Prehung steel door units that install faster

A pre-hung steel door package from Euwoo ships as a squared, factory-assembled door-and-frame unit, so crews spend less time correcting reveals and hardware alignment on site. Choose welded, knock-down (KD), or adjustable frames to match stud, masonry, and renovation openings, plus hinge and lock prep or optional factory-installed hardware.

Factory-assembled and aligned

Door, hinges, and frame are set and checked before shipping to reduce on-site fitting and adjustment.

Frame types for real jobsite conditions

Select welded, KD, or adjustable frames to match wall type, access constraints, and installation preferences.

Packaging and labeling for smoother installs

Each ready to install steel door unit is protected, labeled, and packed for safer delivery and faster staging.

Prehung steel door unit with frame
ISO 9001 manufacturing system (facility-level)
Fire-rated prehung assemblies available by configuration
B2B export packaging and global shipping support

Key features built for commercial schedules

Contractors and developers choose Euwoo when they need door-and-frame packages that reduce rework, standardize fit, and keep installation crews moving across dozens or hundreds of openings. These features focus on measurable jobsite outcomes: faster set, fewer adjustments, and documentation that helps procurement and field teams stay aligned.

Factory assembly of door and frame

Factory alignment that reduces rework

Site alignment issues are the hidden cost of slab-only doors: hinge-line twist, uneven reveals, and latch misalignment drive callbacks. Euwoo builds each prehung steel door with frame in a controlled fixture so the jamb is square, hinge locations match door reinforcements, and the latch edge meets the strike consistently. Before packing, the unit is test-fit and cycled to confirm smooth swing and reliable latching.

Frame types that match real wall conditions

Prehung units only save time when the frame matches the wall and the jobsite constraints. Euwoo offers welded frames for maximum rigidity and quick set, knock-down (KD) frames for projects where shipping volume or access requires field assembly, and adjustable frames for renovation openings where conditions vary between floors or buildings.

Hardware prep and optional factory-installed sets

Hardware coordination is one of the biggest schedule killers on door packages. Euwoo supports hinge and lock prep, reinforcements, and coordinated hardware locations based on your schedule, making it easier to keep openings consistent across a project. When required, we can also support requests for factory-installed hardware so the shipment arrives as a complete steel door unit.

Performance options for fire, acoustics, and weather

Not every opening needs the same performance. Euwoo can build assemblies for interior corridors, back-of-house utility spaces, or exterior entries by selecting the right combination of core, edge construction, and sealing strategy. For life-safety openings, fire-rated configurations can be specified with the correct door construction, frame details, and compatible hardware provisions.

Consistent finish across slab and frame

Finish problems show up fast in commercial environments: mismatched color between slab and frame, uneven sheen, and chipped edges after transport. Euwoo focuses on finishing the full assembly as a system, not separate parts. We can support factory prime or powder-coated finishes, and we can align finishing steps to reduce the need for jobsite touch-up.

Packaging designed for door-and-frame assemblies

A prehung assembly can lose its time-saving value if it arrives damaged or out of square. Euwoo uses packaging approaches designed to protect corners, edges, and frame faces during handling, consolidation, and ocean freight. Typical protection includes edge guards, corner blocks, wrap, and palletization based on quantity and destination requirements.

Commercial documentation and inspection checkpoints

B2B buyers need more than a product description; they need documentation that reduces risk. Euwoo supports submittal-ready details such as configuration summaries, basic dimensional confirmation, hardware prep notes, and packing information so procurement and field teams stay aligned.

Compare pre-assembled packages vs common alternatives

If you are considering a prehung commercial steel door package, the key question is whether you want to buy a verified assembly or coordinate separate parts and field alignment. This comparison focuses on scope, install effort, and risk for B2B projects.

