty-five depending entirely on how your walls happen to line up.
8–16 ft
The lengths it comes in
And 14 is the one shops forget to stock
39 in
What a 32 in door deducts
Door, jamb and casing both sides
3–25%
Real offcut range
Not 10 per cent — it depends on your walls
1½ in
Cut allowance per piece
Everything is cut long and crept up on
MaterialsEstimator, Baseboard, casing and trim price survey · checked 2026-09-21
Why inside corners are coped and not mitred
This is the other thing worth knowing before you buy anything, because it decides how long the job takes and it is most of what separates a good result from a disappointing one.
A mitred inside corner is two pieces cut at 45° meeting on the corner. It looks perfect the day it goes in. Then the heating comes on, the air dries out, and the wood gives up moisture and shrinks across its width. The two mitred faces slide apart, and the joint opens into a fine dark line that runs the whole height of the profile.
A coped joint does not do this. One piece runs into the corner cut square, sitting flat against the wall. The second piece has its end cut away to the exact profile of the first, so it sits over the face of it like a hand over a hand. When the wood moves, the coped piece slides across the face of the square one and the joint stays shut. It does not open, because there is no joint line to open — there is an overlap.
| Mitred inside corner | Coped inside corner | |
|---|---|---|
| Looks right on day one | Yes | Yes |
| Looks right in February | Opens into a line | Closes on itself |
| Forgives a corner that is not 90° | No — the error doubles | Yes, that is the point |
| Time per corner | Two minutes | Five to ten, until you have done twenty |
| Skill | Measuring | A real skill, learned in an afternoon |
| What the trade does | Only on outside corners | Every inside corner |
USDA Forest Products Laboratory, Wood Handbook — Wood as an Engineering Material, Chapter 4: Moisture Relations and Physical Properties · checked 2026-09-21
MDF, pine, poplar, oak — and where each one is wrong
The material decides roughly half the material cost and almost none of the labour, so the temptation is to go cheap. That is usually right, with one exception that is not negotiable.
| Material | Relative price | Stain | Wet rooms | What it is |
|---|---|---|---|---|
| MDF | ×1 | paint | no | Cheapest, dead straight, takes paint beautifully and has no grain to fight. It also drinks water: one leak, one mopped floor, one damp basement wall and the bottom edge swells and never goes back. |
| Finger-jointed pine | ×1.5 | paint | no | Short lengths glued end to end, so it is straight and stable and cheap. Paint only — the joints telegraph through any clear finish. |
| Solid pine | ×2.1 | yes | no | Can be stained, dents easily, and it is the species that moves most with the seasons — which is exactly why the inside corners get coped. |
| Poplar | ×2.6 | paint | no | The trade's paint-grade hardwood. Harder than pine so it survives a vacuum cleaner, straight, and it takes a crisp edge. Green streaks mean it is not for staining. |
| Red oak | ×3.2 | yes | no | For staining, and usually chosen to match an oak floor. Hard on blades, hard on nails, and open-grained enough that it needs filling if you ever paint it. |
| PVC or composite | ×2.4 | paint | yes | The right answer in a bathroom, a laundry or a basement. It does not care about water at all, it cuts like softwood, and it expands lengthways with heat — which is why it wants gaps at the ends rather than a tight fit. |
The other constraint is the one people meet after they have chosen: baseboard dies into door casing, so it cannot be taller than the casing is wide without looking wrong. Going from 3¼ to 5¼ inch baseboard on a house with 2¼ inch casing means either living with the baseboard running past the casing edge, or replacing the casing too. That is a whole-trim job, and it is worth knowing before the sticks are ordered rather than after.
