How to Compare Steel Structure Quotations: Price, Materials, Design and Delivery

Many buyers of steel buildings will receive quotes from several steel building suppliers; some will appear to be very inexpensive and others will seem to be a very high price. However, you cannot compare one quotation of a steel building to another solely by looking at the final price.

A credible quote must have a clearly detailed steel weight, material specifications, design parameters, roofing and walling material types, a coating system specification, bolting specification, accessories list, packaging method, method of delivery, and technical support details. In the absence of legibility with regard to any or all of these points, cheap pricing may lead to poor quality products with costly issues once installation is completed.

This guide outlines steps to follow in order for overseas buyers to compare pricing, material, design, coating system, packaging, and delivery quotes submitted by a steel structure vendor prior to actually ordering the steel structure.

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Why Steel Structure Quotation Comparison Matters

Structures made from steel are custom-made products. While drawings will illustrate that a steel warehouse, workshop, factory, agricultural or logistic warehouse, etc. can appear very similar, the price offered for these steel buildings can vary considerably due to the design conditions and the materials used.

A quotation may change because of:

• Building size
• Steel frame weight
• Steel grade
• Wind load and snow load
• Span and column layout
• Roof and wall material selection
• Paint system
• Door and window requirements
• Accessories included or excluded
• Packing and shipping method
• Drawing and technical support

If you only compare the total cost of the project, you run the risk of selecting one that has not been designed properly. The proper way to compare the quotes would be to look at the complete project scope.

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1.Compare the Building Size and Basic Design Conditions

Before comparing prices, make sure all suppliers are quoting based on the same basic information.

Check whether each quotation clearly includes:

• Building length
• Building width
• Eave height
• Ridge height
• Span
• Column spacing
• Roof slope
• Project location
• Building use
• Wind load
• Snow load
• Crane load, if required

If one supplier gives the wind load at a lesser value and does not consider the snow load, then the steel frame of the system would become lighter and cheaper to construct, but it may prove unsuitable for the building site.

Wherever overseas projects are concerned, a buyer should as a minimum confirm that the supplier comprehends the local climate and local building code.

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2.Compare Steel Frame Weight

The steel weight in a steel structure quotation is the major cost determining factor. Reducing the steel weight will reduce the cost of the steel structure, however, it can also indicate a change in the design criteria, smaller section sizes, or a lower level of overall structural safety.

When comparing steel structure price, ask suppliers to provide:

• Total steel frame weight
• Main steel frame weight
• Secondary steel weight
• Steel column and beam specifications
• Purlin specifications
• Bracing system details
• Bolt and connection part quantities

A quote can sometimes be very low if it is based on a lighter than normal steel frame. Make sure that the structure has been designed to meet your needs for your job before purchasing or signing any contracts for this structure.

A lighter weight does not necessarily mean that it is the best choice for you. The size of the building, span, wind loads, and snow loads, crane use, and longevity of the structure must all be considered when choosing the most appropriate steel framing for your building.

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3.Compare Steel Material Specifications

Different steel materials can affect strength, performance, and cost. A reliable steel structure quotation should clearly list the material specifications.

Buyers should check:

• Steel grade
• Main frame material
• Purlin material
• Bolt grade
• Welding requirements
• Surface treatment
• Material standard, if required

Don’t accept “high-quality steel” or other vague descriptions – you need the exact material specifications for the project. Do not accept generic marketing descriptions for real projects.

Do not compare prices of two materials using different steel grades (or standards) from different vendors.

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4.Compare Structural Design Scope

Some quotes just show what kind of steel is used while other quotes from suppliers give more detail in the price; some suppliers will also provide design help and drawings. These differences in the way that suppliers quote will affect the final value of the project.

A complete quotation may include:

• Structural design support
• General arrangement drawing
• Steel frame drawing
• Installation drawing
• Foundation reference drawing
• Roof and wall panel layout
• Bolt layout
• Material list
• Component marking list

Overseas constructions/drawings are crucial and the installation teams require clear guidance for the same. If the steel supplier provides the material to install, but does not provide accompanying drawings, it would cause installation problems later.

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5.Compare Roof and Wall Materials

Material used to build the walls of the roofs of any structure provides a drastic variation in cost. For example, a steel structure made from standard colour steel single panel will require a significantly less amount of money when compared to an equal structure constructed from insulated sandwich panels.

When comparing quotations, check whether the roof and wall system includes:

• Roof panels
• Wall panels
• Panel thickness
• Steel sheet thickness
• Panel color
• Insulation material
• Flashing and trim
• Gutters and downpipes
• Fasteners and accessories

Available material options from Bingfa Steel Structure include:

• Color Steel Sheet
  Economical roof and wall cladding for standard steel buildings.
• EPS Sandwich Panel
  Cost-effective insulated panel for basic thermal insulation.
• PU Sandwich Panel
  Suitable for better thermal insulation and temperature control.
• Rock Wool Sandwich Panel
  Suitable for fire resistance and sound insulation.
• Rock Wool Sandwich Panel with PU Sealing Edge
  Suitable for higher-quality steel buildings requiring fire resistance, insulation, and improved edge sealing.

