BUILD PLANS

Build plans where every number comes off a 3D model.

Each plan starts as a 3D model of the finished project. The drawings, the cut list, the cutting layout for every board, the hardware and the shopping list are all measured off that model by script, so they agree with each other and nothing is guessed.

Plans

A cedar porch swing with a slatted back and flat arms, hanging from four chains

Cedar porch swing, 5 ft

$29

An open-back swing cut entirely from cedar 2x4s, with every fastener hidden except the four eye bolts.

  • 15-page plan, 11×17 drawings, spreadsheets and the 3D model
  • 8 boards, about 21½ hours, intermediate skill

See the plan and sample pages

A 16 by 24 cabin with a steep dark metal roof and vertical siding, raised on posts over concrete piers

Off-grid cabin, 16 x 24 with loft

$149

A cabin shell with a sleeping loft, framed to the IRC for 70 psf ground snow and drawn for your engineer to review.

  • 44-page plan, 10 drawings at 11×17, spreadsheets and the 3D model
  • 233 boards, about 179 crew hours for the shell, advanced skill
  • Shopping list counted off the model, not yet priced

See the plan and sample pages

A shed with a dark metal roof, double doors with white trim and painted panel siding, standing on skids over a gravel pad

Mountain shed, 10 x 12 or 12 x 16

$49

A storage shed on skids, both sizes in one plan, framed to the IRC for 70 psf ground snow.

  • 44-page plan, 12 drawings at 11×17, spreadsheets and the 3D models
  • 102 or 123 boards, about 60 or 67 crew hours, intermediate skill
  • Shopping list counted off the model, partly priced

See the plan and sample pages

A small sauna building with a steep dark metal roof, painted panel siding, a white-trimmed entry door and a side window, on a gravel pad

Backyard sauna, 8 x 12, electric

$79

A hot room and a changing room on skids, drawn around the Harvia KIP80B electric heater and framed for 70 psf ground snow.

  • 31-page plan, 7 drawings at 11×17, spreadsheets and the 3D model
  • 149 boards, about 88 crew hours, intermediate skill
  • Needs a licensed electrician; shopping list partly priced

See the plan and sample pages

What every plan includes

Drawings

Dimensioned elevations and an exploded view with every part numbered, at Letter size and at 11×17 for a print shop.

A cut list and layouts

Every piece lettered, and every board you buy drawn to scale with its cuts, kerf and offcuts.

A shopping list

Lumber and hardware rounded up to what stores sell. Priced lines name the product, its link and the date it was priced.

Hardware and joinery

Every fastener with its spec, rating where it matters and where it goes, and how each joint is made.

A timed build sequence

Steps in order, each with hours worked out from what the model counts: cuts, bores and glue-ups.

The 3D model

A .glb file you can open and turn around in a 3D viewer, so you can see how it goes together.

How buying works

You pay through Stripe's secure checkout. Within 1 business day we email your copy, built with your name and order number on every page. Each plan is licensed for one build for personal use. You get a full refund any time before we send it, and after that any error is fixed and resent at no charge. Our terms and refund policy have the details.

These aren't stamped engineering drawings, and each plan says what it doesn't cover.

Want something we don't have a plan for?

Our 3D modeling service models any project to your measurements, with the same parts lists and drawings.

See the 3D modeling service

Questions? Email info@belmaix.com.