Sketch-to-CAD · Lumber yards & truss plants

Turn Truss Sketches into CAD Layouts

LaunchAI converts contractor sketches and builder plans into CAD drawings. Create truss layouts, placement plans and quote drawings from the supplied dimensions. The drawing is built from the supplied measurements, notes and specifications. Unclear details are flagged for your team to review.

See your sketches converted to CAD See the approval screen

For truss designers, techs and estimators at component plants, and the inside sales and takeoff desks at lumber yards that quote them

6:15 AM. The contractors were at the counter before the coffee was.

The pile is already there. A sketch on the back of a pick ticket: a rectangle, "28x60 shop 6/12 2' OH", and "10" heel?" squeezed in by the corner. A builder's 14-sheet plan set where the roof plan says "trusses by others" and the elevations disagree with it. A photo of a chalk line on a slab. Outside sales texting that the Kessler barn needs a number by noon, and a voicemail that says "vault the great room, he'll know what I mean."

So you open SAPPHIRE or IntelliBuild and build it. Wall lines and bearings, span to the outside of the plate, pitch, heel, overhang and tail cut. Spacing, gable ends with the drop for outlookers, girders over the door headers, the ground snow for that county. Then the layout goes in the design queue, and somebody at the yard starts the wall and sheathing takeoff in BisTrack or Paradigm off the same sketch, typing the same numbers a second time.

None of it is hard. All of it matters. A truss built four inches short doesn't stretch, a wrong heel moves the fascia line and the insulation, and in April the yard that gets the number back by noon gets the whole package: trusses, lumber, sheathing and the next three houses.

What the job looks like today

  1. Read the sketch

    Work out what was measured, from where, and what "vault" means today.

  2. Build it in software

    Bearings, spans, pitches, heels, tails and loads, by hand.

  3. Chase the gaps

    Call the framer about the heel and the overhang. Wait.

  4. Send to design

    Layout goes in the designer's queue behind forty others.

  5. Type it again

    The yard does the stick takeoff off the same sketch.

Where it goes wrong

A truss is the one thing on the job nobody can trim to fit

The lumber package forgives a bad number with an extra unit. The trusses don't. These are the notes that turn into a field fix or a re-run.

  • Span to the outside of what?

    Truss span is outside of top plate to outside of top plate. The contractor measured the slab, the block, or the inside of the walls with drywall on. Each one is a different truss.

  • "Vault" is half a spec

    A vaulted great room means scissors. Scissors need a bottom chord pitch, and the drywaller, the HVAC guy and the light fixture all care what it is. The sketch says "vault."

  • Overhang, measured how?

    24" level off the wall and 24" along the rafter are different tails. Add a plumb or square cut and a fascia board and the eave line moves on every truss.

  • The heel the insulation needed

    R-49 blown in won't fit over the wall plate on a standard heel. If the contractor wanted an energy heel and didn't say so, you find out when the insulator calls him.

Why it's still manual

Software hasn't fixed this. Here's why.

Component plants run some of the best engineering software in construction. It all starts after somebody types the building in.

  • Your CAD and quoting software

    Waits for someone to type

    MiTek SAPPHIRE, Alpine IntelliBuild and Simpson's component software design and engineer trusses beautifully. They need bearings, spans, pitches and loads entered by a person who has read the sketch and the plan set.

  • Generic AI and OCR models

    Confidently wrong

    A chat model reads "28'4½" as 28.45, treats "6/12 3/12" as two unrelated fractions, and fills in a heel height that looks typical. Nothing tells you which values it read and which it made up, and in trusses a made-up value gets built.

  • Image-to-CAD converters

    Traces lines, not intent

    Image-to-CAD tools trace the rectangle on the pick ticket. You get a box in a DXF with no bearings, no pitch, no overhang and no idea which wall is the gable.

  • Measuring apps and configurators

    Only if everyone uses them

    Plan takeoff tools and contractor portals work when you get a clean PDF. The yard still gets the guy at the counter, the photo of the slab and the framer's voicemail, and that's a lot of the business.

Written on the paperGeneric OCR / AI modelLaunchAI agent
28'4½ 28.45' 28' 4-1/2" span (340-1/2") Feet, inches and fractions run together in handwriting.
6/12 · 3/12 sc 6/12, 3/12 Scissor: 6/12 top chord, 3/12 bottom chord Two pitches on one truss; which chord is which is the whole question.
2-ply GDR @ 16' 2-ply GDR 16 Two-ply girder at 16' 0" from the left end Abbreviations and the @ carry the structure; drop them and it's a different roof.

How the agent does it

From sketches to CAD drawings and layouts

LaunchAI converts the sketch and its measurements into CAD geometry, applies your drawing standards and prepares the related order information. Missing dimensions and unclear notes are flagged for your team to review.

MiTek SAPPHIREKessler shop 28x60 · roof layout Agent working · your login · this PC
GeneralDetailsPricingNotes
  • 28' 0" o/s plate ← Sketch, "28' o/s"
  • 60' 0" ← Sketch, long wall
  • 6/12 ← Sketch note
  • 10" energy heel ← Sketch, low confidence
  • 24" level · plumb cut ← Sketch + yard default
  • 24" o.c. · 29 commons + 2 gables ← 60' at 24" + 1
  • TCLL 30 · TCDL 10 · BCDL 10 psf ← County table
  • Drop top 3-1/2" for outlookers ← Your default for 24" gable OH
Saved as draft. Nothing is sent until you approve.Send to review

  1. Reads what came in

    Sketches, plan sets, photos and voicemails, with a confidence score on every value.

  2. Applies your rules

    Your county loads, default cuts and heels, gable types and shipping limits.

