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In this official guide "How To Build A Shed in A Week or Less" we're going to cover the main & most important building steps of one of our PREMIUM SHED PLANS. We'll use our 10X16 Gable Storage Shed Plan as an example (keep that in mind). Although the below isn't a complete guide - it covers the basics, the missing elements & much more are available as part of our PREMIUM PLANS. This FREE shed building guide will help YOU familiarize with the shed building process in general. It will also provide important information about shed building steps, preparation, objectives & materials needed. So, let's dive right into it...

Step 1: Shed requirements

Firstly, you should check with your state or local authority as to whether erecting a shed is permitted on the land you have chosen. Some states might require you to apply for permission, if your shed will exceed a certain size. Once you have established this, you can decide on a shed size and design. There several different types of shed to choose from, such as lean-to sheds that are 6X10 (small) and hip sheds that are 16X24 (large).

Gable sheds are ideal for yard storage. Lean-to sheds are great for storage too, with the benefit of sitting flush against a wall. Hip roof sheds are the most stylish type of shed. They stand out with their ‘hip roof’, which has sharp edges running to the eaves. Whichever sheds you’re interested in, our plans will help you build them in a week or less!

measure your space

Step 2: Let’s Go Shopping For Materials!

All of our plans also come with a comprehensive step by step shed building guide. This is in addition to the full materials & shopping list. The shed summary is a specification sheet, which details the shed’s dimensions, roof shape, sidewall height, number of doors, door opening dimensions, flooring options and recommended roofing material. In other words, it includes everything you need to build your dream shed from scratch.As an example, here is a break-down of materials needed for the 10X16 Gable Storage Shed:

shed parts

Foundation

Pressure-Treated 2x6 (Band) x2Pressure-Treated 2x6 (Joist) x11Pressure-Treated 4x4 (Skid) x3¾” Tongue and Groove Plywood (Floor Decking) x5

Hardware

Roofing Felt2” Galvanized Finishing Nails11/4” Galvanized Finishing Nails3 ½” Galvanized Nails6 inch bolts+ few more specific items, that are available in PREMIUM PLANS.

Left and right wall

2x4 Plate x62x4 Wall Stud x252z4 Cripple Stud x102x4 Header x44x Trimmer Studs8x Headers4x Half inch filler blocks5/8” T1-11 Exterior Siding x8

Front/Back Wall

2x4 Wall Stud x142x4 Plate x62x4 Cripple Stud x82x4 Trimmer Stud x22x  Headers1x  Half inch filler block

Door

7x 8 feet trims (1x4)1x 4 feet trims (1x4)1x 3 feet trim (1x4)6x  door hinges1x Door Handle and One Door Lock1 lbs 1.25" galvanized nails

Roof

2x4 Rafters x202x6 Overhang x67/16 OSB Roof Sheathing x65/8” T1-11 Exterior Siding x3

Trim

1x6 Lumbar x81/2” Plywood Soffit x4

Step 3: Building the foundation

Building any shed starts with the foundation. The foundation is the base of your shed, so it must be strong and sturdy. It will be made from pressure-treated timber, with ¾” tongue and groove plywood being used for the floor decking.

1. Collect all your foundation materials together, including all timber and hardware.

2. Build your foundation at the spot where your shed will be erected. This will save you from moving it later.

3. Clear the area where the foundation will be built of any vegetation. Ensure that the chosen spot is flat, so that the shed has even ground to stand on.

4. Start by building the foundation frame (exterior frame). This will serve as an outline.

5. Cut your timber to make bands and joists to the specifications outlined in your shed plan. Nail them into place so that they fit plumb.

6. Place your skids below the frame – these will support the flooring from weight.

7. With the foundation frame built, it is time to lay down the flooring. Take and cut your tongue and groove plywood, and nail it onto the frame using galvanized nails.

Step 4: Building the front and back wall

With the foundation built, you will build the front and back wall. On the 10X16 Gable Shed, the front wall houses a garage door.

1. Start by building the front wall. The front wall has a cut-out for the garage door. Build the front wall’s frame first.

2. With the frame built, work you’re your inwards with the studs. There should be a 9” gap between the outer frame and two inward studs.

3. Leave a cut-out for the garage door. You can either make a door yourself on a hinge, or you can install a pre-made roller garage door.

