The right siding estimating software depends on one question: do you hang the siding yourself, or sub it out? If your crew installs it, STACK or PlanSwift gives you the assembly depth to price profiles, trim and accessories. If you're a GC who subs siding, Struvia fits better because the hard part is leveling sub bids and normalizing scope, not just counting squares.
This guide covers STACK, PlanSwift, SquareTakeoff, Procore, Buildertrend, Buildxact and Struvia, with real pricing and the honest limits of each.
Why Siding Takeoffs Break Generic Estimating Software
Picture a GC pricing a 32-unit townhome project. The siding takeoff comes entirely from elevations: four profiles (lap, board-and-batten, shake panel and a trim band), 400-plus window and door openings, and gable ends that change shape every third building. The floor plans barely help.
That's the core problem. Siding is elevation-driven and accessory-heavy, so tools built around floor-plan area and room counts force you to rebuild the job in a spreadsheet. If your software can't measure from an elevation sheet, you're doing the real takeoff by hand and using the software as a calculator.
Gross Wall Area Is the Easy Part
Net area after openings is where a siding takeoff starts, not where it ends. The misses come from the pieces that don't scale with wall area: outside and inside corners, J-channel, trim boards, flashing, WRB (weather-resistive barrier), fasteners and caulk.
Each of those has its own unit (linear feet, rolls, boxes, tubes). A tool that outputs only square feet of siding leaves the accessory math to you. On a multi-building job, that's where bids go wrong.
Where Siding Waste Factors Hide Estimating Errors
Waste varies by profile and by how cut-heavy the elevation is. Common rules of thumb run about 10% for standard lap, 12-15% for board-and-batten, and 15% or more for shake panels or elevations with lots of gables and angles. Confirm against the installation guides from manufacturers like James Hardie and CertainTeed.
Here's why it matters. On a $180,000 siding package, a 3% waste miss is $5,400, which is a real bite out of the margin on a package that size. Carry waste in your price book by profile, not as a single global percentage, so every estimate inherits the right number.
Quick Picks: Best Siding Estimating Software by Use Case
Here are our top siding estimating software picks for 2026:
- Self-performing siding crew: STACK. Its assemblies carry accessories, and cloud collaboration helps when several estimators share one plan set.
- GC who subs out siding: Struvia. It handles takeoff from uploaded plan PDFs plus sub bid packages and bid leveling in one workflow.
- Small remodeler: Buildxact or SquareTakeoff. Both are lighter-weight and tied more closely to proposals than to enterprise estimating.
- Team already on Procore: Procore Estimating. Keeping bids in the same system as project execution can outweigh takeoff depth.
- Budget-limited shop: Start with the no-cost options in our free construction estimating software roundup for single-elevation jobs. Move to a usage-based tool when you're bidding multi-building work.
How We Scored Siding Estimating Software
We scored each tool on seven criteria:
- Elevation takeoff workflow: how well it measures from elevation sheets.
- Accessory and waste handling: corners, trim, J-channel, WRB and profile-specific waste.
- Pricing transparency: whether you can find a real price before a sales call.
- Bid management fit: support for sending packages to subs and comparing bids.
- Integrations: how it connects with your other systems.
- Support: onboarding, training and responsiveness.
- Speed: time from plan upload to usable quantities.
The Siding-Specific Test: Can It Take Off From Elevations?
Run three tests in any demo, using your own plans rather than the vendor's sample project.
- Measure from an elevation sheet. Set scale and trace wall areas on a real elevation, including a gable.
- Deduct openings. Confirm windows and doors subtract from gross area without you re-entering each one.
- Attach accessories to a profile. Check that selecting lap siding automatically brings in corners, J-channel, WRB and fasteners.
If a tool fails the third test, you'll rebuild assemblies by hand on every job.
The GC Test: Does It Handle the Sub Side?