If one supplier includes sandwich panels and another includes only color steel sheets, the quotations are not comparable.

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6.Compare Paint and Coating System

Often times, the paint system are ignored when getting quotes for steel structure. However, paint quality play an essential role in determining the rust protection and aesthetics of the steel structure and the cost for maintaining it over time.

Buyers should check:

• Surface treatment method
• Primer type
• Topcoat type
• Whether intermediate coat is included
• Required dry film thickness
• Paint color
• Coating inspection method
• Touch-up paint supply
• Protection during packing and loading

A cheaper quote could be achieved through application of a simpler class of coating or lower levels of dry film thickness. In cases when a coastal, humid, or industrial location is involved or the length of time the coating will be on the substrate (long service life), a stronger coating system may also be required.

Before placing the order confirm whether the paint system meets the requirements of the project environment.

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7.Compare Bolts, Accessories, and Small Parts

Steel structure buildings require many small parts. Missing accessories can delay installation and increase local purchasing cost.

A complete quotation should clearly include:

• High-strength bolts
• Anchor bolts, if included
• Connection plates
• Bracing parts
• Tie rods
• Purlin accessories
• Roof screws
• Wall screws
• Flashing
• Trim
• Gutters
• Downpipes
• Door and window accessories

Some low quotations may exclude accessories or list them unclearly. Buyers should ask for a complete material scope before comparing prices.

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8.Compare Door, Window, Ventilation, and Optional Systems

Doors, windows, skylights, ventilation systems, crane beams, mezzanine floors, and office rooms can all affect the final cost.

Check whether the quotation includes:

• Roller shutter doors
• Sliding doors
• Access doors
• Windows
• Louvers
• Skylights
• Ridge vents
• Crane beams
• Mezzanine floors
• Office area structure
• Loading area requirements

If your metal storage building requires these items to be included in your quotation it would be best to have them included so that your final cost for the project does not end up being more than what you anticipated.

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9.Compare Fabrication and Quality Control

Steel structure quality is not only about raw materials. Cutting, drilling, welding, assembly, painting, marking, and packing all affect the final result.

When comparing suppliers, ask whether they can provide:

• Material inspection
• Cutting and drilling control
• Welding inspection
• Dimension checking
• Paint inspection
• Component marking
• Packing inspection
• Production photos
• Loading photos

For overseas steel structure projects, quality control before shipment is very important because repair after delivery can be difficult and costly.

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10.Compare Packing and Delivery Terms

The way a steel structure is packed and shipped might also influence the total price paid. Lower price bids may not include appropriate packaging or use a different set of shipping terms.

Check whether the quotation clearly states:

• Packing method
• Component marking method
• Container loading plan
• Protection for painted steel members
• Packing list
• Delivery time
• Shipping destination
• Trade terms
• Whether freight is included
• Whether loading photos will be provided

Good packing helps reduce transportation damage and makes installation easier when the materials arrive at the site.

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11.Compare Delivery Time and Production Schedule

Delivery time is important for overseas buyers. A low price is not useful if the supplier cannot meet the project schedule.

Before ordering, confirm:

• Drawing confirmation time
• Production lead time
• Painting and drying time
• Packing time
• Loading schedule
• Shipping arrangement
• Expected delivery time
• Delay risk

For urgent projects, suppliers with better production coordination and packing experience may provide more reliable delivery support.

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12.Watch for Hidden Costs

When comparing steel structure quotations, buyers should pay attention to possible hidden costs.

Common hidden costs include:

• Missing bolts or accessories
• Excluded roof and wall trims
• Excluded gutters and downpipes
• No installation drawings
• No packing protection
• No coating inspection
• Extra charge for revised drawings
• Extra freight cost
• Local purchase of missing materials
• Site delay due to unclear marking

A quotation that looks cheaper at first may become more expensive later if important items are excluded.

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Questions Buyers Should Ask Before Accepting a Quotation

Before confirming an order, ask the supplier these questions:

1. What is included in the quotation?
2. What is excluded?
3. What is the total steel weight?
4. What steel grade is used?
5. What roof and wall materials are included?
6. What paint system is included?
7. What is the dry film thickness?
8. Are bolts and accessories included?
9. Are installation drawings provided?
10. How are steel components packed and marked?
11. What is the delivery time?
12. Can you provide production, inspection, packing, and loading photos?

Clear answers to these questions can help reduce procurement risk.

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Why Choose Bingfa Steel Structure?

Bingfa steel structure designs customized solutions for our overseas customers by using steel structures and sandwich panels. We assist our purchasers with the scope of full quotation prior to their order including the design of the steel frame roof and wall materials, coating system, packaging, shipping, and project assistance.

Our solutions include:

• Steel warehouse buildings
• Prefab steel warehouses
• Steel structure workshops
• Industrial steel buildings
• Agricultural steel buildings
• Logistics steel warehouses
• Steel factory buildings
• Sandwich panels
• Color steel sheets
• Roof and wall enclosure systems

We provide quotations based on actual project requirements, not only rough building size.

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