Built by a custom builder, opened up to other builders. Upload your plans, get a complete takeoff, cost estimate, and Scope of Work back the same day. The first one is free — see for yourself.
Most estimating software is built by software people for software people. Klorra was built by someone who needed it.
I'm a working custom home builder. Second-generation. Before Klorra, I was personally bidding 40+ jobs a year on top of running active job sites. Every bid took 25–35 hours of senior time, and most of them never became jobs.
So I built an AI workflow internally — a seven-phase pipeline that reads plans, flags conflicts, runs takeoffs, prices line items, and writes scopes. It works. Through 2025 we ran it on five real custom homes — real takeoffs, real estimates, real outcomes.
Klorra is that workflow, opened up to other custom builders. Not a generic AI startup. A working tool built by someone who needed it, with the cost-code logic and quality control gates of an actual builder baked in.
Every bid lives in a live in-app dashboard — your full portfolio at a glance, sortable by any column. Download the four documents whenever you need them.
| Project | AC SF | Gross SF | Total | $/SF AC | Delivered | Actions |
|---|---|---|---|---|---|---|
| Project #1247 | 4,238 | 5,820 | $1,284,930 | $303 | 3h 47m | Revise · Ask |
| Project #1246 | 3,500 | 4,720 | $1,022,500 | $292 | 2h 18m | Revise · Ask |
| Project #1245 | 5,800 | 7,640 | $1,927,200 | $332 | 4h 02m | Revise · Ask |
| Project #1244 | 2,950 | 3,890 | $782,800 | $265 | 1h 55m | Revise · Ask |
| Project #1243 | 6,400 | 8,210 | $2,304,000 | $360 | 3h 22m | Revise · Ask |
| …3 more bids… | ||||||
Every SF, LF, opening, and unit counted. Each line item anchored to a specific sheet in your plan set so you can audit any quantity back to its source.
135 trade-organized cost codes priced. Two budget scenarios (Current Budget + Budget B alternate). Override discipline logged on every adjusted unit price.
Client-ready scope organized by trade category, with the front elevation from your plans. Drop-in formatted for your contract package.
Cross-discipline clashes, code issues, and items requiring architect or engineer clarification — flagged before you bid, ready to send back for resolution.
A full takeoff and budget for a 4,000 SF custom home eats 20-40 hours of senior time. Most builders do it on nights and weekends.
Hire one full-time and you can't keep them busy. Hire one part-time and you lose continuity. Most $2-20M builders go without.
Your real cost-per-win is the cost of every bid you produced — including the ones you lost. Most builders never compute this number.
No software to install. No takeoff training. No clicks to count.
Drag in your architectural plan PDF. Answer 12 quick intake questions about lot, finish level, and region. Total time: under five minutes.
A seven-phase AI pipeline reads every sheet, flags conflicts, runs the takeoff, prices 135 cost codes, and writes the SOW. A project manager reviews every bid before delivery.
You receive an Excel takeoff and cost estimate plus a client-ready Scope of Work in your inbox, ready to send. One-click revisions if anything needs adjusting.
Move the sliders. The number gets uncomfortable fast.
Most estimates spit out a number. Klorra gives you a budget format that survives the project — built on seven principles we'd defend to any working builder. Three of the most important below.
Every Klorra Scope of Work is organized by CSI MasterFormat cost groups — the same framework architects use in their spec books and the same one subs expect. Section numbers match, so subs find their scope and bid against it directly. No translation layer between spec book and SOW, no reorganizing for permit submittal, no extra work explaining why your line items don't match the spec.
Every line item references a specific sheet on the plan set. No phantom quantities. If a number can't be traced back to a sheet, it doesn't go in the bid. This is the discipline that stops the failure mode that punishes builders six months into a job — when an unanchored estimate runs into a real plan set on a real job site.
Takeoff and pricing are separate stages, on purpose. Phase 2 produces verified quantities anchored to plan sheets. Phase 4 prices them. The quantities are reusable across pricing scenarios — change a labor rate or material cost and the whole bid recalculates without re-running takeoff. Most software conflates the two; we keep them clean.
Three tiers based on how often you bid. Annual or monthly billing — your call. First takeoff is free regardless of which you pick.
Or pay as you go: $299 per bid, no subscription. Your first bid is always free.
Klorra deliverables are budgeting and planning tools, not warranted bids. Every quantity and rate is the builder's responsibility to verify before commercial use. Terms §3.2.
The pricing engine is calibrated to Florida, Carolinas, and Texas regional cost data, refreshed quarterly. The takeoff (every SF, every LF, every opening counted) is the most rigorous part of the deliverable — that's what most working builders care about most. The cost layer sitting on top is a regional baseline, not a market-perfect bid. We do not warrant accuracy of any quantity or rate, in any specific market, on any specific project. You verify everything before commercial use.
Yes. Every step end-to-end: the AI reads the plans, runs the takeoff, prices 135 cost codes, writes the Scope of Work. It then runs three automated QC gates (sanity checks, override audits, total-bid range validation). At the very end a project manager gives the output a final sanity-pass — that's a safety net, not a bottleneck (it adds minutes, not hours). We're not hiding the human in the loop, but the AI is doing the actual work — the human is there because the AI is delivering bids people will sign contracts on, and that warrants a final sign-off. Same as any senior estimator would do for a junior on their team.
Built by a working custom home builder with years of real bidding experience on custom homes. The cost-code logic, override discipline, and QC checks were developed over years of bidding real jobs. The founder spot-checks every bid personally during the early months. This is not a software team that's never read a plan set.
Yes. Plans are stored encrypted, never shared with third parties, used only to produce your bid. We do not train any model on your plans. Aggregated, anonymized cost data may be used to improve regional benchmarks (you can opt out). Your dashboard is private to your organization.
Those are software you use to do your own takeoff. We do the takeoff for you. They charge you to learn a tool; we deliver a finished bid. If you've ever bought estimating software, opened it twice, and gone back to a paper takeoff — this is for you.
Annual contracts are the default and have a 30-day refund window. Monthly tiers cancel anytime. We'd rather lose a customer who isn't getting value than keep them on a contract they regret.
Upload one plan set. Get a complete takeoff, cost estimate, and Scope of Work back, free. No credit card, no obligation, no sales call.