What it costs, and what the quote should include
Trim is quoted by the linear foot, which makes comparison easy and makes it very easy to compare two quotes that are not for the same work. Here is what the foot is made of.
| Per linear foot | Typical | What it is |
|---|---|---|
| Taking the old off | $1.05 | Pulling it, drawing the nails, scraping the old caulk line, taking the waste away. |
| Fitting | $3.8 | Measuring, cutting, coping, nailing. The coping is why this is not a labourer rate. |
| Filling and caulking | $1.9 | Nail holes, the bead along the top edge, and the final coat in place. It is where the finish comes from. |
| Painting beforehand | $0.9 | On sawhorses, both faces. Cheap, and it removes most of the work from the previous line. |
| Per outside corner | $11 | Two mitres that have to meet on a proud edge at eye level, on a corner that is not 90°. |
Questions that tell you which quote is real
- Is removal and disposal of the old trim in this price, or is that separate?
- Are the inside corners coped or mitred? The answer tells you a great deal about everything else.
- Is the baseboard primed and painted before fitting, or painted in place afterwards?
- Is caulking the top edge included, and is the final coat included with it?
- Who fills the nail holes, and is that before or after the last coat?
- What happens if the drywall behind the old baseboard is damaged — is a repair allowance in there?
- Is base shoe included, and if the floor is floating, is the shoe being nailed to the baseboard?
- Does the new height clear the existing door casing, or does the casing have to change too?
One number worth holding on to: on a fitted job, the material is usually the smaller half. That makes the material choice less important than it feels and the corner count more important than it looks — a room with six inside corners and two outside ones costs meaningfully more to trim than a plain rectangle of the same perimeter, and no per-foot quote will show you that.
What goes wrong
01Ordering by linear feet
Sticks are 8, 12, 14 and 16 feet, and an offcut is only worth something if a wall is short enough to take it. Four 9 ft walls need four sticks, not the three that 36 ÷ 16 suggests.
Instead — Measure each wall separately and build a cut list. It also tells you which lengths to order, which a footage number never can.
02Mitring the inside corners
The wood shrinks every heating season, the two faces slide apart, and the joint opens into a dark line down the whole profile. Caulk hides it once and then cracks.
Instead — Cope them. One square piece into the corner, the other cut to its profile and sitting over the face. It closes as it moves instead of opening.
03Cutting outside corners at 45°
Almost no corner in a house is exactly 90°. A 92° corner cut at 45 leaves a wedge-shaped gap on a proud edge at eye level, which is the worst place in the room to have one.
Instead — Check each outside corner with an angle finder and cut at half of what you find. The tool costs less than a stick of oak.
04Putting MDF in a bathroom
It absorbs water through cut ends and pinholes, swells along the bottom edge and never recovers. It is not a maintenance problem, it is a replacement.
Instead — Use PVC or composite in bathrooms, laundries and basements. Same profile, same tools, no difference visible once painted.
05Butting two sticks together on a long wall
Wood shrinks along its length too. Two square ends pull apart and leave a gap in the middle of a run, in the open, where nothing hides it.
Instead — Scarf it — two overlapping 45° cuts, glued, landing on a stud. The overlap slides as it moves and the joint stays shut.
06Painting it after it is fitted
It means cutting in against the floor and against the wall along every foot, twice, on your knees. It is most of the finishing hours on the job.
Instead — Prime and paint on sawhorses, fit, fill the nail holes, caulk the top edge, one final coat. Same finish, a fraction of the time.
07Nailing the base shoe to the floor
A floating floor has to move underneath it. Pin the shoe down and the floor opens a gap somewhere in the middle of the room instead of at the edge where the shoe would have hidden it.
Instead — Nail the shoe into the baseboard, angled slightly downward. It holds perfectly well and the floor stays free.
08Choosing a height taller than the casing is wide
Baseboard dies into door casing. Taller baseboard has nowhere to land and runs past the casing edge, which reads as a mistake from across the room.
Instead — Check the casing width before choosing the baseboard height. If you want tall baseboard, the casing changes too — and that is a whole-trim job to budget for, not a surprise.
- 01Measure every wall separatelyNot the perimeter. A list of wall lengths is the only input that can produce a correct order, because sticks come in fixed lengths and the total tells you nothing about which ones to buy.
