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What is a framing takeoff?

A framing takeoff is the process of measuring a set of drawings to work out how much structural material a building needs: studs, plates, sheathing, joists, beams, lintels and posts. It produces quantities, not prices. Walls and structural members are measured in linear feet; floors and roofs are measured in area. Everything else falls out of those two numbers.

That is the whole discipline. Two units of measure, applied consistently, on two drawings.

Already know the method and just want the faster way to run it? Skip to building the wall once.

Takeoff, estimate, bid: three different things

Most of the money framers lose is lost because these three get collapsed into one.

The takeoff is measurement. How many linear feet of exterior wall. How many square feet of roof sheathing. No prices involved.

The estimate is pricing. Your takeoff quantities multiplied by your material rates and your labour rates.

The bid is the number you send the client, after markup, contingency and whatever the market will bear.

A perfect estimate on a bad takeoff is a bad number. The takeoff is the layer that everything else sits on, and it is the layer most people rush. If you want the full breakdown of that distinction, we covered it in what is a quantity takeoff.

The units that run framing

Every framing item you will ever take off is measured one of four ways:

Get those four right and the takeoff is done. Everything after that, how many studs, how many sheets, how many nails, how many hours, is arithmetic you do once per wall type and then reuse forever.

That last sentence is the whole point of this article, and we will come back to it.

Step 1: Start on the floor plan

The floor plan is where you get lengths. Not heights. Lengths.

Work around the perimeter of the structure first, measuring to the outside face of sheathing, because that is how long your plates will actually run and that is where your sheathing terminates. If you measure to the inside face of the studs you will be short on plates and short on sheathing on every single wall.

Scale each run, and here is the habit that separates people who bid fast from people who re-scale the same drawing four times: write the dimension on the plan the moment you take it.

Do it in a consistent colour. One colour for wall lengths, one for structural, one for anything you have queried with the architect. When you come back to that sheet in three weeks because the client changed a window, you do not re-measure the building. You read your own notes.

Why annotate? The takeoff itself is rarely the bottleneck. Going back later to remember why something was measured a certain way, or whether a revision changed the scope, is what actually burns days. The dimensions belong on the drawing, permanently, next to the thing they describe.

Step 2: Measure walls in linear feet, grouped by wall type

Here is the mistake that makes framing takeoffs take three times longer than they should. People measure walls one at a time and price them one at a time.

You do not have thirty walls. You have four or five wall types, repeated thirty times.

A typical two-storey house has something like:

W1 is exterior 2x6 load-bearing at 16" o.c.

W1a is the same wall, fire-rated assembly (party wall, garage separation).

W2 is the exterior gable end.

P1 is an interior partition, 2x4 at 16" o.c., non-load-bearing.

P3 is an interior plumbing wall, 2x6.

P4 is a knee wall or stair wall.

So the takeoff is this. Work around the plan, and for every run of wall, record its length against its type. Not against its location.

That is a complete wall takeoff for a house, and it fits in a text box. Notice the heights are attached to the lengths. That matters, and it is Step 3.

Step 3: Get your wall heights off the section, not the plan

The floor plan cannot tell you how tall a wall is. This is the single most common gap in a framing takeoff, and it is why people order 8' studs for a 9' wall and find out on site.

Flip to your building sections. Scale from top of subfloor to the underside of the top plates, then deduct 1.5" for the bottom plate. That is your stud length.

Be precise about which stud that lands you on, because a precut and a full 8-footer are not the same wall:

A 92 5/8" precut plus three plates gives a 97 1/8" finished wall height.

A 96" (8'-0") stud plus three plates gives a 100 1/2" finished wall height.

A worked reading of a typical section:

Main floor, subfloor to underside of top plate is 7'-10.5", so a 93" stud height, so an 8' stud trimmed.

Second floor, low side, the same: an 8' stud.

Second floor, high side where the roof slopes up, 9'-6", so a 10' stud.

Now go back to your plan and write the heights on it, so the walls that need 10' studs are visually obvious. On the example above, two runs of second-floor W1 need 10' material and one run needs 8'. If you miss that, you have priced 50 linear feet of wall at the wrong stud cost and you are 20% short on sheathing area. You need 25% more than you ordered.