4. With the front wall frame built, nail your T1-11 siding to it.

5. Start building the back wall. The back wall is simpler to construct, since it does not have a cut-out for a window or a door. Finish it off with T1-11 siding.

You can use any pre-made roll-up garage door so long as it fits the opening. Motorised garage doors are too heavy for the structure, however, so avoid these. If you want to make your own garage door, it’s easiest to create a hinged door. These are essentially large double doors that open outwards, rather than inwards.

backwall

Step 5: Building and erecting the side walls

Building the side walls is relatively simple, although one wall will house a window. You can choose which wall houses the window to suit its location.

1. Start by gathering your lumber and building materials.

2. Build the wall by starting with the frame first. With the frame built, you can work your way inwards with the cripple and wall studs.

3. Cut your lumber to the specifications outlined in your shed plan. Take care when measuring the lumber, to ensure a good cut-out for the window.

4. With the wall frames built, nail the T1-11 siding to them using finishing nails. With the siding affixed, you can now move onto erecting the walls.

5. Erect the walls. Affix them to the foundation using temporary supports, and remove the supports after you have fixed the walls to the foundation.

6. We recommend erecting the walls with the help of a friend. The walls will be relatively heavy and cumbersome to handle by yourself.

side walls

Step 6: Building the roof

Construction of the roof is the most time-consuming part of a shed build, because you will need to make several rafters to the same specification. Hip roofs take the longest time to build, while basic and gable shed roofs take a little less time to build.

1. Start by building the rafters. The rafters on the 10X16 Gable Shed measure 5’ 8.5”. 20 rafters will be needed in total.

2. With the rafters made, start installing the gussets on both sides. Each rafter will have gussets on one side. With the gussets installed, nail your rafters down onto the top plate of the walls one-by-one, until the roof ‘skeleton’ is complete.

3. With the rafters made, start installing the gussets on both sides. Each rafter will have gussets on one side. With the gussets installed, nail your rafters down onto the top plate of the walls one-by-one, until the roof ‘skeleton’ is complete.

roof

Step 7: Adding shingles to the roof

With your OSB sheathing and felt installed, you can start layering the shingles. You will use asphalt shingles for the roof in this shed plan - although you can use any shingle you like, so if you prefer stone shingles, then you can use these.

Follow the manufacturer’s instructions and layer the shingles as outlined. It is important to follow the manufacturer’s recommended pattern for best performance. If your shingles did not come with instructions, you should be able to find some online.

The shingles you will use for this shed are made from asphalt. Asphalt is an exceptionally durable roofing material. These shingles have a shelf-life in excess of 15 years and can be easily replaced if damaged. They are also easy to install. If you would rather use something different that’s absolutely fine. The OSB sheathing is compatible with most shingles.

roof shingles

Step 8: Installing the trims

With the roof built and shingles laid, it’s time to install the trims. These add a professional touch to the roof and protect from water ingress. The trims are two separate pieces, installed for the front and back. The 1x6 corner trim for the front measure 7’ 11 ¾” with a 30-degree bevel cut. The 1x6 side corner trim measures 8’ 13/4” and has a 30-degree milter cut on the top. They should sit flush with the shed roof.

Step 9: Installing fascia boards and soffits

With your roof trims installed, next we’ll move onto installing the fascia boards and eve soffits. The fascia boards are for the left and right sides of the shed. Measure and cut two 1x6 trims into 16’ 8”. These are your fascia boards. Install the boards by nailing them onto the roof edges using 2” galvanized nails.

Once you have installed the fascia boards, you can move onto installing the soffits. The soffits will be installed on the shed eves. Measure and cut two 16’ 9” x 6 2/5” plywood soffits using lumber described in your materials list. These will be your soffits for the shed sides. Measure and cut four 5’ 7 4/5” plywood soffits for the shed front and rear. Nail them into the rafters using 2” galvanized nails.

Step 10: Finishing touches

With your soffits installed, your shed is complete. It will now be structurally sound, although rather naked in appearance. We recommend treating the exterior of your shed to a coating of paint or wood stain. This will help your shed blend into its environment (or stand out if you prefer). It will also help protect the timber from weathering. If you’d rather your shed age naturally, you might like to sand the timber to even its surface.

If you have plans to use the shed as a comfortable work area, you could even use plasterboard to make proper internal walls. Electrical cables can safely be fed through the shed so long as they are properly insulated and fire-rated. Most importantly of all, remember to enjoy your shed. It’s all yours, and it was proudly built with your own hands.

