Special Construction Estimating: Pre-Engineered Buildings, Pools and Clean Rooms

Special Construction Estimating (Division 13) covers the pricing of packaged or specialized structures — pre-engineered metal buildings, swimming pools, clean rooms, fabric structures and similar systems — that combine supply, engineering and installation.

Special construction is usually quote-driven. We prepare the take-off for foundations and interfaces, carry supplier packages, and price erection and finishes so that the whole system is covered.

What we measure and price

Specifications and CSI MasterFormat references

Division 13 includes 13 34 19 Metal Building Systems, 13 11 00 Swimming Pools and 13 21 00 Controlled Environment Rooms. We read the specification section alongside the drawings so that products, performance requirements, testing, warranties and allowances are priced the way the solicitation intends — not just what appears on the plan sheets.

Pre-bid review: what we check before pricing

• Scope definition: what is in your trade and what belongs to others, with inclusions and exclusions written down.
• Addenda and bulletins: every addendum is logged and its effect on quantities, alternates and unit prices is carried into the estimate.
• Requests for information (RFIs): conflicts between drawings and specifications are listed so they can be submitted before the question deadline.
• Alternates, allowances and unit prices: priced separately and tied to the bid form so the proposal is complete and responsive.
• Bid form and qualifications: required line items, bond and insurance requirements, prevailing-wage or Davis-Bacon language and any bid-day instructions are flagged.

Pricing considerations that move the number

• Supplier lead times and engineering responsibility.
• Foundation design from building reactions.
• Interface with MEP and finishes.
• Erection method, crane and access.

Submittals and shop drawings for this scope

Special construction relies on engineered shop drawings.

• Engineered shop drawings and calculations
• Foundation reactions and anchor-bolt plans
• Product data and warranties
• Erection and installation plans

We prepare shop drawings and submittal packages for many of these scopes, and we can resubmit after architect or engineer comments.

Common estimating mistakes we help you avoid

• Carrying only the supplier package and missing foundations, insulation and openings
• Ignoring local snow, wind and seismic requirements
• Missing permits and inspections specific to the system
• Under-pricing erection and cranes

What you get

• Marked-up plans showing every count and measurement
• Quantity takeoff organized by area, system and CSI section
• Material, labor, equipment and subcontract pricing (or takeoff only)
• Clear assumptions, inclusions, exclusions, alternates and unit prices
• Excel and PDF files ready to drop into your bid or post-bid scope sheets
• Support on addenda, clarifications and bid leveling after delivery

Who this is for

Pre-engineered building erectors, pool contractors and general contractors.

How it works

1. Upload your plans, specifications and addenda, or paste a plan-room link, with your bid due date.
2. We confirm scope, price and turnaround before any work starts.
3. Our estimators complete the takeoff and pricing and a second estimator reviews it.
4. You receive the files and we stay available for addenda, RFIs and post-bid clarifications.

Software and standards

We take off in digital takeoff tools such as PlanSwift and Bluebeam Revu, price with RSMeans-style cost data and your own unit prices where you provide them, schedule in Oracle Primavera P6 or Microsoft Project when needed, and organize quantities by CSI MasterFormat (Division 13). Estimating is done remotely from your drawings, so we support public and private projects in every state.

Why contractors outsource special construction estimating

Bid season compresses the time estimators have for each solicitation. Outsourcing the special construction takeoff and pricing lets your team cover more bids, respond to addenda quickly and keep an independent check on subcontractor and supplier numbers. You keep control of the bid: you review the quantities, adjust unit costs and decide the final price.

Public, private and prevailing-wage projects

We price this scope on public solicitations (IFB, ITB and RFP responses) and private open-shop projects alike. When the solicitation includes a prevailing-wage or Davis-Bacon wage determination, we apply the stated rates and fringe benefits to the labor in each line item and allow for certified payroll administration. See public bid estimating and our prevailing wage guide.

Related services and pages

Combine this scope with quantity takeoff, bid leveling and proposal support, pre-bid and post-bid support, shop drawings and CPM scheduling. Browse every CSI division page, read the CSI MasterFormat guide or check the bidding glossary.