Preparing a swing-sliding door BOQ looks straightforward until quotations start arriving. Small gaps in panel configuration, glazing, hardware, finish, threshold design, or installation scope can lead to very different prices for what appears to be the same door.
This creates problems during tender comparison. One supplier may include locks, sealants, freight, and installation, while another prices only the door system. The lowest quotation may therefore not represent the lowest final project cost.
A clear swing sliding door BOQ removes these uncertainties. It gives every bidder the same pricing basis and helps quantity surveyors, contractors, architects, developers, and procurement teams compare products, identify exclusions, control budgets, and reduce variations after contract award.
What Is a Swing-Sliding Door BOQ?
A swing-sliding door BOQ is a bill of quantities item that defines the quantity, dimensions, configuration, materials, glazing, hardware, finish, accessories, and required work for a swing-sliding door system.
The BOQ should connect directly with the door schedule, drawings, and project specification.
A quality swing-sliding door system can include several moving panels, tracks, hinges, rollers, locks, seals, and other components. These details affect both the product cost and installation requirements.
A good BOQ should answer one basic tender question: What exactly must the supplier include in the quoted rate?
Information to Collect Before Preparing the BOQ
Do not begin with the price. Begin with the project information.
Check the architectural drawings, door schedule, specification, structural opening, floor level, and any relevant details before preparing quantities.
| BOQ Information | What to Confirm | Why It Matters |
| Door reference | Door mark or schedule ID | Connects the BOQ with drawings |
| Quantity | Number of identical doors | Determines total requirement |
| Dimensions | Width × height | Affects frame, glass, and hardware |
| Panel layout | Number and type of panels | Controls system configuration |
| Opening direction | Sliding and swing direction | Affects usability and fabrication |
| Material | Aluminium or specified system | Influences strength and price |
| Glazing | Glass type and build-up | Affects safety, weight, and performance |
| Finish | Colour and finish system | Influences appearance and cost |
| Hardware | Locks, handles, hinges, rollers | Major cost and performance factor |
| Installation scope | Supply only or installed | Prevents tender exclusions |
Confirm the Opening Size
State clearly what the dimensions represent.
A structural opening is not always the same as a finished opening or overall frame dimension. Finishes, tolerances, waterproofing, floor build-up, and installation gaps can reduce the final space available for the door.
For custom manufacturing, final site measurements should normally be verified before production.
This becomes especially important when the opening is large or the floor and threshold must align closely.
Define the Swing-Sliding Door Configuration
“Swing-sliding door” alone is not enough for accurate pricing.
The BOQ should describe how the system operates. State the panel quantity, active panel, sliding direction, swing direction, and where the panels move or park when the opening is fully opened.
For example, a project may require four panels where one panel works as the normal access door and the remaining panels slide and swing when a wider opening is required.
Clear configuration details reduce pricing assumptions.
This swing-sliding door installation guide also explains why panel alignment, tracks, frame positioning, hardware adjustment, and site preparation need to be considered before installation.
Include the Required Clear Opening
Overall door width and usable clear opening are not always the same.
Frames, panel widths, parking positions, and hardware can reduce the actual passage width. Where accessibility, equipment movement, or high pedestrian traffic is important, state the required clear opening separately.
This is an important BOQ detail that is often missed.
Specify the Frame, Glass, Finish, and Seals
The material description should provide enough information for comparable quotations without adding unnecessary technical wording.
Where the exact system has already been selected, use the approved project specification. Where it has not, state minimum performance requirements and allow compliant manufacturer proposals.
| Component | Information to Include | Main Cost Effect |
| Frame | Material and required system | Strength and durability |
| Glass | Type, thickness, or build-up | Safety and performance |
| Finish | Powder coating, anodizing, colour | Appearance and durability |
| Seals | Weather seals or gaskets | Air and water control |
| Threshold | Raised, low, flush, or recessed | Accessibility and installation |
| Track | System type and location | Operation and floor coordination |
| Fixings | Suitable fixing requirement | Installation security |
Safety glass requirements should follow the applicable building code and project specification.
For exterior doors, the BOQ may also need requirements for air leakage, water penetration, wind pressure, thermal performance, or acoustic performance where these are part of the design brief.
Avoid adding performance values without approved design information.
Do Not Treat Hardware as a Minor BOQ Item
Hardware can significantly affect the cost of a swing-sliding door.
Depending on the system, the hardware package may include rollers, hinges, guides, handles, locks, catches, stoppers, panel connectors, track components, and adjustment mechanisms.
Larger or heavier glazed panels may require higher-capacity hardware.
The BOQ should also identify special requirements such as access-control locks, child-safe hardware, door closers, keyed cylinders, pull handles, or project-specific security features.
If the manufacturer may select the hardware, state the required function and performance instead of simply writing “standard hardware.”
