Estimating doors cost means building up from the door schedule to a defensible bid price. The build up is: door + frame + hardware + labor = direct cost, then + overhead = job cost, then + profit = bid price. Each layer has a range, not a fixed number. Your actuals depend on door type, fire rating, hardware schedule, and how much field fabrication the openings need.
What You Are Pricing
A door bid is not one number per opening. You are pricing four things that move independently: the door (material, gauge, core, finish, size), the frame (knockdown, welded, set in new or existing wall), the hardware (hinges, lock, closer, exit device, electrified components), and the labor to receive, hang, and adjust each opening. On commercial work you also carry fire labels, sweeps and gaskets, and access control integration. Price each opening as its own line item built from these parts, because a hollow metal fire door with an electrified panic exit is a different animal from a hollow core interior door with passage hardware.
Direct Cost Buildup
Direct cost is what you spend on the job. Build it opening by opening.
- Door material: priced per leaf. A hollow metal commercial door costs more than a wood commercial door, and a fire rated labeled door costs more than a non rated one. Stainless, lead lined, and acoustic doors multiply the price. Add the frame as its own line, because a knockdown steel frame is far cheaper than a welded and set frame.
- Hardware: priced per hardware set. Each set has hinges, a lock or latch, a closer if required, stops, and trim. Exit devices, electromagnetic holders, and electrified strikes add a lot. Pull hardware from a written hardware schedule, not from a guess, and quote each set to a supplier.
- Labor to install: priced per opening or per man hour. A welder hanging a welded frame in new steel stud framing takes longer than a carpenter setting a knockdown frame in existing drywall. Hinging and hanging a prefit door is fast; trimming and mortising a blank takes hours. A typical carpenter hangs 4 to 8 doors a day on a clean job, less on fire rated work that needs labeling paperwork.
- Field work and modification: cutting down an existing opening, welding in a sub frame, or fixing out of square framing. These are line items, not freebies.
- Paint or finish: prime and finish coats, or factory finish, depending on the spec.
- Equipment and tools: welder, lifts for tall openings, and any special bits or routers. Usually a small line but real on a heavy steel job.
For a representative scope, 20 openings with 20 frames and 20 hardware sets, mix of hollow metal and wood, with average commercial hardware, a typical direct cost lands in the range of $6,000 to $8,500. Materials are 60 to 75 percent of that, labor 20 to 30 percent, and the rest is field work and finish.
Step by Step Cost Estimate
Work the schedule in this order so nothing falls through.
- 1. Read the door schedule: list every opening with size, type, material, fire rating, and swing. Confirm wall types and existing conditions on site.
- 2. Take off frames: knockdown, welded, or existing. Note wall condition, because new steel stud takes a knockdown but existing masonry takes a wrap and plaster frame.
- 3. Take off hardware per set: hinges, lock, closer, exit device, stops, sweeps, and any electrified components. Get a hardware quote from a supplier.
- 4. Price doors and frames: pull current supplier pricing per opening. Add fire label surcharge where required.
- 5. Price labor: estimate carpenter hours per opening by type. Hanging a prefit hollow metal door is 1 to 2 hours. A fire rated wood door with mortised hardware can be 3 to 5 hours.
- 6. Price field work: opening modifications, welding, and trim. Quote these as separate line items.
- 7. Sum direct cost: add doors, frames, hardware, labor, and field work. This is your floor.
- 8. Apply overhead: 10 to 20 percent of direct cost, from your actual books.
- 9. Apply profit: 5 to 15 percent of (direct plus overhead), set by risk and market.
- 10. Sanity check: divide the bid price by opening and by SF. Compare to your recent jobs and local market numbers.
Factors That Move the Number
Door type drives material cost hard. A 20 minute fire rated hollow metal door costs more than a non rated one, and a 90 minute labeled door costs more again. Hardware is the second big mover. An exit device with a closer and electrified holder can cost more than the door it hangs on. Frame condition in existing walls drives labor, because retrofitting a frame into masonry or out of square framing eats hours. Electrified hardware pulls in the low voltage trade and adds coordination. Lead lined doors for medical or X ray work multiply material cost. Stainless and custom finish doors run high. Lead time on custom doors can push the schedule, which is a cost in itself. Quantity matters, because small orders lose supplier discount and the setup for a one off fire labeled door is not much less than for ten.
Common Mistakes
- Pricing per opening without a written hardware schedule, then finding the spec called for exit devices and closers on every door.
- Forgetting the fire label surcharge, then paying for it out of margin.
- Quoting knockdown frames when the wall type calls for welded and set.
- Assuming existing openings are square and clean, then eating the field fix.
- Not pricing electrified hardware coordination with the low voltage trade.
- Using markup instead of margin. Ten percent markup is not ten percent margin.
- Not burdening the labor rate before marking up. The wage you pay is not the wage you carry.
- Setting one profit number on every job regardless of rating and access control scope.
Putting It Together
Build the estimate from the door schedule up, not from a per opening guess down. Read the schedule, take off doors, frames, and hardware by set, price each with current supplier numbers, add labor by opening type, sum the direct cost, then layer overhead and profit on top. The bid price is direct cost plus overhead plus profit, nothing else. When the schedule is honest and the hardware is quoted, the number holds up on bid day and on payday.