Preformed Membrane Waterproofing
Median winning unit price
Moderate 7 winning bids≈$9.88/ SFLow confidence
- Winning bids
- 7
- Source documents
- 7
Winning bids only, as awarded. Nominal dollars. How we compute this
Where the number comes from
One of the 7 winning bids behind that median, with the agency’s own document one click away.
- Agency
- Caltrans (District 4) · California
- Letting
- Jun 17, 2025
- Quantity
- 2580 SQFT
- Contractor
- Not stated on the document
- Winning price
- $9.88 / SF
Median by quarter
EstimatorHow this item has priced over time, quarter by quarter, from the same rows as the headline figure.
See what Estimator addsWhat’s behind $9.88
A free account opens the full build-up of this number, down to the agency documents it came from.
Middle-half range
The p25–p75 band of winning bids — where most jobs actually land.
Price distribution
All 7 bids charted, so you can see clusters and outliers.
7 observations
Agency, county, letting date, quantity and the price as printed.
7 public bid tabulations
Every row links to the agency’s own document. Check any price yourself.
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Related items
Other structures items priced per SF, ranked by how much evidence each has.
- Membrane, Preformed Waterproofing$4.00227 bids
- Membrane, Preformed Waterproofing, Modified$17.253 bids
- Membrane, Preformed Waterproofing, Spec$18.043 bids
- Waterproofing Membrane, Type 2$3.8085 bids
- Asphalt Membrane Waterproofing$14.0040 bids
- Waterproofing Membrane System$8.3236 bids
- Waterproofing Membrane Type 3$4.257 bids
- Joint Waterproofing$6.00856 bids
7 observations
6 agencies in 1 state · lettings May 13, 2020 – Jun 17, 2025
| Letting | Agency · County | Quantity | Unit price | Source document |
|---|---|---|---|---|
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