Tall walls: what the code actually says

The "walls over 10 feet need an engineer" rule you hear on site is half right, and the half that is wrong costs money in the other direction. You pay for engineering you do not need.

Under the IRC, Table R602.3(5) caps bearing wall studs at 10 ft for 2x4 and 2x6 (3x4 and 2x5 go to 12 ft). But nonbearing walls are prescriptive far higher: 14 ft for 2x4 and 20 ft for 2x6. A 12 ft non-load-bearing great-room or stair wall is comfortably inside the table.

Even bearing walls do not automatically stop at 10 ft. Exception 2 of R602.3.1 allows 2x6 bearing studs to 18 ft at 16" o.c., or 20 ft at 12" o.c., within stated tributary-load and wind limits.

Which of those applies depends on your code edition, jurisdiction, species and load, so check before you price. Two practical consequences. First, a spacing change from 16" to 12" o.c. moves your stud count by a third. Second, tall walls are normally built in one piece rather than spliced at mid-height, because a splice creates a hinge point, and that affects the stud lengths you can actually buy.

Step 4: Turn linear feet into sticks

You now have linear feet and heights. Here is how each converts.

Studs

At 16" o.c. the shortcut is 0.75 studs per linear foot, plus one. At 24" o.c. it is 0.5 per foot, plus one.

Worked: a 28' wall at 16" o.c. is 28 x 12 / 16 = 21 spaces, so 22 studs before corners and openings.

Plates

Standard platform framing is one bottom plate and a double top plate, so three runs of plate material per wall.

84 linear feet of exterior wall is 252 LF of plate, which is sixteen 16-footers before waste.

Some assemblies use a single top plate with engineered connectors. If that is your detail, it is 2x not 3x, and getting it wrong is a 33% error on plate material.

Wall sheathing

Sheathed height is not nominal wall height. An "8 ft wall" framed with 92 5/8" precuts and three plates is 97 1/8" tall, which is exactly why 4x9 panels exist. And at upper floors the sheathing runs down over the floor system to close off the rim, so add the depth of the joists plus rim to your sheathed height there. Miss both and you are short on every upper-floor wall.

On openings, most estimators do not deduct anything smaller than a full sheet, which is 32 sq ft. Some tighten that to around 16 sq ft. Either threshold works. What matters is that you apply it consistently, because your waste factor is calibrated against whichever one you chose. Always deduct garage doors and full-height glazing.

The items nobody writes down

Every wall assembly also consumes framing nails, sheathing nails, subfloor adhesive, housewrap or sheathing tape, sill gasket, corner bracing or straps, and hold-downs. Individually small, collectively on the order of 3% to 7% of a framing package on a conventional job, and considerably more where a seismic or high-wind connector schedule is in play.

They are also the items most likely to be omitted entirely, because they live in the specification rather than on the drawing. Check your scope while you are at it: structural hardware is not always the framer's to supply.

Step 5: Take off floors by area

The floor plate is an area takeoff, and it feeds three things: subfloor sheathing, joists, and adhesive.

Measure the floor plate to the outside face of the sheathing, not to the inside of the wall. In platform framing, the floor system runs over the top of the wall below and the rim closes it off flush with the exterior sheathing line. Confirm this on your section before you measure. It is a one-second check that prevents a 4% to 6% area error.

A useful habit: draw a diagonal line corner to corner across the area you have just measured, and write the calculation in the middle of it. Marking the diagonal is far faster than outlining the whole perimeter, and it leaves an unmistakable visual record of which areas you have already accounted for. When you come back to the sheet you can see instantly whether you missed a bay.

Step 6: Take off the roof, and apply the slope factor

This is where most framing takeoffs are wrong, and they are wrong in the same direction every time. Short.

A roof plan is an orthographic projection. It shows you the roof as seen from directly overhead, flattened. But you do not sheath a flattened roof. You sheath the actual sloped surface, which is always larger.

Hold a square flat on the desk and it looks 12 inches wide. Tip it up towards you and it looks like six. The roof plan is showing you the tipped-up version.

The fix: multiply plan area by the slope factor

On a 12:12 roof you need 41% more sheathing than the roof plan says. On a 4:12 you need 5.4% more. If you have been eating that difference in your waste factor and wondering why your framing waste always runs high, this is why.