WOW! That's amazing! Ready to start?

GO PREMIUM! With our PREMIUM 3DSHEDPLANS™ that include everything you need to know about shed building from scratch. From materials to DIY step-by-step instructions - every single detail is included, all cuts & angles covered. Each plan is broken down into over 40+ easy to read and understand steps for each shed size. PRO tips for every step & section. Full shopping list is also included. And much more... For everybody who is a beginner or new to DIY - our PREMIUM PLANS are by far the best choice!

two shed buildings

Disclaimer:

Please understand, that building a solid and well-rounded garden or storage shed is a time-consuming project and shouldn't be rushed. So we did our best to include all the details we could into our PREMIUM PLANS. When it comes to variety of designs - be sure to check out our official store for more great designs! We have a wide variety of shed shapes & sizes available. Thank you for choosing our products, recommending them to your friends, leaving amazing reviews & helping us improve & perfect our plans!

Top 4 Things To Consider Before You Start!

Shed Location

We have shed plans available to suit any sized project. Sheds smaller than 12X16 are considered "compact" sheds, suitable for basic yard storage. 12X16 sheds and larger are suitable for motorised yard equipment such as mowers. The size of the shed you can fit in your yard will dictate its use. And 16X24 shed is considered very large. It’s big enough to store a classic car or motorbikes safely. It’s even big enough to live in!

Everybody wants a big, spacious garden shed. But not everybody can fit one in their yard. To make the best use of space, remember to take measurements of your yard. Double check them too - you might be able to fit in a bigger shed than you think.

Shed Size

Some people have limited space available for a shed, while others have the benefit of an enormous space to choose from. Whichever category you fall into, it is important to choose a location based on functionality rather than aesthetics.

For instance, your shed should be located on a flat area with solid ground. If the ground is not solid, then you may have to lay down a solid base for the foundation. It is also important to consider sunlight, and to place your shed where light can enter the shed.

Shed Windows and Doors

The windows and doors that you choose to install on your shed should be secure and of a high quality, so that they last the lifetime of your shed. The last thing you want is for a window or door to breakdown, since this will present some security and efficiency issues.

If you are going to use your shed as office, work or living space, then it may be beneficial to consider double-glazed windows. These are more efficient and more secure than single-glazed units, although they are more expensive. Depending on how you are going to use the shed, you might also like to consider windows that can be opened for airflow.

Take your Time

You should take your time and pace yourself when building a shed. This will ensure that you build your shed properly, without cutting any corners. The priority is always to build safely and without incident. If in doubt, enlist the help of a friend.

3DSHEDPLANS has 40 free shed plans, from a 4x8 lean-to to a 16x24 gable or hip roof. Each free preview PDF shows basic drawings, measurements and steps, but no materials list. Free materials lists are posted for the 8x10, 8x12, 10x12, 10x16, 12x12 and 12x16. The $19.99 full plan adds the shopping list, cut list and all measurements.

Free shed plans by size

Pick your size and roof below. The free preview opens as a PDF; the plan page shows what the full plan includes and its price. Floor area uses the nominal outside size.

Gable roof shed plans

Size Floor area Free preview Full plan with material list
6x4 24 sq ft Free 6x4 PDF 6x4 gable plan
8x6 48 sq ft Free 8x6 PDF 8x6 gable plan
8x8 64 sq ft Free 8x8 PDF 8x8 gable plan
8x10 80 sq ft Free 8x10 PDF 8x10 gable plan
8x12 96 sq ft Free 8x12 PDF 8x12 gable plan
8x14 112 sq ft Free 8x14 PDF 8x14 gable plan
8x20 160 sq ft Free 8x20 PDF 8x20 gable plan
10x8 80 sq ft Free 10x8 PDF 10x8 gable plan
10x10 100 sq ft Free 10x10 PDF 10x10 gable plan
10x12 120 sq ft Free 10x12 PDF 10x12 gable plan
10x14 140 sq ft Free 10x14 PDF 10x14 gable plan
10x16 160 sq ft Free 10x16 PDF 10x16 gable plan
10x20 200 sq ft Free 10x20 PDF 10x20 gable plan
10x24 240 sq ft Free 10x24 PDF 10x24 gable plan
12x10 120 sq ft Free 12x10 PDF 12x10 gable plan
12x12 144 sq ft Free 12x12 PDF 12x12 gable plan
12x16 single door 192 sq ft Free 12x16 PDF 12x16 gable plan
12x16 double door 192 sq ft Free 12x16 PDF 12x16 gable plan
12x20 240 sq ft Free 12x20 PDF 12x20 gable plan
14x24 336 sq ft Free 14x24 PDF 14x24 gable plan
16x20 320 sq ft Free 16x20 PDF 16x20 gable plan
16x24 384 sq ft Free 16x24 PDF 16x24 gable plan