Prehung unit vs slab-only comparison
Option What you receive Best for Trade-offs
Factory-assembled door + frame package (Euwoo) Aligned door-and-frame unit with coordinated prep and packaging Projects prioritizing faster installation, consistency, and reduced callbacks May require earlier coordination of handing, hardware schedule, and documentation
Slab-only steel door (no frame) Door leaf only; frame and alignment handled separately Small jobs with flexible schedules or existing frames in good condition Higher field labor and higher risk of fit/operation variation between openings
Wood door + frame Wood leaf and wood frame components Interiors where aesthetics are priority and traffic is moderate Lower dent resistance; may be less suitable for abuse-prone commercial zones
Aluminum storefront door Aluminum door system typically integrated with glazing/storefront Retail fronts and glazed entry systems Different scope and system requirements; not a direct replacement for most service/corridor openings

Choose factory-assembled when

  • Labor and schedule risk are significant
  • You have many repeated openings and need consistent operation
  • You want one party responsible for assembly alignment and packaging
  • You need labeling and documentation that supports staging and turnover

Choose slab-only when

  • You are reusing existing frames and conditions are stable
  • You have flexible install time and skilled crews for field alignment
  • You do not need repeatable labeling and staged delivery support

Where factory-assembled units add the most value

A prehung commercial steel door package is most valuable where labor efficiency, consistent fit, and predictable turnover matter more than saving a small amount on materials. These use cases reflect how contractors and developers typically justify pre-assembled door-and-frame procurement on real projects.

Commercial building door installation

Tenant improvements and fast-turn renovations

Problem:

Renovation schedules often compress door work into a narrow window after framing changes and before final finishes, and openings can vary due to existing conditions.

Solution:

Factory-assembled units reduce layout work and minimize field correction. Adjustable or KD frame options can help match retrofit constraints.

Outcome:

Crews spend more time setting and anchoring and less time troubleshooting swing, latch, and reveal issues.

Multi-family and hospitality corridors

Problem:

Large projects require repeatable opening performance across many units. Small inconsistencies become visible when dozens of doors are installed by multiple crews.

Solution:

Pre-assembled door-and-frame packages standardize fit and hardware locations. Submittal documentation and clear labeling make it easier to keep handing organized.

Outcome:

Uniform swing, latch, and appearance across the building reduces owner complaints and maintenance tickets.

Exterior service entries and back-of-house doors

Problem:

Exterior and semi-exterior openings see higher abuse, more air and water exposure, and stronger security requirements than typical interior doors.

Solution:

A prehung exterior steel door configuration can include appropriate corrosion protection, sealing strategy, and compatible accessories.

Outcome:

Improved door operation and sealing reduces complaints about drafts and misalignment, while robust construction lowers long-term maintenance.

Warehouses and industrial facilities

Problem:

High-traffic environments expose doors to impacts, vibration, and frequent cycles. Poorly aligned frames can lead to rapid hinge wear and latch issues.

Solution:

Factory alignment, reinforcement strategy, and coordinated hardware prep support heavier usage. Packaging protects frames and edges.

Outcome:

More reliable operation reduces downtime and service calls. Procurement teams benefit from a clearer scope of supply.

Multi-site retail rollouts and standardization programs

Problem:

Retail and franchise programs require consistent appearance and repeatable installation across different regions, contractors, and site conditions.

Solution:

Pre-assembled door-and-frame packages support standard specifications, consistent finishing, and repeatable hardware prep across locations.

Outcome:

Standardization reduces variation and makes quality more predictable across sites. It also simplifies reordering and replacement.

Typical specifications and configurable options

A prehung steel door with frame can be configured to match opening conditions, code requirements, and hardware schedules. The ranges below reflect common commercial options; final details should be confirmed in submittals based on your project drawings and requirements.

Steel door frame profile detail

Door slab construction

Door type
Single leaf or pair (by project requirement)
Commonly used for interior corridors, utility rooms, and service entries.
Door thickness
Typically 1-3/4 in (44.5 mm), other thicknesses by request
Confirm thickness based on hardware and frame compatibility.
Face sheet steel
Common commercial gauge options such as 18 ga (approx. 1.2 mm) or 20 ga (approx. 0.9 mm)
Gauge selection impacts dent resistance and project budget.
Core options
Honeycomb, polystyrene, polyurethane, mineral wool (by performance target)
Core selection impacts stiffness, sound control, and fire-rated configurations.
Edge and reinforcement
Lock and hinge reinforcement strategies based on hardware schedule
Confirm hardware early to ensure correct reinforcement and prep.
Openings and accessories
Vision lites, louvers, kick plates, flush bolts, and other accessory preparations (by request)
Accessory type and placement should be confirmed in drawings.