If your drawings give the pitch in degrees

Outside North America, roof pitch is almost always specified as an angle rather than rise over run. The maths is the same idea in a different dress:

Same rule applies either way. The plan area is always the flattened number, and it is always smaller than the roof you have to cover.

Percent slope is not pitch, and the difference is expensive

Low-slope and flat roofs are usually specified as a percentage grade, not a pitch, and the two get confused constantly.

A 2% slope is 0.24 inches of rise per foot. Slope factor: 1.0002. Effectively negligible.

A 2:12 pitch is 2 inches of rise per foot, which is a 16.7% grade. Slope factor: 1.0138.

Reading "2%" on a drawing and applying a 2:12 factor is a small error. Reading "2:12" and applying a 2% factor is also small. But the same confusion at 6% versus 6:12 is a 12% quantity error on your entire roof package. Read the drawing carefully and know which convention it is using.

Rafters and trusses

Rafter length is the same maths in one dimension. Horizontal run x slope factor gives rafter length along the top edge. Then add the sloped length of the overhang (the overhang gets the slope factor too, if you scaled it in plan) and deduct half the ridge thickness at the plumb cut.

Rafter count uses a different dimension, and this trips people constantly. Rafters are spaced along the ridge, not along the run:

Use the run for this and you will get a fraction of the rafters you need. The run gives you length. The ridge gives you count.

For trusses, you are counting, not measuring. Trusses come from the supplier's layout. Take the count off the truss layout drawing and take off only the bracing, hangers and blocking yourself.

Step 7: Structural, meaning beams, lintels and posts

These come off the plan too, but they are usually scattered across the drawing and easy to miss. The reliable method is to work through the framing schedule first, then hunt each tag on the plan.

1. Read the framing schedule. It tells you what B1, B2, L1, L2, PT1 actually are.

2. Circle every structural tag on the plan in one distinct colour. Orange works. Do a full sweep of each floor doing nothing but circling.

3. Then scale each one and write its length beside it.

4. Sum by tag.

Watch your tag prefixes. On a lot of drawing sets "P" means partition on the plan and post in the schedule. Beams, headers and lintels are linear feet. Posts are a count with a height. Hangers, straps and hold-downs are a count, and they are almost always in the schedule notes rather than on the plan.

Step 8: Set your waste factor, then find out what it really is

Conventional framing waste is +10%. But that number is a starting point, not an answer, and anyone who gives you a single figure for every job is guessing.

The driver is how closely the building's dimensions align to standard material sizes. Sheathing a 12:12 gable wall produces far more offcut than sheathing a flat facade, because every sheet gets a raking cut. The same is true of hip and valley roofs versus a simple gable.

Here is the part that actually matters. Pick a factor you are comfortable with, deliver the job, and then measure what your overage actually was. Track it across ten jobs and you will know your real waste factor, for your crew, on your kind of work. That is a number nobody else can give you.

And be aware of the feedback loop. The higher the waste factor you estimate and then deliver to site, the more waste your crew will comfortably produce. Material that is on site gets used.

Step 9: The worked example

The main floor of a two-storey rectangular house, 28' x 14' to the outside face of sheathing, 8' walls, 6:12 gable roof with 1' overhangs, studs at 16" o.c., 10% waste. The second-storey walls and the gable-end framing repeat exactly the same method. I have left them out to keep the arithmetic readable.

Walls

Floor

Roof

Note what the slope factor did there. Without it you would have ordered 480 / 32 = 15 sheets plus waste = 17. You would have been two sheets short before you started, and you would have blamed it on waste.

Where this method breaks down

Everything above is correct and it works. It is also the reason a framing takeoff takes a full day.

Look at what you actually did. You measured 84 linear feet of W1. Then, separately, you converted that 84 LF into studs, into plates, into sheathing, into nails, into adhesive, into housewrap, by hand, with a calculator, applying a waste factor to each one. Then you looked up six material prices and multiplied them out.

Then the client moved a wall, and you did it all again.

The measurement is not the slow part. The arithmetic between the measurement and the number is the slow part. And it is the part where errors get introduced, because it is the same eight calculations repeated for every wall type on every floor of every job you have ever priced.

You already know that a linear foot of W1 contains a fixed recipe. It always has. You have just been re-deriving that recipe from first principles on every bid.

The fix: build the wall once, use it forever

This is what an assembly is. It is the recipe for one unit of a thing you build, priced.

