12×16 Shed with Dormer Plans

This step by step diy project is about simple 12×16 shed with dormer plans. I have many requests for a shed with dormer and a loft. I designed this 12×16 garden shed on a sturdy 2×4 framing and I have you covered with step by step instructions and a full cut / shopping list. In addition, all my plans are PDF download and Print friendly. Make sure you read the local codes so you can comply with the legal requirements. Take a look over the rest of my woodworking plans, if you want to get more building inspiration.

When buying the lumber, you should select the planks with great care, making sure they are straight and without any visible flaws (cracks, knots, twists, decay). Investing in cedar or other weather resistant lumber is a good idea, as it will pay off on the long run. Use a spirit level to plumb and align the components, before inserting the galvanized screws, otherwise the project won’t have a symmetrical look. If you have all the materials and tools required for the project, you could get the job done in about a day. See all my Premium Plans HERE.

Projects made from these plans

 

12×16 Shed with Dormer Plans

Building-a-shed-with-dormer

Cut & Shopping Lists

• A – 8 pieces of 4×4 lumber – 8′ long SKIDS
• B – 2 pieces of 2×6 lumber – 16′ long, 13 pieces – 141″ long FLOOR FRAME
• C – 5 piece of 3/4″ plywood – 48″x96″ long, 2 pieces – 48″x48″ long FLOOR
• D – 1 piece of 2×4 lumber – 24″ long, 1 piece – 136″ long, 1 piece – 185″ long, 1 piece – 16′ long, 15 pieces – 91 1/2″ long, 4 pieces – 29″ long, 2 pieces – 36″ long, 4 pieces – 15 1/2″ long, 4 pieces – 3 1/2″ long, 2 pieces of 2×6 lumber – 35″ long, 4 pieces – 39″ long SIDE WALL
• E – 2 pieces of 2×4 lumber – 16′ long, 1 piece – 185″ long, 15 pieces – 91 1/2″ long SIDE WALL
• F – 1 piece of 2×4 lumber – 137″ long, 1 piece – 144″ long, 2 pieces – 20 1/2″ long, 3 pieces – 91 1/2″ long, 2 pieces – 82 1/2″ long, 10 pieces – 3 1/2″ long, 2 pieces of 2×6 lumber – 99″ long FRONT WALL
• G – 2 pieces of 2×4 lumber – 137″ long, 1 piece – 144″ long, 10 pieces – 91 1/2″ long BACK WALL
• H – 13 pieces of 5/8″ T1-11 siding sheets – 48″x96″ long, 1 piece – 48″x12″ long SIDING 

• 8 pieces of 4×4 lumber – 8′
• 2 pieces of 2×6 lumber – 16′
• 2 pieces of 2×6 lumber – 10′
• 13 pieces of 2×6 lumber – 12′
• 5 pieces of 2×4 lumber – 16′
• 5 pieces of 2×4 lumber – 12′
• 55 pieces of 2×4 lumber – 8′
• 3 pieces of 2×6 lumber – 8′
• 14 pieces of T1-11 siding – 4’x8′
• 6 pieces of 3/4″ plywood – 4’x8′
• 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
• 4d nails, 6d nails,
• rafter ties
• wood filler , wood glue, stain/paint

Tools

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

Time

One week

Related

• PART 1: 12×16 Shed with Dormer Plans
• PART 2: 12×16 Shed Roof with Dormer Plans

It’s that simple to build a shed with dormer – Video!

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12×16 Shed with Dormer Plans

Building-a-floor-frame-for-a-12×16-shed

The first step of the project is to build the floor frame. Cut the joists from 2×6 lumber, as shown in the diagram. Drill pilot holes and insert 3 1/2″ screws. Place the joists every 16″ on center and make sure the corners are square. Align the edges flush.

Fitting the skids under the floor frame

Fit 6×6 skids to the floor frame. Use rafter ties to secure the skids to the floor frame. The skids lifts the floor frame from the ground to protect it from moisture. Alternatively, you can use footings and posts for the shed. Make sure the skids are pressure treated because they will be exposed to moisture.