If you sub out siding, quantities are only half the job. The other half is getting three to five sub bids and finding out which ones include WRB, flashing and scaffolding.
A tool that stops at takeoff leaves you comparing PDFs side by side. Ask any vendor whether it builds bid packages, tracks sub responses and normalizes scope across bids.
Siding Estimating Software Compared: 6 Tools, Pros, Cons and Fit
STACK
STACK is cloud takeoff and estimating with trade-specific assemblies. Its siding page pitches fast digital measurement and reusable assemblies, and that's mostly fair. It's a capable takeoff tool, and building a siding assembly with accessories is straightforward once set up.
The limits are cost and ramp-up. A single Takeoff & Estimate seat runs about $2,599 to $2,999 per year depending on tier, with per-seat discounts for two or more estimators (our STACK construction software pricing breakdown covers the tiers). Assemblies take real setup time, and our STACK construction software review goes deeper on the learning curve.
Best fit is a self-performing siding contractor or multi-trade estimating team that will invest in assembly setup. It's a poor fit for a one-person shop bidding two jobs a month. Switch away if you're paying for takeoff depth but still comparing sub bids in spreadsheets.
PlanSwift
PlanSwift is desktop takeoff with a flexible assembly and template system. Few tools match it for custom siding assemblies, such as a lap-plus-batten combination with specific trim rules. Teams that build good templates can price fast. PlanSwift now publishes its pricing: Essential at $2,000 per year and Core at $3,000 per year, one seat each, with a 14-day free trial.
The catch is setup and maintenance. Templates live with whoever built them, and updates to material prices or waste factors fall on one person. PlanSwift is best for an experienced in-house estimator who wants control. Switching triggers (covered below) include template drift, single-estimator bottlenecks and no sub management.
SquareTakeoff
SquareTakeoff's siding page leans on ease of use, and that claim holds up better than most. It's browser-based, quick to learn, and a reasonable first takeoff tool for a small contractor measuring a few elevations.
Where it stops short is everything after quantities. Bid packages, sub outreach and bid leveling aren't what it's built for. Best fit is a small siding or exterior-finishes contractor. Poor fit is a GC running multi-building bids with five subs per scope. Pricing is published: about $249 per month, $599 per quarter or $1,699 per year, with every feature in every plan and a 14-day free trial.
Procore Estimating
Procore Estimating makes sense when your company already runs projects on Procore. Bids, budgets and project records stay in one system. Procore prices on annual construction volume, so cost scales with your business rather than with how many siding bids you run.
For a siding-focused team, that's often more platform than you need. Setup is heavier, and takeoff depth for accessory-level siding work depends on how you configure it. Our Procore estimating pricing guide covers what to expect. Best fit is a mid-size GC already committed to Procore. Poor fit is a siding sub or small remodeler buying it only for takeoff.
Buildertrend and Buildxact for Residential Siding Work
These two serve small residential builders and remodelers who need estimates tied to proposals, selections and client communication. If you're writing a siding-replacement proposal and want it to flow into a contract, they save real admin time.
Takeoff depth is the trade-off. Neither matches STACK or PlanSwift on elevation measurement or assembly flexibility. Buildxact publishes flat-rate plans at $199, $399 and $599 per month, while Buildertrend quotes by company volume (third-party estimates run roughly $339 to $499 per month for entry plans). Our Buildxact review covers its estimating strengths in detail. They're a poor fit for commercial or multi-building siding bids.
Struvia
Struvia reads uploaded plan PDFs and runs an AI-assisted takeoff. Every estimate line traces back to its basis, so you can check where a quantity came from. Pricing comes from your own company price book, which is where profile-specific waste factors and accessory costs belong.
For GCs who sub out siding, it also builds bid packages, handles sub outreach and levels bids. Leveling normalizes scope across bids and flags gaps and exclusions. It also drafts answers to sub questions, and prequalification, COI tracking and scorecards are being rolled out to more subs.