Assemble Pro organises it in three layers.

1. Library, the atoms. Individual priced items with a unit of measure. A 2x6x8 stud at your rate. OSB sheathing per sheet. Framing nails per box. Subfloor adhesive per tube. You set these up once with your real supplier pricing, and update them when prices move.

2. Assemblies, the recipes. An assembly defines how many of each library item goes into one unit of a build-up. So "W1, 2x6 exterior wall, 16" o.c., 8' high" is defined per linear foot as:

Note the stud figure. Step 4's 0.75/LF is the field-stud geometry alone. Once corners, tees and opening framing are folded in, a realistic 16" o.c. assembly lands somewhere around 0.9 to 1.1 studs per linear foot. The old yard rule of thumb, one stud per foot of wall, is closer to the truth than the spacing arithmetic is, and that gap is not waste. It is framing you forgot to count.

3. Templates, the skeleton. The category and group structure of a typical job for your trade, with the assemblies already attached, ready to load on the next bid.

Now go back and re-read Step 2. You measured 56 LF of W1 on the main floor. In an assembly-based takeoff, that measurement is the entire job. You draw the wall, tag it W1, and the studs, plates, sheathing, nails, gasket, waste and cost all resolve automatically. There is no calculator step. There is no eight-line conversion. There is no risk of applying last year's stud price because you copied an old spreadsheet.

And when the client moves that wall? You drag the measurement. Everything downstream re-prices.

The structure you build the takeoff in also becomes the structure the client sees on the estimate. Categories and groups on the canvas are the line items on the document you send. So the way you organise the takeoff is a commercial decision, not a filing decision.

The honest limitation. Setting up your library and your assemblies is real work. It is a few hours to get your core wall types and floor build-ups defined properly with your own rates. Prebuilt assemblies get you most of the way, but the ones that make you money are the ones that match how your crew actually builds. That cost is paid once. The method above is paid every single bid, forever.

Eight mistakes that cost framers money

1. Measuring walls to the inside face. Short on plates and short on sheathing, on every wall, on every job.

2. Taking heights off the floor plan. The floor plan contains no height information. Go to the section, and deduct the bottom plate to get the stud.

3. Treating nominal wall height as sheathed height. An "8 ft" wall is 97 1/8" of sheathing, and more at upper floors where it runs over the rim.

4. Ignoring the roof slope factor. Costs you 5% on a shallow roof and 41% on a 12:12.

5. Confusing percent grade with pitch. Two different conventions for the same idea, on the same set of drawings.

6. Counting rafters off the run instead of the ridge. The run gives you length. The ridge gives you count.

7. Pricing 0.75 studs per foot and stopping there. That is field geometry only. Corners, tees and openings push a real wall closer to one stud per foot.

8. Not writing dimensions on the drawing. You will come back to this sheet. You will not remember why you measured what you measured.

Frequently asked questions

What is a framing takeoff?

A framing takeoff is the measurement of a set of drawings to determine the quantity of structural material a building requires: studs, plates, sheathing, joists, beams, lintels and posts. Walls and structural members are measured in linear feet, floors and roofs in square feet, and posts and hardware by count. It produces quantities only. Pricing those quantities is the estimate.

What waste factor should I use for framing?

Conventional framing waste is +10%, but it depends on job complexity and how closely the building's dimensions align with standard material sizes. Simple rectangular plans on 4' modules run 5% to 8%. Complex plans with multiple roof planes run 12% to 18%. Start with a factor you are comfortable with, then measure your actual overage on completed jobs and track it. After ten jobs you will know your real number.

How do I calculate the number of studs in a wall?

Multiply the wall length in feet by 12, divide by the stud spacing in inches, and add one. At 16" o.c. the shortcut is 0.75 studs per linear foot plus one. Then add two studs per corner, one per wall intersection, and two king plus two jack studs per opening, plus cripples above and below.

How do I calculate roof sheathing area from a roof plan?

Multiply the plan area by the slope factor for the roof pitch. A roof plan shows the roof as a flattened overhead projection, which is always smaller than the actual sloped surface. The slope factor is the square root of 1 plus the pitch ratio squared: 1.054 at 4:12, 1.118 at 6:12, 1.414 at 12:12.

How do I calculate the roof slope factor if the pitch is given in degrees?

