CAD Blocks

Turn a product photo into a CAD block

Paste a link to the product page, or drop in a photo or a screenshot from the maker's website. CAD Blocks draws the plan, front and side elevations at the exact width, depth and height you give it, and hands you a DXF for AutoCAD, Revit, SketchUp, Vectorworks or Chief Architect.

Or or drop them here See pricing

Built with a working interior designer. No card needed, and a block takes about a minute and a half to draw.

Photo of a comb-back Windsor armchair
Item
Windsor comb-back armchair
Size
W 597 × D 673 × H 1121 mm
Sized by
Measured by the museum
Blocks
ARMCHAIR_WINDSOR_COMBwith _PLAN, _FRONT and _SIDE
Download this DXF DXF for SketchUp Open it in your CAD program and see for yourself.

How it works

  1. Add the product

    Paste a link to the product page and it brings in the photos, name and maker, and the size when the shop lists it. Or drop in a photo, a screenshot or a PDF spec sheet: up to four images of the same item.

  2. Give the size

    Type the width, depth and height from the spec sheet. Every view is fitted to those three sizes, so the plan and both elevations agree. If you only know one, the rest follows the photo. Or let it estimate the size and scale it later.

  3. Download the DXF

    The plan, front and side arrive as three named blocks. Insert them into your drawing, or resize them here for free if the size changes.

What's in the file

One DXF holds three blocks, drawn true size in millimetres or inches. It opens in AutoCAD, Revit, SketchUp Pro, Vectorworks and Chief Architect, so it fits whichever program your studio uses.

Blocks in a file for a sofa called SOFA_3SEAT
BlockViewInsertion point
SOFA_3SEAT_PLANPlanBack-left corner
SOFA_3SEAT_FRONTFront elevationBottom-left, at floor level
SOFA_3SEAT_SIDESide elevationBottom-left, at floor level
Layers
The outline sits on layer 0 with ByBlock colour, so each block takes the layer you insert it on, or on I-FURN if you prefer. Detail lines go on I-FURN-DETL and hidden edges on I-FURN-HIDN, so you can switch them off.
Hidden edges
Legs under a tabletop and other edges you can't see are dashed, set by their layer, so they come into SketchUp dashed too.
Attributes
Description, maker, model, width, depth and height travel with the block, ready for your FF&E schedule, plus where the size came from.
Resizing
Change the width, depth or height after drawing and download again. It's instant and doesn't use a block.

Pricing

Prices in US dollars ($), for where you are.

Free

to try it

Blocks3 a month

People1

ExtrasNo card needed

Start free

Pay as you go

a block

BlocksBuy 5 to 100 at a time

People1

ExtrasBlocks never expire

Buy blocks

Pro Best for one designer

a month

Blocks40 a month

People1

ExtrasWorks out at a block

Choose Pro

Studio

a month

Blocks150 a month, shared

PeopleUp to 5

ExtrasShared team library and batch upload of many photos at once

Choose Studio

Practice

For more than 5 people, or more than 150 blocks a month. We set the people, blocks and price to fit your practice, and you can pay by invoice.

Email us

Every plan gives you a DXF with plan, front and side, free resizing, and a second pass that checks the drawing against your photo. A drawing that fails doesn't use a block.

Monthly blocks reset each billing month and don't roll over. Cancel any time from your account; your plan runs to the end of the month you've paid for.

Questions

How accurate are the drawings?

The overall size is exact when you enter it, because every view is fitted to your width, depth and height. The proportions inside, such as arm height or leg spacing, follow the photo. Views the photo doesn't show are inferred, so check the block against the maker's spec sheet before issuing drawings.

What counts as a block?

Each item you draw uses one block, and you get its plan, front and side in one file. Resizing a finished block is free. Drawing the same item again, for example with a different photo or new notes, uses another block.

Can I get DWG files?

Not yet. DXF opens in every major CAD program, including AutoCAD, Revit, SketchUp Pro, Vectorworks and Chief Architect, and you can save it as DWG from there. Direct DWG export is planned.

How do I bring a block into SketchUp?

Download the DXF for SketchUp. It's the same block, with a surface in every closed area so you can paint it. You need SketchUp Pro on the desktop: the free web version can't import DXF.

  1. Choose File, then Import, and set the file type to AutoCAD Files (DWG, DXF).
  2. Pick the file and click Options.
  3. Set the units to the block's unit: millimetres or inches.
  4. Tick Merge coplanar faces and Orient faces consistently, then import. SketchUp remembers these settings.
  5. Double-click a view to open it. One click of the Paint Bucket fills a whole area.

If one click fills only a triangle, Merge coplanar faces was off. Import the file again with it ticked. The SketchUp guide has more help.

Which photos work best?

A straight-on product photo on a plain background gives the most accurate drawing, and a screenshot from the maker's website works well. Add a second photo from the side, or a PDF spec sheet, and the side elevation improves. Busy room shots work if you say which item to draw in the notes.

What happens to my photos?

They're used only to draw your blocks. Each photo is sent to Anthropic's Claude API, which does the drawing and doesn't use it to train models. Your photos and blocks stay in your library until you delete them. The privacy notice has the details.

Can I cancel?

Yes, any time, from your account page. Your plan keeps working until the end of the month you've paid for, then you move to the free plan. Pay-as-you-go blocks you've bought stay in your account.

Can my team share blocks?

On Studio, up to five people share 150 blocks a month and one library, so everyone can find and reuse what's been drawn. Studio also lets you upload a batch of photos at once, which helps when you're working through a whole FF&E schedule. For a bigger team, ask us about a Practice plan at hello@cadblocks.app.

Can I get a refund?

Yes, for blocks you haven't used. Ask within 14 days and we'll refund unused pay-as-you-go blocks, or a first month on a plan where no blocks were drawn. Email hello@cadblocks.app. The terms explain how this works with your right to cancel.

Draw your first three blocks free

Sign in with your email address, add a photo and download the DXF. No card needed.

Try 3 free blocks

Looking for a ready-made block? Browse the free furniture block library.