Contractor Resources
Instant access to professional-grade calculators, estimating templates, and bidding guides to protect your profit margins and build smarter.
Articles & Guides (55)
View all →BidFlow vs STACK in 2026: Which Fits a 1-8 Estimator GC?
Head-to-head comparison of BidFlow and STACK for small commercial GCs. Takeoff, estimating, cost library handling, pricing, and setup time compared honestly.
Read articleBidFlow vs Togal.AI in 2026: Estimating vs Takeoff for Commercial GCs
Togal.AI automates takeoff from drawings. BidFlow automates estimating from past bids. They solve different problems. Here is when you need which, and when you need both.
Read articleBidFlow vs ProEst in 2026: Cloud Estimating for Mid-Market GCs
Honest comparison of BidFlow and ProEst (Autodesk) for mid-market commercial GCs. Assembly-based vs calibration-based estimating, pricing, and Autodesk ecosystem lock-in.
Read articleBidFlow vs Sage Estimating in 2026: When to Stay, When to Switch
Honest comparison of BidFlow and Sage Estimating for commercial GCs. When Sage is the right tool, when the per-seat math doesn't work, and what switching actually looks like.
Read articleCalculators (42)
View all →Spray Foam Insulation Cost Calculator
Estimate spray foam material, board feet, and installed cost for commercial walls and roofs. Closed-cell $1.50–$3.50/bf installed; open-cell $0.50–$1.50/bf. Three inputs, defensible bid range with regional adjustment.
Try calculatorEpoxy Flooring Cost Calculator
Estimate epoxy material, prep cost, and total installed cost for commercial floors. Single-coat $3–$5/sf, decorative flake $5–$12/sf, metallic $7–$15/sf. Splits prep cost separately so you can see the real bid.
Try calculatorMetal Building Cost Calculator
Estimate steel kit, foundation, erection, and shipping for commercial pre-engineered metal buildings. Shell-only kits $20–$35/sf; turnkey insulated $50–$80/sf. All four line items separated so kit-only quotes don't mislead.
Try calculatorAsphalt Driveway Calculator
Estimate the cost of your new asphalt driveway project with BidFlow's free calculator. Input dimensions, asphalt/base thickness, site conditions, and cost factors for a detailed estimate.
Try calculatorTemplates (7)
View all →Free Schedule of Values Template
Download our free Schedule of Values template — pre-loaded with CSI MasterFormat 2024 divisions, AIA G702/G703-compatible columns, allowance + alternate tracking, and pre-wired formulas. Excel + Google Sheets, ready for lender draws.
Download templateFree Change Order Template + GC Playbook
Download our free Change Order template with AIA G701 / G701S-compatible structure, time + cost impact tracking, markup schedule by trade (15% commodity / 22% MEP / 30% specialty), backup checklist, and a 5-page GC change-order management playbook.
Download templateFree Commercial Construction Budget Template
Download our free commercial construction budget template for Excel/Google Sheets. Track materials, labor, equipment, and subcontractor costs for commercial projects.
Download templateFree Construction Project Budget Template
Download our free construction project budget template for Excel/Google Sheets. Track materials, labor, equipment, and subcontractor costs to increase profitability.
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