Frame and assembly options

Frame type
Welded, knock-down (KD), adjustable
Choose based on access, shipping, and installation preferences.
Frame steel
Common commercial gauge options such as 16 ga (approx. 1.5 mm) or 14 ga (approx. 1.9 mm)
Higher gauge thickness improves rigidity for heavy use openings.
Wall conditions
Stud, masonry, and renovation openings supported via profile selection
Provide wall type, thickness, and any special conditions for quoting.
Anchoring approach
Anchors selected based on substrate and opening condition
Confirm fastening method and site requirements with the installer.
Handing and swing
LH/RH, in-swing/out-swing (as specified)
Handing errors create costly rework; confirm early and label clearly.

Hardware preparation and compatibility

Hinge prep
Standard hinge locations and preparations based on door size and usage
Confirm hinge type and quantity with the hardware schedule.
Lock prep
Prep based on lock function and backset requirements (by schedule)
Provide lockset make/model or prep standard during quoting.
Closer and panic hardware prep
Reinforcements and prep can be aligned to specified hardware (by request)
Early coordination prevents field drilling and misalignment.
Electrified openings
Wiring paths and preparations can be planned for specified electrified hardware (by request)
Confirm power, access control scope, and hardware model in advance.

Performance and compliance

Fire-rated assemblies
Fire-rated prehung assemblies available by configuration (rating depends on construction and hardware)
Provide required rating, code standard, and hardware schedule for confirmation.
Smoke and draft control
Gaskets and sealing strategies can be specified for compatible openings
Compatibility depends on frame details and door bottom strategy.
Acoustic control
Improved acoustic performance supported through core and seal selection
Performance depends on full opening system and installation quality.
Exterior sealing
Weatherstripping, thresholds, and door bottoms (by configuration)
Confirm exposure level and drainage strategy for exterior use.

Finish, packaging, and logistics

Finish options
Factory prime or powder coat; color and texture by approval
Samples and approvals recommended for large projects.
Corrosion protection
Galvanized steel options and suitable coating systems for exposure conditions
Specify environment (coastal, humid, interior) to align materials.
Packaging
Edge/corner protection, wrap, and palletization based on shipment plan
Packaging can be adapted for mixed loads and phased deliveries.
Documentation
Packing list, labels, and submittal package support (by request)
Provide opening schedule to align labeling with installation sequence.

Need a submittal-ready package?

Send your opening schedule, wall type, handing, and hardware notes. We will confirm configuration and provide a quote with supporting documentation.

Request Submittals

Material, core, and finish options

Prehung assemblies perform best when material choices match the environment and usage. Below are common options we support for commercial door-and-frame packages; confirm the exact build with your project requirements.

Steel door skin and core options

Steel skin options

Best for: Interior commercial openings and general-purpose service doors

Common choices include cold-rolled steel for controlled interior environments and galvanized steel when additional corrosion protection is preferred. Selecting the right base steel supports finish durability and helps reduce corrosion risk during storage and installation.

Core selection

Best for: Balancing stiffness, sound control, and fire-rated configurations

Core options such as honeycomb, polystyrene, polyurethane, and mineral wool can be matched to project priorities. Core choice influences door rigidity, perceived quality, and compatibility with certain performance targets.

Frame material and profile

Best for: Matching wall conditions and installation approach

Frames can be configured for welded rigidity, KD shipping efficiency, or adjustable retrofit conditions. Providing wall type, thickness, and substrate details helps align frame profile and anchoring strategy to reduce installation corrections.

Seals and gasketing (when specified)

Best for: Improving closing feel, reducing air movement, and supporting performance details

Perimeter gaskets, door bottoms, and threshold interfaces can be specified based on opening needs. Seal strategy should be selected with the full door, frame, and floor condition in mind to avoid mismatched components.

Finish systems

Best for: Repeatable color and durability on multi-opening projects

Factory prime supports field painting, while powder coat supports higher durability and consistent appearance. For projects with brand or design standards, sampling and approval help maintain consistency across batches.

Certifications and compliance support

Commercial projects often require documentation to support procurement, inspection, and turnover. Euwoo aligns production and documentation so buyers can verify scope and reduce risk, especially on multi-opening orders.

