What is Scope Gap?
A scope gap occurs when a specific work item falls between trade boundaries and is not included in any subcontractor's bid. For example, the drywall sub assumes the painter will do surface prep, while the painter assumes the drywall sub will deliver a paint-ready surface. Neither bids the work, creating an unbudgeted cost.
Purpose
Identifying scope gaps before contract execution is one of the most important tasks in preconstruction. Every scope gap represents an unbudgeted cost that the general contractor or project owner will have to absorb, directly impacting project profitability.
How Does it Work?
Scope gaps are discovered through careful bid leveling and scope review. The estimator compares each subcontractor's inclusions and exclusions against the complete specification, looking for work items that are excluded from all bids. Common scope gap areas include demolition, temporary protection, cleaning, material handling, and interface conditions between trades.
Benefits
Proactively identifying scope gaps allows general contractors to either negotiate the work into an existing subcontract, solicit a separate bid, or budget a self-perform allowance. This prevents the surprise costs and finger-pointing that scope gaps cause during construction.
Conclusion
Scope gaps are a leading cause of construction budget overruns. Systematic scope review during preconstruction is the best defense against these hidden costs.