  3. Lays out the job

    Opens SAPPHIRE or IntelliBuild and builds the layout the way your best tech would.

  4. Asks only what it must

    No heel height? It drafts the text to the contractor instead of guessing.

  5. Your designer approves

    Confirm the flagged heel; the job goes to design and the quote goes out.

Caught at the desk

Problems caught before the shop floor

Today the order bounces when someone hits save. The agent runs the same checks first, fills what it can from a trusted source, and brings you only the one thing that needs a person.

Today

Convert to order · quote #10482Failed rules 4

Layout incomplete · cannot send to truss design

  • Heel height not confirmed
  • Ground snow load not set for the county
  • Overhang tail cut not specified
  • Gable end type missing

Verify the following

  • Span measured to outside of plate?

With the agent

Agent checks · before review5/6 passed

  • Span is outside of plate

    28' 0" matches the slab on the sketch with 2x6 walls flush to the edge.

    Pass

  • Heel height unclear

    Written "10" heel?". Laid out at 10"; confirm before design and the fascia order.

    Needs you

  • Truss count

    60' at 24" o.c.: 29 commons and 2 gable ends, 31 total.

    Pass

  • Loads set for the site

    TCLL 30 psf from your county table; TCDL 10 and BCDL 10 defaults.

    Pass

  • Ships in one piece

    7' 0" rise plus heel is under your piggyback height limit.

    Pass

  • Lumber package started

    Walls, sheathing and fascia takeoff opened in BisTrack for the yard estimator.

    Pass

Human review

You approve the drawing, not the typing

The paperwork on one side, the agent's drawing on the other, and every value it read in between, with the one it's unsure of called out.

LaunchAI Portal · Reviews

Approval you asked for

Approve the Kessler shop truss layout Pending

The agent laid out 31 trusses from the contractor's pick-ticket sketch and started the lumber takeoff. The heel height note is unclear.

Medium risk 1 of 18 in your queue Sketch to CAD · step 02.3 · Review truss layout

Agent suggests: Approve after confirming the 10" energy heel. Span, pitch, overhang, spacing and loads match the sketch and your county table.

Source sketchkessler_shop_sketch.jpg
28' o/s10" heel? 6/12 30# snow 31 @ 24" 2' OH
Shop truss · profileOpen in MiTek SAPPHIRE
28' 0" SPANHEEL 10" 6/12 PITCH TCLL 30 PSF 31 @ 24" OC OH 24" Shop truss · profile · Rev A ● Preview synced just now

Dimensions read from sketch

  • Span“28' o/s” 28' 0"
  • Pitch“6/12” 6/12
  • Overhang“2' OH” 24" level
  • Spacing“31 @ 24"” 24" o.c. · 31
  • Loads“30# snow” TCLL 30 psf
  • HeelLooks like “10" heel?” 10" energy heel
Every value links back to where it was read on the sketch. Request changes Approve CAD

Inputs and outputs

Sketches and measure sheets in. CAD drawings out.

  • Contractor sketches on pick tickets, graph paper and legal pads
  • Builder and architect plan sets: roof plans, elevations, sections
  • Photos of slabs, chalk lines and existing roofs
  • Phone and voicemail changes from framers and outside sales
  • Site addresses for snow and wind loads
  • Truss layout entered in MiTek SAPPHIRE, Alpine IntelliBuild or your component software
  • Profiles with span, pitch, heel, overhang and loads set, ready for design
  • Placement plan and quote drawing the contractor can sign
  • Lumber and sheathing takeoff started in BisTrack, Agility or Paradigm
  • A short question to the contractor for anything the sketch left out

Your numbers

What it gives back to your team

Change the numbers to match your shop.

Example values. Put in your own.

29hours back per week
1,463hours back per year (50 weeks)
0.7full-time people's worth of typing

today with the agent: review only

Your software

Create CAD drawings in your team's tools

LaunchAI converts sketches into drawings through your CAD and design workflow. Bring your software version, drawing standards and a sample sketch so we can confirm the conversion steps and outputs for your setup.

  • MiTek SAPPHIRE
  • Alpine IntelliBuild
  • Simpson Strong-Tie Component Solutions
  • Epicor BisTrack
  • DMSi Agility
  • Paradigm Estimate
  • Bluebeam
  • Outlook and text inbox

FAQ

Lumber yards & truss plants: questions we hear

Does it replace our truss designers?

No. It does the layout entry your techs do before design. Your designers still run the design, check the girders and send the sealed drawings through engineering exactly as they do now.

Can it work in MiTek SAPPHIRE or Alpine IntelliBuild?

Yes. LaunchAI agents use your software through the screen with your team's logins, the same way your techs do. There's no integration, plug-in or import file to set up.

What if the sketch doesn't give a heel, an overhang or the loads?

The agent never guesses a structural value. It flags the gap, drafts a short question to the contractor or outside sales, and can lay out on your yard defaults with the assumption written on the quote, if you allow that.

Who signs off before anything is designed or built?

Your people. The agent stops at the layout and the quote. Every flagged value has to be confirmed by your designer or estimator, and nothing goes to design, engineering or the saw without that approval.

Can it do the lumber package too?

Yes. The same sketch becomes a wall, sheathing and fascia takeoff in BisTrack, Agility or Paradigm Estimate, so the yard isn't typing the building a second time.

We mostly get builder plan sets, not napkins. Does it help?

Yes. It reads the roof plan, elevations and sections, and flags where they disagree with each other before your tech builds the layout on the wrong one.

Other industries

The same agent, other trades

Pools & outdoor living

Metal & fabrication

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Building products & structures

Signs, covers & soft goods

How the Sketch-to-CAD agent works

Send us last week's counter sketches.

See your truss sketches converted into CAD layouts.

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