The Resolve Lab. Work it out yourself.
Eight working calculators in two workshops: one for risk and contingency, one for delay and claims. Each recalculates and redraws as you type.
Risk calculators
Contingency by milestone
Generalized minimum contingency by project stage, applied to your base estimate.
Open →SCC workbook
Standard Cost Categories with Beta Range Factors for design, market and construction, and the resulting range.
Open →Patent and latent
Separate patent (known) and latent (unknown) contingency, simulated.
Open →Latin Hypercube
Stratified sampling of a cost model, with distribution and convergence graphs.
Open →Claims calculators
Time-extension cost
What a schedule extension adds: field overhead, escalation and markup.
Open →Delay classifier
Excusable, compensable, non-excusable and concurrent days, with time and money.
Open →Delay methods
Seven named delay methods on one editable schedule, side by side.
Open →Home-office overhead
Eichleay formula for unabsorbed home-office overhead, with standby test.
Open →All tools are planning and teaching aids using illustrative defaults. They are not a risk analysis, a forensic delay analysis or legal advice.
Need the real number, defended?
These are starting points. A simulation-based risk analysis or a forensic delay analysis gives you a figure you can defend to a board, an auditor or a dispute board.