| Door Material |
Steel, fiberglass, solid wood, or engineered wood |
Entry-door slab prices commonly range from approximately $150 to $2,500, excluding installation; custom wood doors can cost more. |
Material affects purchase price, maintenance, insulation, durability, and resistance to moisture or dents. |
Compare the full door-system cost, not only the slab price. |
| Installation Budget |
Professional replacement of a standard prehung exterior door |
Approximately $300–$1,200 for labor |
Labor may increase when the opening requires reframing, trim replacement, waterproofing, or disposal of the old unit. |
Request an itemized quote covering labor, materials, permits, and disposal. |
| Complete Project Budget |
Door unit, hardware, installation, trim, flashing, and finishing |
Approximately $500–$4,000 for many standard replacements |
A realistic total budget helps prevent choosing a door that exceeds the available funds after installation costs are added. |
Keep a contingency of about 10%–20% for concealed damage or framing repairs. |
| Common Door Width |
Single entry door |
Nominal widths commonly include 30, 32, and 36 inches; 36 inches is often selected for improved accessibility. |
The nominal door size does not equal the exact rough-opening size required for installation. |
Measure the existing slab, jamb, rough opening, and finished wall thickness. |
| Common Door Height |
Standard single entry door |
80 inches is common; 84- and 96-inch units are also available for taller openings. |
Height affects replacement compatibility, visual proportion, transom options, and framing requirements. |
Confirm the opening height at both sides and the center before ordering. |
| Rough Opening |
Framed opening prepared to receive a prehung unit |
Usually slightly larger than the door unit to allow leveling, shimming, and adjustment; exact clearance varies by manufacturer. |
Insufficient clearance can prevent the frame from being aligned and may cause rubbing or poor latch operation. |
Use the selected door's installation instructions rather than relying only on nominal size. |
| Swing and Handing |
Inswing or outswing; left-hand or right-hand configuration |
Determined by hinge location and the direction the door moves when viewed from the relevant approach side. |
Incorrect handing can interfere with walls, furniture, stairs, storm doors, or required exit paths. |
Mark the desired swing on a sketch and check clearance on both sides of the opening. |
| Weatherproofing |
Flashing, sill pan, compatible sealant, weatherstripping, and properly sloped threshold |
Required components depend on wall construction, cladding, exposure, and the installation method. |
Correct water management helps reduce leaks, rot, mold, and damage around the threshold and framing. |
Ask how the sill, jambs, head flashing, and exterior cladding will be sealed. |
| Energy Performance |
Insulated door core, low-emissivity glazing, weatherstripping, and tight installation |
Compare the product's certified U-factor and solar heat gain coefficient when listed; lower U-factor generally indicates better insulation. |
Door performance depends on the complete assembly and installation, not just the material of the slab. |
Check the product label or documentation and inspect the perimeter seal after installation. |
| Glazing Selection |
Solid panel, partial glass, full glass, decorative glass, or sidelites |
More glass generally increases daylight but can affect privacy, security, thermal performance, and price. |
Glass location and type influence natural light, visibility, heat gain, and impact resistance. |
Choose safety-rated glazing where required and consider privacy at street-facing entrances. |
| Hardware and Security |
Lockset, deadbolt, hinges, strike plate, peephole, or electronic access device |
Hardware must match the door thickness, bore spacing, backset, handing, and security requirements. |
Even a strong door can perform poorly if the frame, strike area, or fasteners are weak or incorrectly installed. |
Verify that long, suitable fasteners secure the strike and hinges to structural framing where appropriate. |
| Threshold and Floor Clearance |
Adjustable or fixed threshold with adequate clearance above the finished floor |
Clearance depends on flooring, threshold design, accessibility needs, and local requirements. |
Incorrect clearance can cause water entry, drafts, tripping hazards, or difficulty opening the door. |
Measure the finished floor level, including tile, hardwood, carpet, or future flooring. |
| Permit and Code Review |
Local building-permit, egress, safety-glazing, energy, and accessibility requirements |
Requirements vary by jurisdiction and by whether the opening size, structure, or exterior wall is changed. |
Noncompliant work may require corrections, delay resale, or create safety and insurance concerns. |
Contact the local building department before changing the opening or ordering a custom unit. |
| Existing-Opening Condition |
Sound framing, dry sill, square jambs, and intact surrounding wall |
Repair needs cannot be confirmed accurately until the existing trim and door unit are inspected or removed. |
Hidden rot, pests, water damage, or out-of-square framing can significantly increase the project cost. |
Include inspection and possible framing repair in the budget. |
| Measurement Checklist |
Width, height, jamb depth, diagonal measurements, threshold height, and exterior trim dimensions |
Take measurements at multiple points because older openings may not be perfectly square or level. |
Accurate measurements reduce ordering errors and help determine whether a standard or custom unit is appropriate. |
Record the smallest width and height measurements and provide photos to the installer. |
