Cement-board underlayment
$8.48 / SF
FL-145 · MasterFormat 09 05 00 · SF
What’s in this rate
This SF unit installs rigid 1/4-inch cementitious backer-board panels over a sound structural substrate as tile backing; the crew beds, fastens, staggers, and tapes panel joints. It is a panel underlayment. Moisture, crack-isolation, acoustic, cork, plywood, and self-leveling membrane systems stay on their own units.
Includes
- 1/4-inch cementitious backer-board panel
- thinset bedding, alkali-resistant tape, and backer-board screws
- bed, fasten, stagger, and tape rigid panel joints
Excludes
- fluid or sheet moisture membrane
- crack-isolation membrane
- acoustic or sound-control membrane
- cork or plywood underlayment
- self-leveling underlayment
- structural subfloor repair
- after-hours work
Build-up
- Labor 0.09 hr × $55.00 wage and burden
- $4.95
- Material and small tools
- $2.06
- Direct rate (labor, material, and tools)
- $7.01 / SF
- Overhead 10% of direct
- $0.70
- Fee 10% of (direct and overhead)
- $0.77
- Loaded rate
- $8.48 / SF
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