Quality certification and inspection

ISO 9001 quality management system

Scope: Facility-level manufacturing and process control

Supports repeatable production, inspection checkpoints, and consistent documentation for large or repeat orders.

UL 10C fire-rated configurations

Scope: Fire-rated door assemblies depending on configuration

Helps buyers specify life-safety openings with the correct construction and compatible hardware requirements.

BS 476 fire test configurations

Scope: Fire performance depending on construction and test scope

Supports projects requiring fire test documentation aligned to specified standards and configurations.

CE marking support (market-dependent)

Scope: Applicable product documentation depending on destination requirements

Assists buyers serving markets where CE documentation is part of procurement.

Documentation support

  • Configuration summary for quoting and ordering
  • Packing list and labeling plan for jobsite staging
  • Material and coating information when requested
  • Fire-rated documentation aligned to specified configuration when applicable

Customization for project-specific openings

A complete steel door unit should match the opening, hardware schedule, and finish requirements without forcing field crews to improvise. Euwoo supports project customization with a quoting workflow designed for contractors, developers, and installation professionals.

Custom door schedule and labeling

Size, handing, and swing

Specify opening size, LH/RH handing, and in-swing/out-swing. For multi-opening projects, provide a door schedule to prevent mismatches and simplify labeling.

Frame selection

Choose welded, KD, or adjustable frames based on access, shipping, and installation method. Confirm wall type and thickness to align profile and anchoring approach.

Hardware prep and options

Provide the hardware schedule (hinges, lock function, closer, panic device, and any electrified needs). We can align reinforcements and preparation to reduce field drilling and correction.

Performance requirements

Fire-rated configurations, sealing strategy, and core selection can be matched to the opening requirements. Provide rating targets and compliance needs during quoting.

Finish and appearance

Prime or powder coat, color matching, and surface texture can be confirmed through sample approval for consistent results across batches.

Packaging and labeling

Export-safe packaging, edge protection, and project-specific labeling can be planned to support staged deliveries and faster jobsite distribution.

Quote checklist

  • Opening size and quantity (door schedule preferred)
  • Wall type and thickness (stud, masonry, renovation conditions)
  • Handing and swing per opening
  • Required fire rating (if applicable) and code standard
  • Hardware schedule (hinge type, lock, closer, panic device, electrified needs)
  • Finish requirement (prime or powder coat, color reference if needed)
  • Ship-to country/city and delivery format (full container, mixed load, phased)

Process

  1. 1Share drawings, photos, and opening schedule
  2. 2Confirm configuration and documentation requirements
  3. 3Approve samples or reference finish if required
  4. 4Production with inspection checkpoints and labeling plan
  5. 5Packaging and shipment aligned to the delivery plan
MOQ Guidance:

MOQ depends on configuration, finish, and hardware scope. Many projects start from mixed orders in the 10-50 set range; confirm at quotation.

Lead Time Guidance:

Lead time varies by configuration, documentation needs, and destination. Confirm the production and shipping plan during quotation, especially for phased deliveries.

Installation overview (field guide)

A ready to install steel door package still depends on correct shimming, anchoring, and opening verification. Use this guide to reduce common causes of drag, latch issues, and uneven reveals.

Prehung door installation steps diagram

Before you start

  • Verify rough opening size, plumb, and squareness
  • Confirm handing and swing match the door schedule
  • Check floor condition and planned finish height (important for clearances)
  • Stage shims, fasteners/anchors for the substrate, level, and measuring tools
  • Confirm hardware and accessories are present per packing list
1

Set the unit in the opening

Center the frame in the rough opening and verify the assembly is not twisted. Protect finished surfaces during handling.

2

Plumb and shim the hinge jamb

Start with the hinge side. Shim behind hinge locations and at recommended points to keep the jamb straight and stable.

3

Square the head and align the strike jamb

Square the head jamb, then align the strike jamb to achieve consistent reveal and reliable latching. Avoid pulling the frame into a bow.

4

Anchor the frame to the substrate

Use anchors appropriate to the wall type (stud or masonry). Tighten gradually and re-check plumb and square as you fasten.