Divide 1 by the cosine of the pitch angle. A 22.5 degree roof, the volume-builder default in Australia, has a slope factor of 1.0824. A 30 degree roof is 1.1547, and 45 degrees is 1.4142, the same as a 12:12. Multiply your plan area by that figure to get the true sloped area.

What is a roof slope factor?

A roof slope factor is the multiplier that converts the flattened plan area of a roof into its true sloped area. It equals the square root of 1 plus the pitch ratio squared. Without it, every roof sheathing quantity taken from a plan view is short: by 3% on a 3:12 and by 41% on a 12:12.

Is a 2% slope the same as a 2:12 pitch?

No. A 2% slope is 0.24 inches of rise per foot and has a slope factor of 1.0002, effectively negligible. A 2:12 pitch is 2 inches of rise per foot, a 16.7% grade, with a slope factor of 1.0138. Low-slope and flat roofs are usually specified in percent, pitched roofs in rise over run. Check which convention your drawing uses.

Why do estimators draw a diagonal line across an area instead of outlining it?

The diagonal is a marker, not a measurement. The area is calculated as length times width. The diagonal is drawn straight through the middle so that when you return to the drawing you can see at a glance which areas have already been accounted for. It is much faster than tracing the full perimeter.

Do I need an engineer for walls over 10 feet?

Often no. Under the IRC, 10 ft is the prescriptive limit for bearing 2x4 and 2x6 studs (Table R602.3(5)). Nonbearing walls are prescriptive to 14 ft for 2x4 and 20 ft for 2x6. Bearing walls can also go higher under Exception 2 of R602.3.1: 2x6 to 18 ft at 16" o.c., or 20 ft at 12" o.c., within stated load and wind limits. Confirm against your code edition and jurisdiction before pricing, because a spacing change from 16" to 12" o.c. moves your stud count by a third.

How do I count rafters?

Rafter count is the roof length along the ridge divided by the spacing, plus one, then doubled for a gable because you have two rafter planes. Do not use the horizontal run for this. The run gives you rafter length (run times slope factor), not rafter count. Confusing the two is one of the most common framing takeoff errors.

Should I do takeoffs on paper or digitally?

Paper teaches you to read drawings, which is why it is still how carpentry students should learn. For production estimating, digital wins on cost and speed alone: no printing, no driving to collect plan sets, and several takeoffs a day instead of one. The bigger gain is that a digital takeoff is re-usable. When a revision lands you adjust the measurement rather than re-measuring the sheet.

Can I do framing takeoffs in Bluebeam?

Yes, and Bluebeam is a capable tool if you already know exactly what you are looking for. The trade-off is a steep learning curve. For someone new to plan reading, the software adds a layer of complexity on top of a skill they have not learned yet. Purpose-built takeoff software with prebuilt assemblies gets you to a priced number faster. We compared them directly in Assemble Pro vs Bluebeam, and reviewed the wider field in the best construction takeoff software for 2026.

Does a framing takeoff include labour?

No. The takeoff produces material quantities only. Labour is priced at the estimate stage, usually as hours per unit against the same quantities: hours per linear foot of wall framed, hours per square foot of sheathing hung. Because the units are the same, a good assembly can carry a labour rate alongside its material content, so both resolve from the same measurement.

How long should a framing takeoff take?

Measured by hand on paper, a straightforward two-storey house takes most estimators the better part of a day, and the measuring is not the slow part. The conversion arithmetic and the pricing lookups are. With a library and assemblies already built, the same job is the measurement plus a tag, and the quantities and cost resolve from there.

Get the arithmetic out of your bids

If everything above is already how you think about framing, you do not have a takeoff problem. You have a repetition problem. You are re-deriving the same wall recipe on every bid you send.

Assemble Pro is takeoff and estimating software built for builders and subcontractors, with a library, assemblies and templates so you build your wall types once and price them forever. Start a 14-day free trial, no credit card required, or see how assemblies work.

Related reading:

• The best construction takeoff software in 2026

• How to do a concrete takeoff and estimate

• Material takeoffs for roofing contractors

• Manual takeoff vs takeoff software

• The real cost of manual takeoffs

• Quantity takeoffs for the trades

Jonathan Slattery is the CEO of Assemble Pro, takeoff and estimating software for builders and subcontractors.