← Interior door bid calculator
Carpenters get shopped on a published $150 a door installed Facebook special. Those numbers cannot see the opening or the leaf. A hollow-core slab hung on an existing jamb is a different job from a solid-core prehung in a new opening with paint-grade casing, new privacy hardware, and a haul-away.
Open the free interior door bid calculatorAn interior door replacement is an opening, then a leaf, then how ready that jamb is. Hollow slab is a cheap leaf. Hollow prehung is a builder unit. Solid-core is weight. French-or-barn is a pair of leaves or a track. Hang-only hangs a slab on the existing jamb. Prehung-swap pulls the old unit. New-opening is a header. Pocket-conversion is a wall pocket.
Homeowners usually start from the hollow-slab special, then ask whether solid-core, 8-foot, or a French pair is “a little more.” On the same opening and the same scope it is not a little more. Solid-core buys a heavier leaf and a closer fit. French-or-barn is a pair and hardware. The calculator prices all four leaves on the opening you already counted so you can quote the upgrade instead of matching the hollow-slab number on a French-pair job.
The cheap special is almost always an 80-inch hollow slab, no paint, no haul, no frame work. A French-pair pocket conversion is a different crew hour. Matching an installed number on a pocket-frame job is how a sold door becomes a loss when the header and the extra trip eat the margin.
An entry door is weather, sidelights, a transom, and jamb-rot. A patio slider is panels and impact glass. A garage door is springs and a header. Plantation shutters are louvered panels. Crown molding is a run of trim. Interior painting is a coat. This prices an interior door replacement: the leaf, the opening, the casing, and extras.
Owners also shop a second special: “I already bought it — just hang it for $150.” Zeroing the millwork invoice drops the bid. The trip and the set stay. A slab that binds is a second trip. See should I hang a customer-supplied door for the three-way comparison on the same opening.
A third special is the calendar: “Can you come Saturday? Same $150?” After-hours is time-and-a-half plus a second dispatch. Weekday while they stay home is the same wage on a slower hang. See should I hang doors on Saturday for weekday they-leave versus they-stay versus after-hours on the same opening.
Load the wage with payroll burden. Add overhead as a share of direct cost. Then take margin as a share of the customer’s price, not a markup on cost. The walk-away number is total cost. A proposed price under that number loses money before you take anything out of it.
This page is a walkthrough of the arithmetic in the interior door bid calculator. It is not a building-code determination, a fire-rating specification, or a price you should copy onto a contract.
Charge from door count, leaf, size, scope, extras, and when you can work — not a published $150-a-door installed special. A hollow-core slab hung on an existing jamb is a different job from a solid-core prehung in a new opening with paint-grade casing, new privacy hardware, and a haul-away.
No. Hang-only hangs a slab on the existing jamb. Prehung-swap pulls the old unit and sets a new prehung. New-opening is a header and studs. Pocket-conversion is a wall pocket. Matching an installed special on a pocket-conversion job is how a sold door becomes a loss when the header and the extra trip eat the margin.
Hollow slab is a cheap leaf. Hollow prehung is a builder unit. Solid-core is weight. French-or-barn is a pair of leaves or a track. Price all four on the same opening to see the upgrade — matching the hollow-slab special on a French-pair job is the losing bid. Paint, haul-away, and a new lockset do not live in a published installed dump.
No. After-hours is time-and-a-half plus a second dispatch. A $349 Saturday special on a hollow-slab hang covers a weekday they-leave slot and loses money after hours. See should I hang doors on Saturday.
No. An entry door is weather, sidelights, a transom, and jamb-rot. A patio slider is panels and impact glass. A garage door is springs and a header. This prices an interior door replacement: the leaf, the opening, the casing, and extras.