Lean-to shed plans

Size Floor area Free preview Full plan with material list
4x8 32 sq ft Free 4x8 PDF 4x8 lean-to plan
4x10 40 sq ft Free 4x10 PDF 4x10 lean-to plan
4x12 48 sq ft Free 4x12 PDF 4x12 lean-to plan
6x6 36 sq ft Free 6x6 PDF 6x6 lean-to plan
6x10 60 sq ft Free 6x10 PDF 6x10 lean-to plan
8x16 128 sq ft Free 8x16 PDF 8x16 lean-to plan
12x14 168 sq ft Free 12x14 PDF 12x14 lean-to plan
12x18 216 sq ft Free 12x18 PDF 12x18 lean-to plan
12x24 288 sq ft Free 12x24 PDF 12x24 lean-to plan
14x14 196 sq ft Free 14x14 PDF 14x14 lean-to plan
14x16 224 sq ft Free 14x16 PDF 14x16 lean-to plan
14x20 280 sq ft Free 14x20 PDF 14x20 lean-to plan

Hip roof shed plans

Size Floor area Free preview Full plan with material list
8x16 128 sq ft Free 8x16 PDF 8x16 hip roof plan
10x12 120 sq ft Free 10x12 PDF 10x12 hip roof plan
10x16 160 sq ft Free 10x16 PDF 10x16 hip roof plan
12x20 240 sq ft Free 12x20 PDF 12x20 hip roof plan
16x20 320 sq ft Free 16x20 PDF 16x20 hip roof plan
16x24 384 sq ft Free 16x24 PDF 16x24 hip roof plan

Not sure which roof? Compare them in gable vs lean-to vs hip roof sheds, or browse the gable, lean-to and hip roof plan pages.

Free shed materials lists

The free previews do not include a materials list. For six popular sizes, we publish the lumber, sheet goods and hardware list for free:

New to material lists? This worked 10x12 example shows how a list is built and how much extra to buy.

Free preview vs full plan

Free preview PDF Full plan PDF ($19.99)
Drawings Basic schematics 3D views from every angle
Measurements Basic measurements Every part
Instructions Simplified steps Step by step, each stage drawn
Material list No Full shopping list
Cut list No Yes
Pro tips No Yes
Delivery Instant download Emailed right after purchase

Before you trust any free plan, run the 8 checks in our free shed plans PDF guide.

How to build a shed: where to start

  1. Check the rules first. Size and height limits vary by town, so check your local permit office. Our shed permit checklist lists what to ask.
  2. Price it. See how much it costs to build a shed by size, and whether it is cheaper to build or buy.
  3. Pick a foundation. Gravel, blocks, piers or a slab: compare them in shed foundation options.
  4. Choose a plan and build. Print the free preview first and stake the footprint in your yard; a 10x12 often feels bigger on paper than on the lawn. Then follow the full plan's steps. For a simple first build, read how to build a lean-to shed.

See every size on one page with door widths and heights in all shed plans.

Frequently asked questions

Are the free shed plans really free?

Yes. Every free preview PDF downloads with one click, with no sign-up and no payment. It shows the basic drawings, measurements and building order for that size.

Do the free shed plans include a materials list?

No. The free previews leave out the materials list and cut list. Free materials lists for the 8x10, 8x12, 10x12, 10x16, 12x12 and 12x16 sizes are on this site, and every $19.99 plan has a full shopping and cutting list.

What does the $19.99 plan add to the free preview?

Views from all angles, measurements for every part, a full layout for every step, step-by-step instructions, a full material and shopping list, a cut list and pro tips. The PDF is emailed after purchase.

Which free shed plan should I start with?

Start with the size that fits your yard and what you store. A 10x12 is a common all-purpose size; a lean-to has the simplest roof framing.

Do I need a permit to build a shed?

It depends on your town, the shed size and its height. Check your local permit office before you buy lumber.

Shed building guides