To take off baseboard from a floor plan, measure every wall where base will run, subtract the door openings it stops at, total the linear feet per room, then divide by the length of the pieces you buy and round up, with an allowance for corners and cutting. On a PDF plan, that means setting the scale first and tracing the wall runs rather than adding dimension strings by hand. MeasureSet, a Windows app from Automata Labs, sets the scale from a printed dimension, measures lengths along walls, deducts openings, applies your waste percent and exports the totals per room to Excel, so the base, the shoe and the paint all come from the same measurements.
This guide walks through the method, a worked example, and the details that make a base count come out short.
Trace the base runs once and get linear feet per room, with openings deducted, in Excel.
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What counts as a baseboard run?
Base runs along every wall that meets a finished floor, and stops wherever something else meets the floor:
| Include | Leave out |
|---|---|
| Every wall in finished rooms, including closets if they get base | Door openings, measured between the casings |
| Short returns around columns, bulkheads and stair walls | Areas where cabinets, tubs or built-ins sit against the wall |
| Both sides of a partition when both rooms get base | Walls that get a different trim, such as tile base in a bathroom |
| Window walls, since base runs below windows | Garage and unfinished areas, unless specified |
Lowe’s guide to installing baseboards notes that baseboard that butts against a door casing is cut square at 90 degrees, which is why the opening comes out of the count: the base stops at each side of the casing.
How do you measure baseboard from a PDF plan?
- Check the scale. Calibrate each sheet from the longest printed dimension you can find, then check a second dimension. A reduced print or a sheet marked not to scale throws every length off. Our guide to setting scale on a PDF drawing covers the details.
- Trace the runs. Measure along the walls of each room, stopping at each door opening. On a plan with walls drawn as two lines, measure on the room side, since that is where the base goes.
- Deduct what you traced through. If you traced a full room perimeter, subtract each door opening.
- Total per room. Keep rooms separate. Different rooms often get different profiles or heights, and per-room totals make the order and the install plan easier.
- Convert to pieces. Divide each total by the stock length you buy and round up. Then add your allowance.
How much extra baseboard should you order?
There is no single standard percentage. Lowe’s suggests purchasing an extra piece of baseboard to account for mistakes made during cutting, and for each wall with outside corners, adding about 6 to 12 inches to the measurement, because mitered outside corners use more length than the wall itself.
In practice, the allowance depends on the room:
| Room | Why it needs more |
|---|---|
| Many outside corners (bulkheads, columns, bay walls) | Each miter uses extra length, per Lowe’s guidance |
| Many short runs | Offcuts shorter than the next run are waste |
| Walls longer than your stock length | A joint is needed, and where it falls decides which offcuts are usable |
Use the allowance your crew’s history supports, and apply it the same way every time so bids stay comparable.
Give the base label your own waste percent once, and every run follows it.
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What does a worked example look like?
A 12 x 14 ft bedroom with one 3 ft door opening and a closet that does not get base:
| Step | Calculation | Result |
|---|---|---|
| Perimeter | 2 x (12 + 14) | 52 ft |
| Door opening | 52 - 3 | 49 ft |
| Outside corners | None in this room | 49 ft |
| Pieces, 16 ft stock (if that is what your supplier stocks) | 49 / 16 = 3.06, round up | 4 pieces |
| Cutting allowance | One extra piece, per Lowe’s suggestion | 5 pieces |
Now check it by wall. The walls are 12, 14, 12 and 14 ft, and the door splits one 12 ft wall into two short runs, say 4 ft and 5 ft. With 16 ft pieces, each full wall takes one piece with an offcut, and the two short runs come out of one more piece: four pieces, plus the spare. Here the totals agree, but in rooms with walls just over your stock length, the per-wall check often adds a piece the simple division misses.
If shoe moulding or quarter round runs along the base, it usually follows the same runs. Lowe’s lists quarter round as a finishing step where baseboard meets the floor. Measure it on its own label so it can have its own allowance.
How does MeasureSet speed this up?
MeasureSet is PDF takeoff for flooring, paint, drywall and concrete bids, and baseboard is a length on the same plans:
- Scale from the plan. It reads the printed scale and offers it, or you calibrate by clicking both ends of a known dimension and typing its length. Standard architectural, engineering and metric scales are available.
- Length and segment tools. Trace runs along walls; points snap to walls and lines.
- Deductions. Tick Deduct from the total on a label for openings.
- Waste per label. Give the base label a waste percent, and every mark with that label follows it.
- Rooms. Room names are read from the plan, and Excel gets a room schedule. The room tool measures a closed room wall to wall, even where walls are drawn as two lines.
- Export. Excel with blank price columns, CSV, and a marked-up PDF with the totals. Totals are kept per sheet and for the whole set.
The Microsoft Store listing also describes order units: give a label a unit and what one unit covers, and the totals show what to order, such as cartons, gallons, sheets or cubic yards. Set your stock length on the base label during the free trial and confirm the piece count against the arithmetic above, or divide the linear feet in Excel next to your prices.
Because the same marks carry wall heights, the base runs you trace sit alongside the wall area for paint. Our guide to estimating paint gallons from a floor plan uses the same method for walls.
Where do baseboard counts go wrong?
- Scale not checked. One wrong calibration and every room is off by the same ratio.
- Doors not deducted, or deducted twice. Pick one method (trace through or stop at openings) and keep it.
- Both sides of partitions forgotten. A wall between two finished rooms gets base on both faces.
- Revisions. A moved wall in a reissued plan changes the count. MeasureSet can compare a revision in red and blue so you can see what moved before you update the takeoff.
Frequently asked questions
Do you subtract windows when measuring baseboard?
No. Base runs below windows along the floor, so window walls are measured at full length.
Do you subtract doors?
Yes. Base stops at each side of the door casing, so subtract the opening between the casings.
How do I convert linear feet to pieces?
Divide the linear feet by the length of the stock you buy and round up, then add your cutting allowance. Check rooms with long walls wall by wall.
Can MeasureSet price the job?
No. It is a takeoff ruler: it measures and totals, then hands the quantities to Excel or CSV for your own pricing. There are no assemblies and no cost database.
Try MeasureSet
MeasureSet is a one-time purchase in the Microsoft Store with a free trial. Take off the base on your next set of plans and compare the count with your usual method. More detail is on the MeasureSet product page.
PDF takeoff for finish trades: lengths, areas and counts, exported to Excel. No account, no upload.
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Lowe’s is a trademark of its owner. MeasureSet is not affiliated with Lowe’s.
Last updated 20 October 2026. Published by Automata Labs, a software company in Canada.