- 02Deduct the openings properlyBaseboard dies into the door casing, not into the opening. Each door takes its own width plus the jamb and the casing on both sides — about five inches more per door than most people subtract.
- 03Match sticks to walls, longest firstThen try each offcut on the next wall before opening a new stick. That is the whole of the estimating problem, and it is what the calculator above does.
- 04Check every corner with an angle finderAlmost none of them are 90°. Outside corners get cut at half of whatever the corner really is, and being one degree out shows at eye level.
- 05Prime and paint before fittingOn sawhorses, both faces. Then fit, fill the nail holes, caulk the top edge, and one final coat. Painting it in place means cutting in along every foot twice.
- 06Cope the inside cornersOne piece goes in square to the wall; the other is cut to its profile and sits over it. It closes as the wood shrinks rather than opening.
- 07Nail into studs, top and bottomTop nail pulls the board to the wall, bottom nail pulls it to the plate. Into drywall alone it holds nothing and will move.
Order matters: the floor goes down first, then the baseboard over it, and the base shoe last. Doing it the other way round means either an undercut everywhere or a gap you cannot hide. That page works out boxes and racking waste for the floor itself.
If the floor is going in too- Stick
- One length of moulding as it is sold — 8, 12, 14 or 16 feet. It is the unit that actually gets bought, and the reason a linear-foot estimate and a real order are different numbers.
- Cope
- Cutting the end of one piece to the exact profile of the piece it meets, so it sits over the face of it. It is how inside corners are done, and it is the visible difference between trade work and weekend work.
- Scarf joint
- Where two sticks meet along a wall too long for one. Two overlapping 45° cuts, glued, landing on a stud — so the joint slides over itself as the wood moves instead of opening into a black line.
- Base shoe
- The small quarter-round strip along the floor. It hides a floor that is not flat, and it is nailed to the baseboard rather than to the floor so a floating floor can still move.
- Reveal
- The sliver of casing edge left showing where one piece of trim dies into another, usually an eighth to a quarter inch. Without it, two pieces meeting flush read as a mistake rather than a detail.
- Return
- A small mitred piece that turns the end of a run back into the wall, so the profile is never left open. It is what should happen where baseboard stops at a hearth or a cased opening.
- MDF
- Medium-density fibreboard. Dead straight, cheap, takes paint perfectly, and it drinks water through its cut ends — which is why it does not belong in a bathroom or a basement however good the price is.
- Finger-jointed
- Short lengths of softwood glued end to end into a long stick. Straighter and cheaper than solid wood and completely stable, and paint-only, because the joints show through any clear finish.
- Kerf
- The width of material a saw blade removes, about an eighth of an inch. It is why a piece is cut long and crept up on rather than cut once to the measurement.
- Caulk line
- The bead along the top edge of the baseboard where it meets the wall. It is what turns a wall that is not flat into a line that reads as straight, and it is the last thing done before the final coat.
- Nail schedule
- Where the fasteners go: into studs, top and bottom, so the board is pulled to the wall at the top and to the plate at the bottom. Nails into drywall alone hold nothing.
- Dying into
- Where a run of trim ends against a taller piece — baseboard into door casing, for instance. It is why tall baseboard forces taller casing, and why a height change turns into a whole-trim job.
Common questions
- How much does it cost to install baseboard?
- Between about $4 and $10.5 a linear foot installed, depending on the material, the height and whether the old trim has to come off first. A typical 12 by 14 ft room in 4¼ in MDF with base shoe runs a few hundred dollars fitted. The number to compare quotes on is the price per linear foot, because that is how the trade gives it — but check what it includes, since removal, caulking and painting are separately about as much again as the fitting.
- How much does it cost to replace baseboards?
- The same job plus removal, which adds roughly $1.05 a foot: pulling the old trim, getting the nails out, scraping the caulk line off the wall and taking the waste away. What moves the price is what is found behind it — torn paper, a gap the old taller baseboard was hiding, or a floor that turns out to slope. Budget for a little drywall repair and you will usually be right.
