How to do a framing takeoff, step by step
A framing takeoff goes faster and comes out cleaner when you do it in the same order every time. This is the order most estimators settle on, from scaling the first sheet to checking the final list.
Before you count anything
Before you start, gather the full plan set: floor plans, exterior elevations, building sections, wall sections, and any framing, structural or truss sheets. Write down your rules too: stud spacing, plate and header conventions, how you count corners, and your waste factors. Most disagreements between two takeoffs come from unwritten rules, not from bad math.
Read the notes and the legend first. Wall types, plate heights, header schedules and sheathing specs are often written down once and apply everywhere. Missing a note like "all exterior walls 2x6 at 16" o.c." changes hundreds of pieces.
Then decide how you will organize the list. Grouping by floor and by assembly (exterior walls, interior bearing walls, partitions, floor system, roof) makes the takeoff easier to check and easier to re-price when the plans change.
The takeoff, in order
1. Set the scale on every sheet
Calibrate each sheet from its printed scale, then check it against a dimension you can read, such as an overall building length. Sheets in one set can use different scales. With Aximos, each sheet is calibrated from its printed scale and you can verify it against a dimension.
2. Take off walls by type
Measure linear feet of each wall type, per floor, with its plate height. Studs come from length ÷ spacing plus one, then extras for corners, intersections and openings. Plates are linear feet times the number of plates, usually one bottom and a double top.
3. Take off openings and headers
List every door and window by rough opening width. Each one gets a header sized from the schedule or the plans, plus king and jack studs and cripples. Count openings from the plan, not from a window schedule alone. Schedules miss things.
4. Take off floor systems
For each floor area, note joist direction, span, size and spacing. Count joists across the length, add rim board around the perimeter, beams and blocking where the plans call for them, and subfloor sheets by area.
5. Take off the roof
Work from the roof plan and sections. Rafters by plane, adjusted for pitch, plus ridge, hips, valleys and ceiling joists, or a truss count if trusses are specified. Roof sheathing comes from the sloped area, not the footprint.
6. Take off sheathing
Wall sheathing from exterior wall area minus large openings, in 4x8 sheets. Be consistent about which openings you deduct and write the rule down.
7. Convert to pieces and add waste
Turn linear feet into stock lengths you can actually buy, and apply waste per assembly rather than one blanket number. Then map each line to the product you stock or order.
8. Check it before it goes out
Re-read the plan against the list: every wall type, every opening, every floor and roof plane accounted for. Our lumber takeoff checklist lists the twelve checks that catch most misses.
Where Aximos fits in
- 01
The AI drafts steps 1–7
Upload the plan set. The AI calibrates the sheets, traces walls, openings, floors and roofs on their own layers, and builds the material list on your SKUs. Typically 2–6 hours.
- 02
You do step 8
Review the draft with the plan beside it. Click any quantity to see the lines it came from and the formula behind it. Built-in checks flag things like an opening with no header.
- 03
Fix and export
Correct what is off, or trace a sheet by hand if the AI missed it. The list updates as you go. Export the approved list to Excel or CSV.
Framing takeoff questions
How do you calculate the number of studs in a wall?
A common starting point is wall length in inches divided by the stud spacing, plus one, then extra studs for corners, intersecting walls and each side of every opening. Many estimators then add a per-wall allowance. Write your rule down so every takeoff uses the same one.
Should I take off from the floor plan or the framing plan?
Use both when you have them. The floor plan gives wall locations and openings; framing and structural sheets give member sizes, spacing and headers. When they disagree, the structural sheets usually govern, but note the conflict and ask.
How much waste should I add to a framing takeoff?
It depends on the assembly, the crew and how you buy. Rather than one blanket percentage, set waste per assembly and keep it visible on the list so the customer or framer can see it and adjust it.
What is the most common framing takeoff mistake?
Missed or undersized headers, a wrong scale on one sheet, and a floor or wall type that was never counted. None of them show up in the math; they show up when you compare the list against the plan.
Can I do a framing takeoff without takeoff software?
Yes, with a scale ruler, a highlighter and a spreadsheet. Software speeds up measuring, and AI takeoff software like Aximos drafts the whole takeoff so your time goes into checking it instead.
Skip to step 8 on your next plan set
Bring a plan set you’re bidding. The AI drafts the takeoff, and you check it with us on the call.