In addition, it would be a good idea to level the ground under the location for the shed. If you don’t use concrete blocks, you can at least compact a 2″ layer of gravel under the shed. The gravel will drain the water quickly.

Fitting the floor sheets – shed dormer

Use 3/4″ plywood sheets for the floor. Cut all the sheets at the right dimensions and then lay them on the floor frame. Align the edges flush and leave no gaps between the sheets. Drill pilot holes and insert 1 5/8″ screws every 8″ along the framing.

Building the wall frames

Front-wall-for-12×16-shed

Use 2×4 lumber for the plates and studs. Cut the components at the right dimensions, as shown in the plans. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs.

Place the studs every 16″ on center. Use triple studs at both ends of the wall frame. Frame the door opening and adjust the size to suit your needs. Use 2×6 lumber for the header.

Back-wall-frame-for-12×16-dormer-shed

Next, frame the back wall for the 12×16 shed using 2×4 lumber. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs every 16″ on center.

Side wall frame

Frame the plain side wall using the info in the diagram.

Side-wall-frame-with-window—12×16-dormer-shed

Frame the opposite side wall and include a window. You can adjust the size of the window to suit your needs. Use 2×6 lumber for the triple plates. You can frame windows to both sides of the shed or to no side of the shed. You can also change the size of the window to suit your needs,

Assembling-the-shed-frame-for-12×16-dormer-shed

Fit the wall frames to the floor of the shed. Align the edges flush and plumb the walls vertically. Drill pilot holes through the bottom plates and insert 3 1/2″ screws into the floor frame. In addition, lock the adjacent walls together tightly with 3 1/2″ screws. Make sure the corners are square.

Fitting the siding sheets

Side wall with window siding sheets

Fit the T1-11 siding sheets to the side of the shed. Use a saw to cut out the openings for the side door and window.

Front wall siding sheets – 12×16 shed

Use 5/8″ T1-11 siding sheets for the exterior of the shed. Alternatively, you can go with OSB, house wrap and then siding boards. Use 6d nails to secure the sheets to the wall framing and leave no gaps between the sheets. Use a saw to make the cuts around the double door opening.

Side wall siding sheets

Fit the T1-11 siding sheets to the plain side wall of the shed.

Back wall siding sheets – 12×16 garden shed with dormer

Fit the T1-11 siding sheets to the back of the shed. Use 6d nails to lock the sheets into place, every 8″ along the framing.

12×16 Storage Shed with Dormer Plans – Side view

Take a look over PART 2 of the 12×16 shed project, so you learn how to build the rood gable roof and the dormer, as well as the doors.

12×16-storage-shed-with-dorner-plans

12×16 Storage Shed with Dormer Plans – dimensions

Building a 12×16 shed with dormers will likely cost you between $3,000 and $5,500, depending on the materials and the level of detail you choose. Adding dormers increases both the complexity and the cost, but they bring in extra natural light and add a charming architectural detail that enhances the overall look of your shed. This investment results in a spacious, stylish shed that’s not only functional but also an eye-catching addition to your property.

12×16 shed with dormer plans

You can expect to spend about 5 to 7 weekends constructing your 12×16 shed with dormers. The dormers add some extra time and craftsmanship to the build, but the end result is well worth the effort. With careful planning and execution, you’ll create a beautifully designed shed that stands out with its unique features.

How to build a 12×16 shed with dormer

As you finish your 12×16 shed with dormers, take pride in the blend of functionality and style you’ve achieved. The dormers not only bring in more light, making the interior brighter and more inviting, but they also add a touch of elegance that sets your shed apart. This is more than just a storage space, it’s a thoughtfully crafted structure that adds character and value to your property, providing a beautiful and practical solution for your needs.

Al in all, if you are interested in a 12×16 garden shed with a dormer and a loft for extra storage, you can should check out the rest of the plans. This shed features generous overhangs on all sides and the dormer windows will make a difference, when it comes to light. Please take a look over the rest of my woodworking plans, because I have over 1500 free designs.

This woodworking project was about 12×16 shed with dormer plans free. If you want to see more outdoor plans, check out the rest of our step by step projects and follow the instructions to obtain a professional result.

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