CSI Division 07 · Architectural
Siding Estimating
Cladding area by type, with the trim, corners and starter that carry more labor per foot than the field siding, plus weather barrier and flashing at every joint.
- SF
- wall area by cladding type
- LF
- trim, corners, soffit, fascia
- EA
- penetrations, vents, blocks
Scope
What we measure.
Measured from
Exterior elevations, wall sections and the cladding details
- 01Fiber Cement Lap
- 02Weather Barrier
- 03Trim & Corner Boards
- 04Sealant & Flashing
- 05Soffit & Fascia
Where bids go wrong
What other siding estimates miss.
Openings deducted or not — small windows are usually not worth deducting once trim is counted.
Trim, corners, starter and J-channel, which carry more labor per foot than the field siding.
Weather barrier, flashing and sealant at every penetration and horizontal joint.
Access: staging and lift time on anything above one storey.
Sample takeoff
How siding line items come back.
Every quantity is traceable to the sheet it came from, in the units the trade buys in.
- Quantities traced to the sheet they came from
- Waste and productivity carried as visible lines
- Formulas intact — edit any rate
| CSI | Line item | Quantity |
|---|---|---|
| 07 46 33 | Fiber cement lap | 3,180 SF |
| 07 27 00 | Weather barrier | 3,480 SF |
| 07 46 00 | Trim & corner boards | 640 LF |
| 07 92 00 | Sealant & flashing | 480 LF |
| 07 46 00 | Soffit & fascia | 380 LF |
FAQ
Siding Estimating, answered.
Talk to an estimator
Not a salesperson. Same-day answers on working days.
+1 518 974 7222[email protected]Do you deduct openings?
Yes. Openings are deducted and their trim, flashing and returns are measured separately.
Do you include the weather barrier?
Yes. Weather-resistive barrier, furring and trim are measured alongside the cladding.
Can you use our cost book and labor rates?
Yes, and we prefer it. Your historical costs reflect your crews and your suppliers better than any published average. Send the template and we work inside it.
How does pricing work?
Pricing is per project and quoted before any work starts — no retainer, no minimum volume and no subscription.
Do you sign NDAs?
Yes. Drawings, specifications and pricing are treated as confidential by default, and we sign your NDA on request before any documents change hands.
Start a quote
Need siding numbers for your next bid?
Pick your project type and send the drawings. We confirm the fee and delivery date within the hour on working days.