Interior Door Replacement Cost Calculator
Calculate costs for replacing interior doors including slab, hardware, frames, finishing, and installation labor.
Interior Door Replacement Cost Calculator
Calculator
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Formula: Total = (door + hardware + frame + finish + labor) x quantity + 5% misc
Worked example — Total: $1,365 | Per door: $170.63 | Materials: $520 | Labor: $780
Formula
Total = (door + hardware + frame + finish + labor) x quantity + 5% misc
Total cost equals the per-door cost (slab price plus hardware plus optional frame plus finishing cost plus labor hours times hourly rate) multiplied by the number of doors, plus a 5% allowance for miscellaneous supplies like shims, screws, and caulk.
Worked Examples
Example 1: Budget Renovation: 8 Hollow-Core Doors
Problem:Replace 8 interior doors with hollow-core flat-panel doors, basic hardware, primed finish, no frame replacement. Labor: $65/hr, 1.5 hrs/door.
Solution:Door slab: 8 x $50 = $400 Hardware: 8 x $15 = $120 Paint/Finish: $0 (primed only) Labor: 8 x ($65 x 1.5) = $780 Subtotal: $1,300 Misc (5%): $65 Total: $1,365 Per door: $170.63
Result:Total: $1,365 | Per door: $170.63 | Materials: $520 | Labor: $780
Example 2: Premium Upgrade: 6 Solid-Core Shaker Doors
Problem:Replace 6 doors with solid-core shaker style, mid-range hardware, painted finish, new frames. Labor: $85/hr, 2 hrs/door.
Solution:Door slab: 6 x $140 = $840 Hardware: 6 x $35 = $210 Frame: 6 x $50 = $300 Paint: 6 x $40 = $240 Labor: 6 x ($85 x 2) = $1,020 Subtotal: $2,610 Misc (5%): $130.50 Total: $2,740.50 Per door: $456.75
Result:Total: $2,740.50 | Per door: $456.75 | Materials: $1,590 | Labor: $1,020
Frequently Asked Questions
How much does it cost to replace interior doors on average?
The average cost to replace an interior door ranges from $200 to $650 per door installed, with most homeowners spending around $350 per door. This includes the door slab ($50-$500 depending on material and style), hardware ($15-$150), and professional installation ($100-$200 per door at typical labor rates). Hollow-core doors are the most affordable option at $50-$120 for the slab, while solid wood doors can cost $250-$500 or more. If the door frame needs replacement, add another $50-$150 per opening. A typical home renovation replacing 8-10 interior doors costs between $2,000 and $5,000. Costs vary significantly by region, with urban areas generally having higher labor rates than rural areas.
What is the difference between hollow-core and solid-core interior doors?
Hollow-core doors have a cardboard honeycomb interior wrapped in a thin veneer or MDF skin, making them lightweight (15-20 lbs) and affordable ($50-$120). They provide minimal sound insulation and feel less substantial. Solid-core doors have a composite wood fiber core that makes them heavier (40-60 lbs) and provides significantly better sound dampening, fire resistance, and durability. They cost $120-$250 and are recommended for bedrooms, bathrooms, and home offices. Solid wood doors are the premium option ($250-$500+), crafted from hardwoods like oak, maple, or mahogany. They offer the best sound insulation, longest lifespan, and most premium feel, but require more maintenance as they can warp or expand with humidity changes.
Should I replace my interior doors myself or hire a professional?
DIY door replacement can save 40-60% of total cost by eliminating labor charges. If you are replacing a door in an existing frame (slab-only swap), it is a moderate DIY project requiring basic tools like a drill, chisel, level, and shims. The main challenges are properly aligning hinges, ensuring the door swings freely, and getting even gaps around the frame. Professional installation is recommended when you need to replace the frame and jamb, when walls are not plumb or square (common in older homes), for pocket doors or barn doors that require hardware tracks, or when you are doing many doors and want consistent quality. Professional installers typically complete one door in 1-2 hours, while a DIYer might take 2-4 hours per door.
What door styles are most popular for modern home interiors?
