Gutter / downspout LF
Linear footage.
Wind & hail · Calculator
Free · no login
Product overview
Total the gutter run on a house and get a downspout count in one step. Enter the eave length on each side — front, back, left, right — and the calculator sums them to total gutter linear feet and suggests downspouts at roughly one per 35 LF. Reach for it when wind has torn gutter off the eaves and you're sizing the replacement, so the gutter and downspout line items carry defensible quantities pulled straight from the elevations you measured.
Gutter is estimated in linear feet along the eaves that carry it. Enter each side's eave run — leave off gable ends and any eave without gutter — and the calculator adds the four sides to a total LF. It then suggests downspouts at about one per 35 linear feet, rounded up, which is a common rule of thumb for residential drainage. A house with 40 + 40 + 30 + 30 = 140 LF of gutter works out to four downspouts. Actual downspout count depends on the roof area draining to each run and local code, so treat the suggestion as a starting point and verify on site.
Product details
- Sold by
- Mensuria
- Product category
- Free field tool · Calculator
- Delivery method
- Web app · no login
- Cost
- Free
Highlights
- Deterministic — the same inputs give the same result, every time.
- Built for the trade, sized to feed Xactimate line-item quantities.
- Free — no login, no card.
- Works from a phone at the loss.
Vendor insights
Mensuria writes a neutral scope built to survive review — every line item sourced to a photo, anything unprovable held back and flagged for you. It never files the estimate; a licensed adjuster confirms every line and stays the adjuster of record. Mensuria is independent and not affiliated with Verisk or Xactimate; “Xactimate-ready” means the worksheet is organized for Quick Entry.
Pricing
This tool is free — no login, no card. The full scope-drafting product is priced below; your first claim is free.
Details
Delivery method
Mensuria is a web app — nothing to install. You work a claim in the browser and export a room-grouped, Xactimate-ready worksheet (codes, quantities, descriptions) organized for Quick Entry. There is no native .ESX import; you key the reviewed line items into Xactimate and stay in control.
Terms and conditions
Use of Mensuria is subject to our Terms of Service. Your first claim is free with no card; paid plans are billed monthly and cancel anytime.
More from this vendor
Field photos and a few measurements in; a defensible, Xactimate-ready scope out — every line item sourced to the photo that supports it.
Run an estimate you wrote — or a contractor's — past Mensuria for gaps, missed scope, and the companion line items a loss like this usually carries, before you settle. Free for a limited time, no login.
43 calculators and field references for the numbers you work out on site — drying days, roof squares, depreciation, O&P, flood cut, and more. No login, no claim required.
Support
Support
Reach the team at support@mensuria.com . You will hear back from people who have written a scope, not a ticket queue.
Onboarding
Your first claim walks you through capture, draft, review, and export step by step, so you are productive on claim one — no training required.
Refund policy
Monthly plans cancel anytime; the CAT Season Pass is a one-time add-on with no commitment.
Common questions
A common rule of thumb is one downspout per 30 to 40 linear feet of gutter; this calculator uses roughly one per 35 LF and rounds up. The real driver is how much roof area drains to each gutter run — steep or large slopes shed more water and may need downspouts closer together — plus local code. Use the suggested count as a starting point and confirm placement against the roof's drainage on site.
Gutter runs along the eaves — the horizontal edges at the bottom of a slope — not the rakes or gable ends, which pitch up and don't collect runoff. So a simple gable house typically has gutter on two sides, while a hip roof carries it on all four. Enter only the eave runs that actually hold gutter; leaving out non-gutter edges keeps the linear-foot quantity accurate for the estimate.
Measure the length of each eave that carries gutter, side by side, and total them — gutter is priced by the linear foot, so the total LF drives the line item. Include the eave runs only, not the rakes. This calculator sums the front, back, left, and right runs you enter. Pair the measurement with a photo of the damaged runs so the quantity is tied to the field evidence when you scope the replacement.
- Wind & hail
Elevation area.
- Wind & hail
Squares from dimensions.
- Wind & hail
Rise over run to multiplier.
- General
SF / SY / LF / CF.