Include the Threshold and Drainage Requirements
The threshold is one of the most important details for cost and site coordination.
A standard raised threshold may have different preparation requirements from a low-profile or recessed system.
Flush-looking installations can require additional coordination with screeds, flooring, waterproofing, and drainage.
The BOQ should therefore identify the intended threshold arrangement and clarify which trade is responsible for surrounding floor preparation.
For external openings, also check whether drainage channels, waterproofing connections, or weather seals are needed.
These details can influence both tender price and long-term door performance.
Choose the Correct BOQ Measurement Method
There is no single measurement method that applies to every project.
A complete proprietary door assembly may be measured by number, each, or set. Other contracts may measure doors or glazing by area.
Always follow the measurement rules stated in the project documents.
For example:
| Door Ref. | Size | Configuration | Unit | Quantity |
| SD-01 | 2400 × 2400 mm | 3-panel swing-sliding | No. | 4 |
| SD-02 | 3600 × 2400 mm | 4-panel swing-sliding | No. | 2 |
| SD-03 | 4800 × 2700 mm | 6-panel swing-sliding | No. | 1 |
Do not combine different sizes or configurations under one BOQ rate merely because they belong to the same door family.
Panel size and quantity can change the aluminium, glass, hardware, manufacturing, and installation requirements.
What Should Be Included in the Swing-Sliding Door Rate?
The tender rate should match the commercial scope stated in the BOQ.
For an installed door package, the rate may need to include considerably more than the factory price of the frame and panels.
| Cost Element | Typical Items |
| Door system | Frames, panels, tracks, profiles |
| Glazing | Glass, processing, gaskets, beads |
| Hardware | Rollers, locks, hinges, handles |
| Finishing | Powder coating or anodizing |
| Fabrication | Cutting, machining, assembly |
| Logistics | Packing, freight, insurance, handling |
| Installation | Labour, fixings, sealant, adjustment |
| Commercial costs | Overheads, profit, taxes where applicable |
When planning a complete aluminium package, understanding the factors affecting aluminium window prices can also help cost planners assess how size, glass, finish, hardware, quantity, and logistics influence custom fenestration costs.
Include Shipping and Landed Cost in Tender Planning
Factory price and delivered project cost are different figures.
For imported swing-sliding doors, tender planning may need allowances for export packaging, inland transport, ocean or air freight, insurance, customs charges, destination handling, and final transport to site.
The selected delivery term should also be clear.
EXW, FOB, CIF, and DDP quotations can include different supplier responsibilities. Tenderers should therefore price on the same delivery basis whenever possible.
Proper window and door packaging for international shipping is particularly important for large glazed panels, finished aluminium frames, tracks, and hardware.
Clarify Installation and Trade Interfaces
A BOQ should state where the door supplier’s responsibility starts and ends.
Otherwise, installation-related work can easily fall between different subcontractors.
The project team should clarify responsibility for:
- Structural opening preparation and final dimensions
- Threshold recesses, flooring, waterproofing, and drainage
- Fixings, perimeter sealants, and making good
- Unloading, lifting, storage, and protection
- Electrical connections for access-control hardware
- Final adjustment, cleaning, testing, and handover
These items do not always belong to the same contractor. The important point is to allocate responsibility clearly before quotations are compared.
Require Shop Drawings Before Manufacturing
Custom swing-sliding doors should be coordinated through approved shop drawings before production.
Shop drawings allow the project team to confirm dimensions, panel arrangement, opening direction, profiles, glazing, hardware, threshold details, fixings, interfaces, and finishes.
They also help identify clashes before fabrication begins.
Where required, the tender documentation can request finish samples, glass information, hardware schedules, technical data, and product samples as part of the approval process.
This makes the transition from BOQ pricing to manufacturing more controlled.
Add Quality-Control Requirements
A competitive quotation is useful only when the supplied product matches the approved specification.
Quality checks may cover frame dimensions, profile finish, glass, hardware operation, panel alignment, locks, seals, tracks, assembly, labeling, and packaging.
For related quality considerations, review this aluminum window quality control checklist. Many of the same principles apply when controlling the production quality of custom aluminium door systems.
Inspection requirements should be agreed before shipment, particularly for large overseas orders.
Example Swing-Sliding Door BOQ Description
A practical BOQ description could read as follows:
SD-01 – Custom aluminium swing-sliding door, 2400 mm wide × 2400 mm high, three-panel configuration, complete with specified glazing, aluminium framing, approved finish, tracks, rollers, hinges, locks, handles, seals, threshold, fixings, accessories, installation, adjustment, and testing, all in accordance with approved shop drawings and project specifications. Unit: No.
This is an example only.
