1
Permissions
File and worksheet-level controls cannot reliably match project, package, region and board-level access needs.
The governed commercial platform for construction.
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Replacing fragile commercial spreadsheets with auditable workbooks, integrated data and enterprise-grade visibility.
Outtrn
/ˈaʊt.tɜːn/ noun
THE INDUSTRY TERM
In construction, the outturn is the final actual cost or margin delivered at project completion — what the numbers land on when it’s all done, measured against the original forecast.
Every commercial team is managing the distance between today’s forecast and their eventual outturn. That gap is where risk lives.
The spreadsheet delivered outturn visibility.
Until scale made it a liability.
Two tier-1 contractors. The same pattern.
Contractor A — Commercial Process at scale
Complexity of a single project Commercial workbook:
124
Worksheets
559
Tables
29
VBA modules
19.6k
Formulas
Contractor B — Commercial Issues on Major Projects
Complexity of a single project Commercial workbook:
511
Worksheets
124k
Formulae
1k+
Modules
6 Days
Lost per month
Both assessments confirm the same pattern: as commercial workbooks scale, governance, performance and maintainability break down.
Five pain points Outtrn is designed to remove
2
Data integrity
Formulas, lookups and manual edits can change without a clean audit trail.
3
Scalability
Large workbooks slow down, become fragile and are difficult to support across many projects.
4
VBA / macros
Automation helps users, but macros create maintenance, compatibility and security exposure.
5
Enterprise visibility
Project files hold valuable commercial data, but it is hard to centralise, validate and analyse at portfolio level.
THE PLATFORM
Outtrn is not another spreadsheet clone.
It is a governed platform: Excel-like where users need flexibility, database-backed where the business needs control.
Familiar
Spreadsheet-style editing, formula bar, working tabs and controlled cross-tab references.
Governed
Structured tabs, field validation, permissions, audit logs and version history on every change.
Connected
Integrations, analytics models, BI dashboards and AI-ready commercial data for the whole portfolio.
PRODUCT TOUR
Click through the functionality that makes the workbook valuable.
Explore the strongest product areas: the dashboard with S-curves and package margin charts, the package subledger with feeder-sheet input, upstream/downstream claims, scenario modelling, tasks, trends and granular permissions.
Dashboard · Commercial Summary
Forecast value£42.8m
Final margin7.8%
Package margin£3.3m
Risk exposure£1.4m
S-curve: forecast vs actual
ForecastActual
Package margin chart
Dashboard strength
S-curves, movement and package margin in one place
The landing page now shows the same executive story as the app: headline margin, risk exposure, live S-curves and package margin performance.
Why it matters
Commercial managers see where outturn is moving
Dashboard views are grounded in governed package, cost, value and forecast records rather than disconnected reporting packs.
Package Breakdown · Feeder sheet
DetailsFeederRisk & OpportunitiesTasks
PackageP020 Groundworks
Forecast value£2.76m
Forecast cost£2.58m
Open risk£85k
Cat 1Net Order£2.58m
Cat 2Post Order Transfer£80k
Cat 3Domestic Variations£126k
Cat 4Client Variations£94k
Cat 5Contra Charges-£28k
Cat 6Provisions£52k
Cat 7Claims£65k
Feeder tab input · category detail
Input lineFinal valueCostStatus
Drainage variation£54k£41kLikely
Reduced excavation-£18k-£18kAgreed
Delay entitlement£65k£20kClaim
Key functionality
Package subledger with feeder-sheet input
Each package shows its Details, Feeder, Risk & Opportunities and Tasks tabs, with Cat 1–7 inputs for net order, transfers, variations, contra charges, provisions and claims.
Live roll-up
Package detail feeds value, cost and forecast
QS-level package inputs roll into the project dashboard, package margin chart, Commercial summary and controlled forecast position.
Claims & Entitlements · Upstream / downstream
Upstream claims
Submitted£1.42m
Assessed£890k
Included in forecast£640k
StatusNegotiation
Downstream entitlements
Notified exposure£520k
Assessed liability£310k
Contra charges£95k
StatusUnder review
ClaimDirectionSubmittedAssessedForecast
Delay entitlementUpstream£520k£310k£210k
Design changeUpstream£420k£260k£180k
Subcontract contraDownstream£95k£95k£95k
Claims visibility
Track upstream claims and downstream entitlements together
Commercial teams can see submitted, assessed and forecast-included values by direction, so claims are visible in the same workbook as cost, value and package forecasts.
