1. Real post frame framing logic
Post frame has its own rules. Column spacing is driven by capacity. Trusses land on columns. Girts and purlins run on real spacing. Headers displace girts around openings. Software that treats a post frame building as a generic box with steel on it approximates all of that, and the takeoff shows it.
The test is quick: ask the vendor to turn the cladding off. If there are columns, trusses, purlins and girts underneath, placed where a crew would put them, the software is modeling the building. If there's nothing under the steel, it's a picture. We wrote about why that matters in why most building configurators don't show you the framing.
Then push on the hard parts:
- Lean-tos. Members on both sides of the intersection change. A lean-to drawn as a separate box gets this wrong.
- Big openings. A 16-foot overhead door changes the framing around it, not just the wall panel.
- Mixed heights. A taller sidewall on one end should change the columns, girts and steel on that end.
2. Material lists and cut lists from the design
The material list is where post frame building software earns its price. "42 purlins" isn't orderable. Forty-two purlins at a real length is. You want a list with lengths and counts, counted from the model, covering the whole building: columns, trusses, purlins, girts, headers, bracing, roof and wall steel, trim, doors and windows.
Cut lists matter just as much on the production side. If the crew is cutting from stock, they need member lengths, not a square-foot estimate. And because the list comes from the model, it should change the moment the model does. Add a bay, and every affected line should update without anyone redoing the math. More in getting a real material list out of a 3D building model.
3. A post frame estimator that prices the model
A post frame estimator should price the building you designed, not a table that sits beside it. That means the estimate is built from the same material list the crew will order from, priced with your costs.
Watch for tools where the 3D model and the price live in separate places. They agree on day one and drift apart with every change. If the customer moves a door and the price doesn't move with it, someone is going to catch that mistake on the invoice.
The estimate should also turn into something you can send. In Redline, that is a branded quote with live 3D rendering, line-item pricing and the full quote details, with your logo and company info on it.
4. Your own pricing, under your control
Your supplier costs and your margins should be yours to load and change, without a support ticket. Lumber and steel prices move. If updating them means emailing a vendor and waiting, your quotes are already out of date.
In Redline, pricing comes from your supplier price sheet once it's loaded, plus your own numbers. You control pricing and can update it any time.
5. Mobile, on the job site
A lot of post frame jobs are sold standing where the building will go. If the software only runs on an office computer, you are taking notes in the field and doing the quote at night.
Check that you can design and price the building on your phone, with nothing to install. Redline's dealer configurator runs in a phone's browser, so you can set the size with the customer next to you, add the doors where they point and show them the building before you leave. See design and price a building from your phone.
6. An embed on your website
Your website should collect the building, not just a name and a phone number. A customer-facing designer on your own site lets visitors design their post frame building in 3D and send it to you with the full design attached. You start the first call already knowing the job.
Check that it runs in your branding, that it works on phones, tablets and desktop, and that you can pick which framing systems your customers see. Redline's Website 3D Designer does all three. More in contact form vs 3D configurator.
7. Plans from the same model
Plans, elevations and framing layouts should come from the model that produced the takeoff. If they're drawn separately, every revision is two jobs, and the drawings and the order eventually disagree. Redline produces dimensioned elevations, sheet layouts and permit-ready plans from the same design.
What good post frame design software looks like on a real job
Put it together and good post frame design software works like this. You meet the customer on site. You design the building on your phone: width, length, eave height, pitch, bays, lean-tos and openings. The material list builds itself from the model and gets priced with your numbers. You send a branded quote with a 3D rendering before you're back in the truck. When the customer asks for a change, you change the model and send a new version that afternoon. When they sign, the same design produces the plans and the order.
Each step is one you would otherwise do by hand. That is the bar to hold any vendor to.
8. The rest of your work
Most post frame builders don't only sell post frame. If you also quote red iron, stick frame, hybrid post frame with steel trusses or tube frame carports, running separate tools means separate pricing to maintain and no way to compare systems on the same building.
Redline covers all five in one platform: post frame, red iron (bolt-up and weld-up), stick frame, hybrid post frame and tube frame / carports. See post frame in Redline and five framing systems for the price of one plan.
Run the test during the trial
Don't design a rectangle. Design the building you quoted last week, with the lean-to and the big overhead door and the taller sidewall on one end. Then compare the material list to the one you did by hand. If the numbers line up, the software works. If they don't, you learned it in a free trial instead of on a job.
While you're at it, time yourself. Note how long the design took, how long it took to get a priced quote out, and how long a change took when you moved a door or added a bay. Then do the same job on your phone, standing outside, the way you would on a real site visit. A tool that is fast at a desk and painful on a phone will end up back at the desk, and the quote will go out tomorrow instead of today. Finally, put the website designer in front of someone who has never seen it and watch whether they can design a building and send it without help. Our longer guide to pole barn design software has more questions to ask during that trial.
Redline is $250/mo flat with 2 seats included and $0 setup. Add the Website 3D Designer on your site for $290/mo total. The 10-day free trial needs no credit card.