The final BOQ description should use actual project information rather than assumed dimensions, glass specifications, finishes, or hardware.
Common Swing-Sliding Door BOQ Mistakes
- Describing only the width, height, and quantity
- Failing to state the number and operation of panels
- Leaving glazing, finish, or hardware undefined
- Ignoring threshold, drainage, and floor coordination
- Comparing factory supply prices with installed prices
- Combining different door configurations under one rate
Retrofit projects require additional care.
If an existing sliding door is being modified or replaced, demolition, frame removal, floor repairs, waterproofing, finishes, and surrounding construction may need separate allowances. The requirements differ from new construction.
See this guide on how to convert a sliding door to a swing door for related planning considerations.
How to Compare Swing-Sliding Door Tender Prices
Do not compare only the final amount.
First confirm that each tenderer has priced the same scope.
Review door configuration, glass, profiles, finish, hardware, threshold, installation, packaging, delivery basis, testing, warranty, and exclusions.
Any alternative product should be shown separately from the compliant base tender.
This makes value engineering easier because the project team can see exactly what changes when a lower-cost option is proposed.
If the design team is still considering the system itself, these reasons to upgrade to swing-sliding doors provide additional context on functionality and space use.
What Should You Send the Manufacturer for a Quote?
A manufacturer can prepare a more accurate quotation when the enquiry contains complete and consistent information.
Provide drawings, door schedules, dimensions, quantities, panel configuration, glass requirements, finishes, hardware requirements, project location, and delivery expectations.
Clearly identify information that is still provisional.
For projects that include windows and doors, coordinating glass, aluminium finishes, hardware appearance, packaging, and shipping across the package can simplify procurement.
Oridow also manufactures custom aluminum windows for residential, commercial, development, and wholesale projects.
Why Source Custom Swing-Sliding Doors from Oridow?
Oridow supports builders, contractors, architects, developers, importers, and wholesalers that require project-specific aluminium windows and doors rather than standard retail sizes.
Manufacturing Experience Since 2008
Oridow has experience supporting custom residential, commercial, development, and wholesale fenestration projects.
Fully Custom-Made Solutions
Door sizes, panel configurations, glass, aluminium finishes, hardware, opening directions, and other details can be produced according to approved project requirements.
Quality-Controlled Production
Production can include checks covering dimensions, aluminium finishes, glazing, hardware, assembly, operation, and packaging before shipment.
Factory-Direct Pricing and Global Project Support
Customers can request factory-direct quotations, shop-drawing coordination, export packaging, and international shipping support, including suitable delivery options based on the destination and project requirements.
Ready to Prepare Your Swing-Sliding Door Package?
Oridow helps contractors, developers, architects, builders, and wholesalers source custom aluminium swing-sliding doors directly from an experienced manufacturer in China.
Send your door schedule, drawings, sizes, quantities, glass requirements, finishes, hardware details, delivery location, and project timeline.
The Oridow team can support product selection, custom manufacturing, quotation preparation, shop-drawing coordination, quality control, packaging, and international delivery.
Request a free quote today to discuss your swing-sliding door requirements and receive a project-specific proposal.
Frequently Asked Questions
Can I request a swing-sliding door quotation before final drawings are complete?
Yes. A preliminary quotation can be prepared using estimated sizes and specifications. However, clearly identify provisional information. Final pricing and manufacturing details may change after dimensions, glazing, hardware, panel layouts, and other requirements are confirmed.
Who should verify the final opening dimensions?
The responsible contractor, installer, consultant, or manufacturer representative should be identified by the project team. For custom production, verified dimensions should be agreed before manufacturing begins because changes after fabrication can be expensive.
Should spare hardware be included in the BOQ?
It can be useful for large developments, remote projects, hotels, commercial buildings, or overseas projects. Spare rollers, locks, handles, seals, or other service parts can be listed separately so the client can decide whether to include them.
Can swing-sliding doors include access-control systems?
Potentially, yes. Compatibility depends on the door design and selected hardware. Electric locks, card readers, sensors, and other access-control equipment should be coordinated early because electrical work and door hardware may involve different contractors.
Are swing-sliding doors suitable for coastal locations?
They may be suitable when the aluminium finish, hardware, fixings, glazing, seals, and maintenance requirements are selected for the local environment. Coastal exposure should be identified during specification rather than treated as a standard installation.
When should the door supplier provide shop drawings?
Shop drawings should normally be submitted after the project requirements are sufficiently defined and before manufacturing begins. This allows the project team to review dimensions, panel configuration, glazing, hardware, finish, threshold, and fixing details.
How should alternative door systems be handled during tender?
Ask tenderers to price the specified base system first. Any alternative should be presented separately with clear differences in materials, glazing, hardware, performance, warranty, lead time, and price. This keeps the tender comparison fair and transparent.