5

Check swing and latch function

Cycle the door several times. Confirm smooth swing, no rubbing, and consistent latch engagement. Make adjustments by shimming and anchoring, not by forcing hardware.

6

Install or complete hardware

Install locksets, closers, panic devices, and seals as specified. Confirm all fasteners engage reinforcements where intended.

7

Seal and finish

Apply perimeter sealants where required and complete finishing. For exterior or smoke control applications, confirm gasket continuity and door bottom/threshold interface.

Common mistakes to avoid

  • Anchoring before the hinge jamb is fully plumbed and shimmed
  • Over-tightening fasteners and pulling the frame out of square
  • Ignoring floor finish height, leading to clearance issues
  • Mixing handing or hardware between openings during staging
  • Using hardware adjustment to compensate for a twisted frame

FAQ

Answers below focus on real procurement and installation questions from contractors, renovation teams, and developers sourcing door-and-frame packages.

It is a door-and-frame assembly that is built and checked together before shipment. Instead of receiving only a slab, you receive a coordinated set where the frame, hinge locations, and basic operation are aligned as part of production. This reduces field layout and helps installers focus on shimming, plumb, and anchoring rather than correcting mismatched parts.
Yes. Frame selection should match jobsite realities, not just preference. Welded frames typically provide maximum rigidity and can support faster set when access and shipping allow. Knock-down (KD) frames can be helpful when shipping volume, jobsite access, or staging constraints make field assembly a better fit. Adjustable frames can be useful for retrofit conditions where wall thickness or opening conditions vary.
We can support requests for pre-installed hardware depending on the project scope and the hardware model requirements. Many buyers start with hardware preparation and reinforcements aligned to a hardware schedule, then decide whether factory installation makes sense based on labor constraints and standardization goals.
The fastest quotes come from a simple checklist: opening sizes and quantities (a door schedule is ideal), wall type and thickness, handing and swing direction, required performance (fire-rated or not), and the hardware schedule. Also share finish requirements and the ship-to destination so packaging and logistics can be planned correctly.
Yes, fire-rated configurations are available, but the rating depends on the complete assembly: door construction, frame details, hardware compatibility, and installation requirements. To confirm the correct configuration, provide the required rating and the code standard your project references, along with the hardware schedule.
Yes. Exterior and semi-exterior openings typically require a coordinated sealing approach, which can include perimeter gaskets, door bottoms, and threshold interfaces depending on the site condition and exposure level. Share whether the door is fully exterior, under a canopy, or in a semi-conditioned service area during quotation.
Assemblies are protected to prevent the common damage points that create rework: corners, edges, and frame faces. Packaging can include edge guards, corner blocks, wrapping, and palletization based on quantity and shipment plan. Clear labeling and packing lists also reduce jobsite handling mistakes.
Common options include factory prime for field painting and powder coat for durable, repeatable finishes. For projects where appearance consistency matters across many openings, sampling and approval are the most reliable way to lock the finish target before production.
Yes. Mixed-size orders are common in commercial projects, and phased delivery can reduce site congestion and improve installation flow. The key is documentation: a door schedule, labeling plan, and packing list that clearly ties each unit to its opening.
Most door-related callbacks come from frame twist, incorrect shimming, or anchoring that pulls the frame out of square. Start by verifying the rough opening and floor condition, then plumb and shim the hinge jamb before anchoring. Avoid over-tightening fasteners and re-check plumb and square as you work. A repeatable field checklist and consistent installer training typically deliver the biggest reduction in punch-list issues.

Get a fast quote for your door schedule

Euwoo helps contractors, developers, and renovation teams buy door-and-frame packages that install faster and reduce callbacks. Share your opening schedule and requirements, and we will confirm configuration, documentation needs, and a shipment plan that supports jobsite staging.

  • Frame options: welded, KD, or adjustable to match wall conditions
  • Hardware coordination: prep and reinforcement aligned to your schedule
  • Fire-rated configurations available by request
  • Export-safe packaging and clear labeling for multi-opening projects

What to send

  • Door schedule (sizes, quantities, handing, swing)
  • Wall type and thickness
  • Performance requirements (fire-rated, exterior sealing)
  • Hardware schedule
  • Finish requirement
  • Ship-to destination and delivery preference
Packaged door units ready for shipment