Best Window & Door Estimating Software for Contractors in 2026
The best window and door estimating software depends on whether you install or fabricate. For commercial doors and windows subcontractors who count openings off plans and bid the Division 08 package — door, frame, hardware, and install — with a Schedule of Values for the GC, ScopeTakeoff is the strongest affordable fit. STACK and On-Center are established commercial takeoff platforms for counting openings. For fenestration fabricators who manufacture windows, Eyeconic and the specialist tools go deeper. Excel still works for simple, low-volume bids.
Window and door estimating software is not one category. Some tools are fenestration fabrication systems built around frame configurators, cut lists, mulling, and glass and hardware engineering — for the shops that actually make windows and doors. Others are commercial takeoff systems built around counting openings off plans and bundling door, frame, hardware, and labor per opening — for the subs who install Division 08 on commercial jobs.
This comparison is organized around who each tool is for, so you can match the software to your work — commercial install subcontracting versus fenestration fabrication.
Quick guide to who each tool is for: ScopeTakeoff → commercial doors and windows subs counting openings off plans with per-opening assemblies and SOV output. STACK → cloud takeoff with door and window assemblies and opening counts. On-Center → established on-screen count takeoff for doors, frames, and hardware. Eyeconic → deep fenestration fabrication and quoting. Excel → simple, low-volume manual estimates.
Quick comparison: best window & door estimating software 2026
| Feature | ScopeTakeoff | STACK | On-Center | Eyeconic |
|---|---|---|---|---|
| Who it’s for | Commercial install subs | Commercial takeoff | Commercial takeoff | Fenestration fabricators |
| Count openings off plans | Yes — web | Yes | Yes (desktop) | AI detection |
| Per-opening assembly (door+frame+hardware) | Yes | Assemblies | Door packages | Configurator |
| Hardware-set / fabrication logic | Line items | Line items | Hardware sets | Cut lists / mulling |
| SOV output for GC submission | Included | Varies | Bid output | Fab quote |
| Platform | Web (any device) | Web / Mac | Windows desktop | Specialist |
| Pricing style | $100/person/month | Quote / plan-based | Quote-based | ~$495+/mo per user |
Best window & door estimating software by use case
- Best for commercial doors and windows subcontractors: ScopeTakeoff
- Best cloud takeoff platform: STACK
- Best established count takeoff: On-Center (On-Screen Takeoff + Quick Bid)
- Best for fenestration fabricators: Eyeconic
- Best free option: Excel
1. ScopeTakeoff — Best for Commercial Doors & Windows Subcontractors
Who it’s for: commercial doors and windows subcontractors who count openings off plans on commercial, multi-family, healthcare, and institutional projects, build a per-opening package of door or window plus frame, hardware, and install labor, and submit a Schedule of Values to a general contractor. If you fabricate windows and need frame configurators, cut lists, and mulling logic, the fenestration specialists below will fit you better — and that is the honest answer.
For commercial Division 08, ScopeTakeoff supports PDF plan takeoff so you can count door and window openings by type directly on the drawings and the door and window schedule, then push those counts into per-opening assemblies. Instead of counting in one place and pricing in another, the takeoff feeds the estimate.
Each opening carries its own assembly: the door slab or window unit, the frame (including hollow metal), the hardware, sealant and trim, and install labor — all as line items you control, priced from your own costs or supplier quotes. Openings group by type so a 3070 hollow-metal pair or a fixed storefront window repeats cleanly across the schedule. Material and labor stay on separate rails, and ScopeTakeoff includes SOV exports for GC submission, unlimited projects, team estimating tools, multi-entity profiles, and proposal output. At $100 per person per month with a 14-day free trial, it runs in any browser, needs no Windows install, and is priced for subcontractors rather than fabrication shops.
- Built for commercial doors and windows takeoff and bidding
- Web-based — Mac, PC, tablet, mobile; no install
- Count openings off plans and the door/window schedule
- Per-opening assembly: door/window + frame + hardware + labor
- Openings group by type and repeat across the schedule
- SOV output for GC submission
- $100/person/month with no annual contract
- No fabrication: no cut lists, mulling, or frame configurator
- No automated hardware-set scheduling logic
- No live supplier price feeds
- Newer product with less name recognition
2. STACK — Best Cloud Takeoff Platform
Who it’s for: doors and windows contractors who want an established, cloud-based commercial takeoff platform that works across trades.
STACK is one of the most recognized construction takeoff platforms, with strong door and window takeoff. It lets you mark, count, and measure openings directly on plans, and build door assemblies with customizable options for frame material, door type, hardware, and finish, with pricing applied in one platform. It is web-based, runs on PC and Mac, and supports real-time multi-user collaboration. The tradeoff for smaller install subs is that it is a broad, multi-trade platform with plan-based pricing, and the depth can be more than a focused Division 08 sub needs if the main goal is fast bids with a clean SOV.