Shaker-style doors are currently the most popular choice for interior doors, featuring clean lines with a recessed center panel that complements both modern and transitional design styles. They typically cost $65-$300 depending on material. Flat-panel (flush) doors offer the most minimalist aesthetic, popular in contemporary homes, and are the least expensive at $50-$250. French doors with glass panels are popular for offices, dens, and separating living spaces while maintaining light flow, costing $120-$450 per door. Barn doors have surged in popularity for their rustic-modern aesthetic and space-saving sliding mechanism, ranging from $150-$500 plus hardware track costs of $50-$200. Raised-panel doors remain popular in traditional and colonial-style homes.
How does door hardware selection affect total replacement cost and functionality?
Door hardware significantly impacts both cost and the overall feel of your door upgrade. Basic hardware packages ($15-$25) include a standard lever or knob with a simple latch, adequate for closets and utility rooms. Mid-range hardware ($35-$75) offers better finishes like brushed nickel, oil-rubbed bronze, or matte black, with smoother mechanisms and more design options. Premium hardware ($75-$150) features designer knobs or levers from brands like Schlage or Baldwin with high-quality finishes and superior mechanisms. Smart locks ($150-$300) add keypad or smartphone entry for home offices or private rooms. When replacing multiple doors, choosing matching hardware throughout creates visual consistency. Budget approximately 10-15% of your total door replacement budget for hardware to maintain quality proportional to your door selection.
What is the difference between a door slab and a pre-hung door?
A slab is the door panel alone, with no jamb, no hinges mortised, and usually no bore for the latch. It is the cheaper path when the existing jamb is square, sound, and staying, but you must transfer hinge mortise positions and bore the knob hole precisely. A pre-hung door arrives already hung on its jamb with hinges mortised and the latch bore cut, so it installs as a unit into the rough opening. Pre-hung costs more and requires removing the casing and re-trimming, but it is the correct choice when the jamb is racked, damaged, or being replaced, which is what Interior Door Replacement Cost Calculator's frame toggle represents.
How do I check whether a replacement slab will fit my existing jamb?
Measure the existing door itself rather than the opening: width and height across the slab, plus thickness, which is typically 1 and 3 eighths inches for interior doors. Then note hinge count, hinge size, the distance from the top of the door to the top of each hinge mortise, and the backset, meaning the distance from the door edge to the centre of the knob bore, commonly 2 and 3 eighths or 2 and 3 quarters inches. Finally confirm the swing direction and which edge is hinged. A slab that matches on all of those drops in with only minor edge planing.
Why do solid-core doors quiet a room more than hollow-core doors?
Sound transmission through a partition depends heavily on mass. A hollow-core door is a thin skin over a cardboard honeycomb, so there is little mass to resist the pressure wave and speech passes through readily. A solid-core door uses a dense engineered wood fibre core weighing several times as much, so the same sound energy moves it far less and more energy is reflected. Weight is why solid-core doors need three hinges rather than two and firmer jamb fastening. Gaps matter too, so an undercut of an inch or more will undo much of the benefit no matter which core you buy.
What extra work do barn doors and pocket doors require compared with a swinging door?
A barn door hangs from a wall-mounted track, and that track must be lag-screwed into solid blocking or a header, not drywall anchors, because it carries the full weight of the slab plus the pull of sliding. It also needs a slab wider and taller than the opening to cover it, and it does not seal or latch like a hinged door. A pocket door needs a stud-bay-wide cavity, which means opening the wall, framing a split-stud pocket, and confirming there is no wiring or plumbing in that bay. Both are why Interior Door Replacement Cost Calculator prices those styles above a comparable hinged slab.
Should I buy doors primed or pre-finished when replacing several at once?
Primed doors arrive with a sprayed factory undercoat and still need two topcoats, which you can roll and brush yourself or pay for, and they let you match one paint colour across the whole house. Pre-finished doors arrive with a cured factory finish that is smoother and harder than a site-applied coat and eliminate the wet-door staging problem when doing six or more openings at once. The trade-off is that field touch-ups on a factory finish are hard to blend, so a scuff during installation is more visible. Whichever you choose, seal the top and bottom edges, as unsealed end grain is where humidity gets in and warps a door.
References
Reviewed for accuracy by Daniel Agrici, Founder & Lead Developer · Editorial policy
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