Forecast impact
Claims feed risk, opportunity and scenario views
Entitlement positions can be reviewed alongside package performance and modelled before they become part of the official forecast.
Scenario Modelling · Outlook
Best case
9.4%Margin if opportunities landMost likely
7.8%Current commercial forecastWorst case
4.9%Risk-adjusted downsideClient variation recoveryBest £420k · Likely £260k · Worst £80k
Facade productivity riskBest -£40k · Likely -£180k · Worst -£410k
MEP procurement opportunityBest £310k · Likely £125k · Worst £0
Delay entitlementBest £520k · Likely £210k · Worst -£95k
Scenario modelling
Manage best, most likely and worst case outcomes
Commercial teams can model upside, downside and likely values before deciding what should become the official governed forecast.
Decision support
Separate scenario thinking from approved numbers
Scenario rows help teams understand exposure without prematurely overwriting structured project records.
Tasks · Commercial kanban board
To do
Review facade downside
Upload MEP feeder lines
In progress
Confirm upstream claim evidence
Validate groundworks accrual
Done
Lock April forecast
Resolve frame variation
Task workflow
Kanban-style actions tied to workbook context
Actions created during commercial review can be assigned, given due dates and moved from To do to In progress to Done.
Accountability
Team and personal task views
Users can track their own commercial follow-ups while managers keep visibility of open actions across the team.
Trends & Movements · Granular drilldown
Portfolio
+£3.2m
Project
+£640k
Work package
-£180k
Claim
+£210k
Assumption
-£75k
Movement analysis
Trends at every level of granularity
Movement can be reviewed from portfolio headline down to project, package, claim and assumption level after period locks create a baseline.
Month-end comparison
Explain what changed and why
Commercial teams can move beyond static snapshots and see the drivers behind changes in value, cost, margin, risk and opportunity.
Permissions · Package-level access
Granular control
Control access down to package level
When required, QS users can be restricted to managing only their own work packages while managers retain project-wide review and approval rights.
Governed collaboration
Flexible enough for real project teams
Package-level assignment supports accountability without opening the whole commercial workbook to every contributor.
Governance · Writeback and period lock
Formula bar =PackageBreakdown.ForecastFinalCost - Costs.TotalActualCost
1Model the value in a working tab or feeder sheet.
2Commercial manager approves, rejects or reopens the period.
3Audit log and period snapshot preserve the month-end position.
Governed by design
Flexible analysis, controlled official data
Working tabs and package feeder sheets stay flexible, while official structured values are governed with full audit history.
Month-end control
Snapshots and period locks preserve history
The platform supports review, freeze, reopen and lock-period workflows so teams can compare future movement against a recorded baseline.
How the governed platform works
Frontend UI
Excel-like workbook experience in the browser
▼
Grid engine
Cells, formulas, tabs, cross-tab named references
▼
Backend / API
Business rules, governance validation, permissions
▼
Database
Structured commercial data, typed fields, schema
▼
Audit + storage
Version snapshots, export controls, change history
Users see a workbook. The business gets a controlled data product.
Structured tabs
Commercial data with fixed fields, validation and enforced schema
Working tabs
Flexible user analysis, safely separated from governed data
=Revenue.ForecastMargin — named references, not fragile cell links
Built for every commercial stakeholder
Commercial teams
Keep the spreadsheet-like working style, reduce rework, and improve confidence in submitted numbers.
Commercial directors
See regional and portfolio movement earlier, with exception-driven review instead of manual chasing.
Finance leaders
Improve traceability, consolidation and month-end governance without relying on uncontrolled files.
IT / data teams
Replace fragile macro files with a controlled application and integration-ready data model.
Enterprise visibility: a commercial command centre
Outtrn can feed dashboards that commercial directors, finance teams and executives can trust because the underlying workbook data is typed, validated and auditable.
READY TO SEE IT?
Bring outturn predictability to every project.
See the governed workbook in action. Early access is now open — request your place on the platform.