- Established, well-known commercial takeoff platform
- Mark, count, and measure openings on plans
- Door assemblies: frame, type, hardware, finish
- Web-based; works on PC and Mac
- Real-time multi-estimator collaboration
- Broader platform than a focused Division 08 sub may need
- Plan-based pricing, often higher than flat per-seat
- SOV output for GC submission varies by setup
- More to learn than a single-trade tool
3. On-Center — Best Established Count Takeoff
Who it’s for: doors and hardware contractors who want a long-established on-screen count takeoff paired with a dedicated bid tool.
On-Center’s On-Screen Takeoff is a long-standing standard for click-and-drag takeoff, with strength in counting doors, swings, frames, handles, locks, stops, and hinges across a project and keeping them organized by opening type. Its AI-assisted Takeoff Boost returns a first-pass count in seconds, and quantities flow into Quick Bid for door, frame, and hardware-set pricing and labor. The tradeoffs are that it is Windows desktop software, pricing is quote-based and oriented to established shops, and the toolset carries a learning curve compared with a focused web app.
- Long-established on-screen count takeoff
- Counts doors, swings, frames, hardware by opening type
- AI Takeoff Boost for a fast first-pass count
- Quick Bid handles door, frame, and hardware-set pricing
- Windows desktop — tied to one machine
- Quote-based pricing geared to established shops
- Two tools (takeoff + bid) to learn and maintain
- Bid output rather than a built-in GC SOV workflow
4. Eyeconic — Best for Fenestration Fabricators
Who it’s for: window and door fabricators and dealers who manufacture or configure fenestration products and need industry-specific estimating.
Eyeconic is specialized estimating, takeoff, and quoting software built exclusively for the window and door fenestration industry. It imports plans from PDF, DWG, or Revit, automatically detects and measures openings, and configures window assemblies with grids, reinforcements, frames, glass, and hardware, calculating costs and integrating with ERP systems like MiTek and QuickBooks. For a shop that fabricates or configures product, that depth is a real differentiator. The tradeoffs are scope and price: it is a premium, fabrication-oriented platform with modular pricing reported around $495 per month per user and up, and a learning curve — more than an install sub who mainly needs opening counts and a GC Schedule of Values.
- Built exclusively for fenestration fabrication and quoting
- AI opening detection from PDF, DWG, and Revit
- Frame, glass, and hardware configurators with grids and mulling
- ERP integrations (MiTek, QuickBooks)
- Premium pricing geared to fabricators, not install subs
- Fabrication depth is overkill for counting openings
- Steep learning curve
- Output geared to a fabrication quote, not a GC SOV
5. Excel — Best Free Option
Who it’s for: contractors doing a low volume of doors and windows bids who want a free, familiar starting point.
Most doors and windows contractors start with Excel — an opening count by type, a door-frame-hardware tally, and a material-and-labor sheet. It works at low volume. The problems start when you are bidding commercial jobs with large door and window schedules, where manual counts, per-opening assemblies, and hardware tallies become error-prone — and missing openings or under-counting hardware on a big schedule costs real money.
- Free and familiar
- Fully customizable for any opening schedule
- Useful for simple estimates
- Works as a backup tool
- No opening count tools or per-opening assemblies
- No PDF plan or schedule takeoff
- Door, frame, and hardware tallies are manual
- SOV formatting is manual for every GC
- Error-prone on large schedules
How to choose window & door estimating software
The first question is not features — it is whether you install Division 08 from plans or fabricate fenestration product. Start there, then match the criteria below.
- Install vs. fabricate: Commercial install subcontracting needs opening counts, per-opening assemblies, and SOV output for the GC; fabrication needs frame configurators, cut lists, and mulling. Weight the side that drives your revenue.
- Counting openings: Doors and windows are bid by the opening. The tool should count openings off the plan and the door/window schedule and organize them by type.
- Per-opening assemblies: Each opening is a package — door or window, frame, hardware, sealant, trim, and install labor. Look for assemblies that bundle these per opening rather than as loose line items.
- Hardware handling: Decide whether you need full hardware-set scheduling logic (a specialist strength) or whether hardware as a line item per opening is enough for your bids.
- Platform: Windows-only desktop tools tie you to one machine; web-based tools work from the office, the truck, or the field.
- SOV output: Commercial GCs require a Schedule of Values formatted to spec — confirm the tool produces it, not just a fabrication quote.
Recommendation for commercial doors and windows subcontractors: If you count openings off plans and submit to GCs, start with a takeoff-and-SOV estimating tool with per-opening assemblies rather than a fabrication platform. ScopeTakeoff is built around opening counts, per-opening door/frame/hardware/labor assemblies, and SOV output at $100/person/month.
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