- How do I calculate how much baseboard I need?
- Measure each wall separately and deduct the openings, then match sticks to walls rather than dividing the total. This is the step every other calculator skips: baseboard is sold in 8, 12, 14 and 16 ft lengths, so four 9 ft walls need four sticks even though 36 feet fits inside three 16-footers on paper. The offcut from a 16 ft stick after a 9 ft piece is 7 ft, and in that room it is worth nothing.
- What size baseboard should I use?
- 4¼ in is the size most people mean by taller baseboard, and it suits an eight or nine foot ceiling. The builder standard is 3¼ and it reads short under anything over eight feet. The constraint nobody mentions is the door casing: baseboard dies into it, so baseboard taller than the casing is wide has nowhere to land — which is how a baseboard job quietly becomes a whole-trim job.
- Should inside corners be mitred or coped?
- Coped, always. A mitred inside corner opens as the wood shrinks — and it shrinks every winter the heating comes on — leaving a visible gap that caulk fills once and then cracks. A coped joint has one piece cut to the profile of the other so it sits over its face, and it closes as it moves instead of opening. It is slower, it is harder to learn, and it is the single clearest difference between a trade job and a weekend one.
- Is MDF baseboard any good?
- For a dry room, yes, and it is genuinely better than softwood in some ways: dead straight, no grain to fight, no knots to bleed through, and it takes paint beautifully. What it cannot do is get wet. MDF drinks water through its cut ends, and one leak or one over-enthusiastic mop swells the bottom edge permanently. In a bathroom, a laundry or a basement use PVC or composite instead and match the profile.
- Can I install baseboard myself?
- It is one of the few trim jobs genuinely worth doing yourself, on one condition: learn to cope. The straight runs are easy, the outside corners are just careful measuring, and the whole job forgives a slow pace. Coping takes a couple of practice cuts on offcuts and then it is a skill you have. What you are saving is the labour, which on this job is most of the price.
- Should I paint baseboard before or after installing it?
- Before, on sawhorses, both faces — then fit it, fill the nail holes, caulk the top edge, and give it one final coat in place. Painting it after fitting means cutting in against the floor and against the wall along every single foot, twice, on your knees. It is the single biggest saving in the finishing hours and almost nobody does it.
- How do I join baseboard on a wall longer than one stick?
- With a scarf joint: two overlapping 45° cuts rather than two square ends, glued, and landing on a stud. Two square ends butted together open into a black line the first winter because the wood shrinks along its length. A scarf slides over itself as it moves, so the joint stays shut and it is almost invisible once caulked and painted.
- What is base shoe for, and do I need it?
- It hides the gap where the baseboard meets a floor that is not perfectly flat, which is most floors. On a retrofit over an existing floor it is close to essential; on new work where the baseboard goes on before the flooring it is a style choice. The rule that matters is that it is nailed to the baseboard and never to the floor — a floating floor has to be free to move underneath it.
- How much waste should I allow for baseboard?
- Ten per cent is the usual rule of thumb and it is a guess standing in for arithmetic. The real figure depends entirely on how your wall lengths line up against the stick lengths available, and it can be anywhere from 3 per cent to over 25. The calculator above gives the actual number by building the cut list, which is both more accurate and more useful — it tells you which sticks to buy, not just how many feet.
- Do the corners in my house matter for cutting?
- Yes, and assuming 45° is the commonest cause of a bad outside corner. Almost no corner in a house is exactly 90° — drywall builds up in the corners, framing moves, and a corner reading 92° needs 46° cuts. Get a cheap angle finder, check each outside corner, and cut at half of what you find. Inside corners are coped, so they forgive the discrepancy on their own.
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About the author
Pablo Ruiz Quintero — Editor
Editor of MaterialsEstimator. Decides which documents count as a source, what every default value is, and where the line sits between what the reader parses and what the engines compute.
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