Struvia bills on usage, with no subscription or seat tiers. Reading a plan set is free, and new accounts start with 600 free credits.
Struvia isn't job costing, WIP or project management software, and it has no accounting integration. It doesn't convert to siding squares automatically, so set up price book units for anything priced per square. Preconstruction ends at buyout.
Siding Estimating Software Comparison Table
| Tool | Best For | Key Strength | Key Limitation | Est. Cost |
|---|---|---|---|---|
| STACK | Self-performing siding contractors | Trade assemblies, cloud collaboration | Per-seat annual cost, setup time | About $2,599-$2,999/yr per seat |
| PlanSwift | Experienced in-house estimators | Flexible custom assemblies | Template maintenance, no sub management | $2,000-$3,000/yr per seat |
| SquareTakeoff | Small exterior contractors | Easy to learn, browser-based | Stops at takeoff, no bid management | About $249/mo or $1,699/yr |
| Procore Estimating | Teams already on Procore | One system from bid to project | Heavy for siding-only teams | Quote-based, scales with construction volume |
| Buildertrend / Buildxact | Small residential builders, remodelers | Estimates tied to proposals | Shallower takeoff depth | Buildxact $199-$599/mo; Buildertrend quoted |
| Struvia | GCs who sub out siding | Takeoff from plan PDFs plus sub bid leveling | Not job costing or project management | Usage-based, 600 free credits to start |
PlanSwift Alternative for Siding Takeoffs: When to Switch
PlanSwift is a strong tool, and plenty of estimators should stay on it. A PlanSwift alternative becomes worth evaluating when specific problems pile up. The first is template maintenance: nobody has updated the siding assemblies since the last price increase. The second is a single-estimator bottleneck, where one person holds all the knowledge and every bid waits on them. The third is that you now sub out more siding and need to manage the sub side.
A replacement should read plan PDFs directly, show where each quantity came from, and price from a price book anyone on your team can update. If you're a GC, it should also handle bid packages and bid leveling.
Signs Your Current Takeoff Setup Is Costing You Bids
At peak bid season, most estimating teams are one sick day away from a missed bid. One person out, one 15-hour siding takeoff on the clock, and you're deciding whether to rush it or pass.
Watch for these signals:
- Takeoffs routinely take multiple days.
- Estimates can't be traced back to a measurement when an owner questions a number.
- Sub bids get compared in spreadsheets, with scope differences caught late or not at all.
Struvia aims for a takeoff in hours, not days, and bid packages out the same day, but run your own test before believing any speed claim, ours included.
Construction Takeoff Software Pricing for Siding: What You'll Actually Pay
Construction takeoff software pricing falls into two models. Subscription tools charge per seat or per company on an annual contract, with add-ons for training, onboarding or extra modules. Usage-based tools charge per takeoff or per action.
Subscriptions favor teams with steady volume and several estimators. Usage-based pricing favors teams with lumpy bid calendars. Ask every vendor about onboarding fees, training costs and what happens to pricing if you add a second estimator.
Here's a worked example. A GC runs 3 siding bids a month, or 36 a year. A $3,000-a-year seat spread across 36 bids is about $83 per bid before training or add-ons. On a usage-billed tool, cost per bid moves with sheet count, so price one typical bid with your own plan set before you compare.
Free Tools: Where They Work and Where They Fall Apart
Free construction estimating software handles a single-elevation job well: measure one wall set, subtract openings, multiply by a unit price. For a one-off repair or a small residential re-side, that's enough. Our free construction estimating software guide lists current options.
They fall apart on multi-building bids. Free tools typically lack saved assemblies, accessory logic, price-book pricing and any sub management. You end up rebuilding every job from scratch, and the labor cost of that quickly exceeds a paid tool's price.
Cost per Bid Beats Cost per Month
Don't compare tools by monthly cost. Compare by cost per bid plus estimator hours. If a siding takeoff takes 12 hours at a $50 loaded hourly rate, that's $600 in labor before any software cost.
