Quick Answer: Interior doors typically run $40 to $400 per door, with most spec grade work landing between $80 and $180 and solid wood or premium prehung units pushing past $400. Price moves with material, core type, finish, prehung versus slab, and region. The ranges below are general estimates based on publicly available data, get current quotes from your suppliers for accurate bids.
What Drives the Price
Five things move an interior door price, and you should know all five before you bid:
- Material and core: hollow core composite doors sit at the bottom of the range, solid core MDF or particleboard doors sit in the middle, and solid wood (knotty alder, cherry, mahogany, hickory) sits at the top. A flush hollow core slab can land around $40 to $90, a solid core MDF slab runs $120 to $250, and a solid wood panel door commonly runs $250 to $600.
- Slab versus prehung: a slab is just the door. A prehung unit adds the frame, hinges, and stop, and typically costs $40 to $120 more per opening. Prehung saves labor on the install but raises the material line item.
- Style and panel count: a flush door is cheapest. Two panel, three panel, and five panel designs add $20 to $80 per door depending on the profile. Arched tops, French lite cutouts with glass, and bifolds all carry premiums.
- Finish: primed (ready to paint) is the spec default and cheapest. Prefinished in a stain or urethane from the factory adds $30 to $100 per door. Unfinished means you carry the finishing labor on site.
- Size and fire rating: standard 6 ft 8 in by 2 ft 6 in is commodity. 8 ft tall, 3 ft 0 in wide, or oversize units run 20 to 50 percent more. Fire rated doors (20 minute, 45 minute, 90 minute) for attached garage and rated corridor applications can double the price of a comparable non rated door.
Region and volume still matter. A door going to a mountain cabin carries freight and a remote delivery surcharge. A 50 unit multifamily order gets a volume break a single door replacement never sees.
Typical Price Ranges by Type
As of 2026, common per door ranges run like this. Treat these as ballpark, your supplier quote is the real number.
- Hollow core flush slab: $40 to $90 per EA. Painted, primed, no frame.
- Solid core MDF flush slab: $120 to $250 per EA. Heavier, better sound control, paint grade.
- Solid core particleboard slab: $100 to $220 per EA. Common in multifamily.
- Two or three panel molded slab: $90 to $180 per EA. Embossed skin over composite core.
- Knotty alder or pine panel door, slab: $250 to $450 per EA. Stain grade, solid wood.
- Hickory, cherry, or mahogany panel door, slab: $350 to $700 per EA. Premium hardwoods.
- Prehung adder (any of the above): $40 to $120 per EA on top of the slab.
- Fire rated 20 minute door, prehung: $200 to $450 per EA. Required on garage to house and some corridor openings.
- French or lited door, prehung pair: $400 to $900 per pair. Glass adds the cost.
- Bifold, per pair (closet): $60 to $200 per pair. Louvered or paneled.
How to Calculate the Quantity You Need
Take the count straight off the door schedule on the plans. Every opening listed is one door, and the schedule tells you the type, size, fire rating, and swing. Group the count by type so you can price each group at its own range, do not blend a $60 hollow core slab with a $500 mahogany unit at one average, you will be wrong on both ends.
Apply a small waste factor. Interior doors do not break like tile, but a damaged slab or a frame warped in transit happens. Two to five percent is typical for a tract job, zero to two percent on a custom single family with careful handling. Round up to the next whole door, you cannot buy a partial slab.
Tie the count to the sheet it came from. If the architect revises the schedule, you need to know immediately, a single added opening at $400 swings the door line item more than most people expect. Keep the door, frame, and hardware lines separate on your estimate so a substitution late in the job does not blow the budget silently.
How to Buy Smarter
- Get three quotes, every time. Door prices move 10 to 30 percent between suppliers in the same city. The lumberyard, the door shop, and the building supply house all quote differently.
- Bundle the door package. Put every interior door on one purchase order. Suppliers give package discounts that single door orders never see.
- Decide slab versus prehung early. If your carpenter crew hangs doors fast, slab saves money. If labor is tight or the frames are out of plumb, prehung cuts field time and saves on call backs.
- Lock the quote for 30 to 60 days. Door prices track lumber and composite indices, they move. A held quote protects your margin on longer bids.
- Verify the fire rating. A code required 20 minute door on the garage entry is not optional. Substituting a non rated door to save $150 fails inspection and costs more in the redo.
- Check lead time. Custom stain grade and 8 ft units can run four to eight weeks. Order early or you hold the trim schedule.
Where Estimators Get It Wrong
The most common miss is averaging. Take a job with twenty hollow core flush slabs at $70 and four mahogany panel doors at $500. Averaged at $115, the line looks fine, but the spec for the mahogany doors alone is $2,000 above the average line. Price by type, not by average.
The second miss is forgetting the frame. A slab price with no frame, no hinges, and no stop is not a complete opening. If the schedule calls prehung, the slab only number is wrong. If the schedule calls slab, you still need to add hinges, stop, and casing as separate line items.
The third miss is hardware. Locksets, levers, and hinges are not in the door price. A mid grade lever set runs $30 to $80 per opening and gets its own line. Skip it and you are under on hardware before the job starts.
The fourth miss is finish. Primed doors still need paint. Prefinished doors cost more up front but skip field finishing. Unfinished stain grade doors carry field labor that estimators sometimes leave out. Match the finish to the labor line.
Putting It Together
Interior doors look like a simple line item and they are not. Price each type at its own range, separate slab, prehung, hardware, and finish, carry a small waste factor, and lock your quote. A clean door package on a single family home commonly lands between $2,500 and $8,000 total, depending on count and grade. Get three quotes, tie the count to the door schedule, and price the opening complete, not just the slab. That is how you keep the door line defensible.