How to Estimate Doors Takeoff 2026

A doors takeoff is the measured quantities part of a doors estimate: the counts and lengths your trade bills on. Done by hand it means counting door symbols one by one on the floor plan, cross referencing the door schedule, and pulling hardware sets off a separate legend. Done with on screen takeoff software it means clicking each door and tagging it to the schedule. Done with AI it means uploading the drawings and getting the same quantities back in seconds, with the math shown for every line so your estimator can check the work instead of doing it.

What You Are Counting

Doors takeoff is a count driven takeoff, not a measured one. You are pulling counts of doors, frames, and hardware sets, and matching them to type, size, material, and fire rating. The takeoff lines up with spec division 08 and the door and hardware schedule.

Doors by type and size. Count by the each (EA), grouped by material, width, height, thickness, and fire rating. A 36 by 84 hollow metal 90 minute door is a different line than a 36 by 84 wood stain grade door.
Frames by type and size. Count by the each, grouped by material, profile, and fire rating. Hollow metal, aluminum, and wood frames each carry their own line. Measure head and jamb lengths in linear feet (LF) for fabricated frames.
Hardware sets. Count by the set, one set per door, pulled from the hardware schedule and keyed to the door mark. Hinges, locks, closers, stops, thresholds, sweeps, and weatherstrip all live in the set.
Weatherstripping and sweeps. LF of weatherstrip around the head and jambs, count of door sweeps at the bottom. Each gets its own line because the unit price differs.
Thresholds. Count by the each, plus LF for length if the threshold is cut to fit a wider opening.
Rough openings. SF of rough opening area when the takeoff feeds framing or blocking, computed from width times height off the schedule.
Accessories. Count of viewers, signage, louvers, astragals, coordinators, and electric strikes pulled from the hardware set notes.

Units and Scale

Doors are taken off by the each. You count doors, you count frames, you count hardware sets, and you count thresholds. Linear feet shows up for weatherstrip, sweeps, and fabricated frame legs and heads. Square feet shows up only when the door takeoff feeds a rough opening or blocking quantity for another trade. The door schedule holds the sizes, the plan holds the locations, and the hardware schedule holds the set assignment.

Scale matters less on a doors takeoff than on a measured trade, because most of the count comes from the schedule, not the plan. You still set the scale on the floor plan so you can verify the plan count against the schedule count and catch the door that got dropped or added in the field. Confirm the plan scale, commonly 1/8 inch or 1/4 inch to the foot, against the bar scale on the drawing.

Step by Step Takeoff

Pull the door and hardware sheets first. Collect the floor plans, the door schedule, the hardware schedule, the frame details, and the keynotes. The schedules are the source of truth for size and type, the plan is the source of truth for location and count.
Set and verify the scale on every plan sheet. Match the bar scale. Recheck when you move between floors or plan types.
Take off the door schedule first. Pull door mark, type, width, height, thickness, material, and fire rating from the schedule. Count each mark and confirm the count matches the plan symbol count. Flag any mismatch before you move on.
Take off the frames. Match each door mark to its frame, pull frame type, material, profile, and fire rating. Count frames and measure head and jamb LF for fabricated frames.
Take off the hardware sets. Pull the hardware set number from the schedule, list each component in the set, and count one set per door. Hardware sets drive a big share of the door budget, so verify every set against the hardware legend.
Take off weatherstrip, sweeps, and thresholds. Compute weatherstrip LF from the door width plus twice the height for each door that gets a gasket. Count sweeps by the each. Count thresholds by the each and add LF if the threshold runs longer than a standard size.
Compute rough opening SF where needed. Multiply door width plus the rough opening allowance times door height plus the allowance for SF of opening area. This feeds framing and blocking takeoffs in other trades.
Apply waste and spares. Doors and frames get a small spare count on large jobs, commonly 1 to 2 percent. Hardware gets a small parts allowance for lost pieces. Weatherstrip and sweeps get 5 to 10 percent waste for cuts and field fit.
Organize and export. Group quantities by door mark, type, and location. Tag every line to its sheet and schedule row. Export to Excel or PDF for pricing.

Manual vs Digital vs AI Takeoff

Manual doors takeoff uses a printed floor plan, a highlighter, and the door and hardware schedules. You count door symbols room by room, tick them off against the schedule, and copy the hardware set onto each door. It works, but it is slow, commonly 30 to 60 minutes per floor, and a missed door or a transposed mark does not show up until the hardware shows up short.

Digital on screen takeoff swaps the highlighter for a mouse. You click each door, tag it to the schedule row, and link the hardware set. The software keeps the running count and flags duplicates. It is faster and cleaner than manual, but you still read the schedule and assign the set yourself.

AI takeoff reads the floor plan and the schedules the way an estimator does. It detects door symbols, reads the door and hardware schedules, matches marks to locations, and reports counts by type, size, and set with the math shown for every line. Confidence flags mark what to verify, and low confidence lines show the source mark so you can check in seconds. Your estimator spends time on judgment, like confirming a custom hardware set, and lets the software handle the counting.

Common Takeoff Errors

Counting doors off the plan without reconciling to the schedule. The schedule is the source of truth, the plan is the location reference.
Missing a door that appears on the plan but not the schedule, or the reverse. Flag every mismatch before you lock the takeoff.
Double counting double doors. A pair of leafs is two doors, count them as two and check the frame count matches.
Forgetting the hardware set on doors that look the same. Two identical doors can carry different sets, read the mark.
Forgetting weatherstrip, sweeps, and thresholds on rated doors. These are required, not optional, on fire and smoke assemblies.
Counting frames by opening instead of by door. A pair of leafs in one frame is two doors and one frame, not two frames.
Missing accessories like viewers, louvers, astragals, and electric strikes that live in the hardware set notes, not the schedule.

Putting It Together

A clean doors takeoff ends with counts organized by door mark, type, size, and location, each tied to its frame and hardware set: doors by the each, frames by the each and LF for fabricated legs and heads, hardware sets by the set, weatherstrip and sweeps in LF and count, thresholds in count, and accessories pulled from the set notes. From there pricing is a separate step, you multiply your counts by unit costs and add labor. The takeoff itself is just the counting, done right, with the source schedule row shown so anyone can follow it back to the drawing.