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Free Online shed designer

Design your shed in minutes. Every board counted.

Drag the walls to size, place the doors and windows and pick the roof. The Shed Planner frames every wall, checks the spans and counts every board and sheet, free on screen. When you are ready to build, the builder's plan for your exact design is $29, and 20 popular sizes come as free plans.

Design my shedBrowse free plans
Try it yourself
Demo of the shed designer: a cursor drags the shed from 8' x 8' to 12' wide, raises the walls to 9' 1-1/8", makes it 10' deep, adds a window and snaps it to the middle of the wall, paints it barn red and turns the view, while the board and sheet count updates.
  • Sizes from 4x4 to 16x24 ft
  • Gable or lean-to roof
  • Spans checked for your snow load
  • Free summary PDF, no sign-up

Why the numbers hold

How it works

Three steps from idea to lumber yard

  1. 8x10 gable, 80 sq ft

    Step 1: Set the size

    Pick a common size or type your own width and depth. Choose gable or lean-to, the pitch and the wall height, and watch the 3D view follow.

  2. Front wall, 1 opening framed

    Step 2: Place the openings

    Add a single or double door and up to four windows. Headers, king studs, jacks and cripples are framed for you, on layout from the corner.

  3. 94 boards, 6.7% offcut

    Step 3: Get the plan

    The free summary has the dimensions, the span checks and the materials list. The builder's plan, $29 once, adds every wall dimensioned, every cut on a board and the step-by-step.

What you get

Free on screen. The builder's plan when you are ready to cut.

The wall views, the span checks and the materials list are free for any size, with nothing to sign up for. The dimensioned drawings, the cut list and the rafter template come in the builder's plan, $29 one time.

Free, on screen

The designer $0

  • 3D view, every wall framed stud by stud
  • 3 span checks at the snow load you choose
  • Materials list packed onto 8, 10, 12 and 16 ft boards
  • Summary PDF with the dimensions and the list
Design my shed, free

One-time payment

The builder's plan $29

  • SheetWall framing: front

    8x10 gableEach stud dimensioned from the corner01

  • SheetCutting plan, board by board

    8x10 gableEvery cut assigned to a board02

  • SheetRafter cuts and angles

    8x10 gablePlumb cut, birdsmouth and tail03

  • SheetFoundation and floor framing

    8' wide10' deepFRONT

    8x10 gableJoists at 16" on skids04

  • A framing drawing of every wall, each stud dimensioned
  • The cut list, with every cut assigned to a board
  • Rafter angles and a full-size rafter template
  • A step-by-step build with figures, 24 pages, Letter or A4

Our guarantee. If our plan has an error, we fix it or refund you.

Design my shed, then get the plan
What is in itFreePlan, $29
3D view and every wall framed on screenIncludedIncluded
Span checks at your snow loadIncludedIncluded
Materials and shopping list, packed onto 8 to 16 ft boardsIncludedIncluded
Summary PDF with dimensions and the listIncludedIncluded
Every wall drawn with each stud dimensionedNot includedIncluded
Cut list with every cut assigned to a boardNot includedIncluded
Rafter angles and a full-size rafter templateNot includedIncluded
Step-by-step build sequence with figuresNot includedIncluded
Plan error guarantee: we fix it or refund youNot includedIncluded

A shopping list that fits the rack

Framing is packed onto 8, 10, 12 and 16 ft boards, and trim comes in 8, 12 and 16 ft, with short pieces sharing a board when they fit whole. For the 8x10 that is 94 boards with 6.7% offcut, including 49 8 ft 2x4s, and one 4x8 siding panel covers each 4 ft of wall with no horizontal seam.

Spans checked, not guessed

Rafters, floor joists and headers are checked in bending and deflection for Spruce-Pine-Fir No. 2 at the snow load you choose, with the deflection limits and nail counts from the 2021 IRC tables. A 2x6 rafter at 16" can span about 11' 11-1/8" at 30 psf; this roof needs 3' 11-1/4".

Free shed plans

Start from a popular size

All 20 plans

Guides

Build it right the first time

All 31 guides, 153 sources

Ready when you are

Design your shed free. Buy the plan only when you are ready to cut.

Design my shed, freeBuilder's plan, $29

A planning aid, not a permit: the planner cannot see your site, your frost depth or your local amendments. Check sizes, setbacks and permits with your building department before you buy lumber. The permit guide lists the questions to ask.