Run the numbers with your own hours and your own bid count. Any tool that cuts takeoff hours will show up in that math, and you'll know it from your own results rather than a vendor's claims.
Pricing Siding Subs: Bid Leveling Is the Gap Most Software Pages Skip
Picture a GC pricing a three-story apartment building in Omaha who sees a 20% spread between the lowest and highest siding bids. Often half that spread is not price at all. One sub includes WRB and flashing, and another assumes you'll handle it.
That's the gap. Takeoff software tells you how much siding is on the building, and it doesn't tell you which sub priced the trim, the housewrap, the scaffolding and the haul-off. Bid leveling normalizes scope across bids and flags gaps and exclusions, so you compare like with like. Our flooring estimating software guide shows the same problem in a parallel trade.
Sub risk also lives outside the number. Check licenses and insurance before award. Struvia suggests subs by trade and service area and checks license status before you invite them.
The Siding Scope Checklist to Send Every Sub
Paste this into your bid package and require a yes, no or "by others" on every line:
- WRB / housewrap, including seam tape
- Flashing at windows, doors, penetrations and transitions
- Trim (corners, window and door surrounds, bands)
- Soffit and fascia
- Caulking and sealants
- Lifts, scaffolding and swing stage
- Waste haul-off and jobsite cleanup
- Manufacturer and workmanship warranty terms
Any line a sub leaves blank is a future change order.
How to Pick the Right Tool in One Afternoon
You don't need a 30-day evaluation. Pick one completed siding job where you know the as-built quantities. Run it through two tools using the same plan set.
Compare each tool's net wall area, accessory linear footage and waste-adjusted material counts against the as-built. Then score both tools against the seven criteria above and note how many hours each took. If you sub out siding, add a final step: build a bid package and see how each tool handles comparing the responses.
Frequently Asked Questions
What is the best software for siding takeoff?
It depends on who installs the siding. Self-performing contractors usually get the most from STACK or PlanSwift because of their assembly depth. GCs who sub siding out should weigh Struvia, since it combines takeoff with sub bid packages and leveling.
Can I estimate siding from PDF plans?
Yes. Most modern takeoff tools, including STACK, SquareTakeoff and Struvia, work from uploaded PDF plan sets. Make sure the tool can measure from elevation sheets and subtract openings.
How do you calculate siding squares and waste?
Net wall area is gross area minus openings. One square equals 100 square feet. Divide net area by 100, then add waste, commonly around 10% for lap and 15% or more for shake or cut-heavy elevations. Check the manufacturer's installation guide for your product.
Is there free siding estimating software?
Free options exist and work for single-elevation jobs. They usually lack saved assemblies, accessory logic and sub management, so they struggle on multi-building bids. See our free construction estimating software roundup for specifics.
Do I need siding-specific software or will general takeoff work?
General takeoff software works if it measures from elevations and lets you build assemblies with accessories and profile-specific waste. Without those features, you'll rebuild the accessory math by hand on every job.
How do I compare siding sub bids?
Send every sub the same scope checklist and require a response on each line. Then level the bids so inclusions and exclusions line up before you look at price. Spreadsheets work for one job, but they get unwieldy at volume.
Which Siding Estimating Software Fits Your Shop
The best siding tool is the one that matches how you actually work. Self-performing crews should look at STACK or PlanSwift, small remodelers at SquareTakeoff, Buildxact or Buildertrend, and Procore shops at Procore Estimating. GCs who sub out siding need takeoff plus bid leveling, which is where siding estimating software built for the sub side earns its keep.
Struvia reads your plan set at no charge, and new accounts start with 600 free credits. Upload a plan set free and run a siding takeoff from your elevations, or book a demo to walk through sub bid leveling on a live job.
*Reviewed by Baylor Jeppsen, Construction Estimating Expert and Founder of Struvia.*
