With the frame in place, it’s time to focus on the roof and enclosure to complete the firewood shed. In this part, we’ll install the rafters, attach the purlins, and secure the metal roofing sheets to provide reliable protection from the elements. We’ll also add the slats to the back, sides, and front, ensuring proper airflow while keeping the firewood neatly stacked and sheltered. These steps will give the shed both strength and a modern, functional design. Let’s get to work!
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.
Projects made from these plans
3 Cord Modern Firewood Shed – PART 2
Building-a-modern-firewood-shed
Cut and Shopping Lists
- G – 7 pieces of 2×4 lumber – 80 3/4″ RAFTERS
- H – 5 pieces of 1×4 lumber – 12 ft PURLINS
- I – 2 pieces of 1×2 lumber – 59 3/4″ SLATS
- I – 72 pieces of 1×2 lumber – 79″ SLATS
- I – 24 pieces of 1×2 lumber – 12 ft SLATS
- I – 5 pieces of 1×2 lumber – 148 1/2″ SLATS
- I – 62 pieces of 1×2 lumber – 5 3/4″ SLATS
- UNLOCK SHOPPING LIST
Tools
Hammer, Tape measure, Framing square, Level
Miter saw, Drill machinery, Screwdriver, Sander
Safety Gloves, Safety Glasses
Time
One week
Related
- Firewood Shed Plans
- PART 1: Modern 6×12 Firewood Shed Plans
- PART 2: Door Plans for 6x12Wood Shed
Step 3: Building the lean to roof
Rafters-for-lean-to-wood-shelter
Cut the rafters for your firewood shed from 2×4 lumber, ensuring they fit the lean-to design. Use a miter saw to make precise 9.5-degree cuts at both ends of each rafter for a snug fit against the support beams. Taking the time to get accurate cuts here will make assembly easier and ensure a solid, well-structured roof.
Rafter-detail—top
Mark the cut lines on each rafter to create the top notch, ensuring a precise fit against the support beam. Use a circular saw to make the cuts, taking care to stay within the marked lines for accuracy. If needed, finish the cuts with a handsaw or chisel for a clean and exact fit. This notch will help the rafters sit securely in place, adding strength and stability to the roof structure.
Rafter-detail—bottom
Mark the cut lines on the rafters for the bottom notch, ensuring they align properly with the top of the side walls. Use a circular saw to make the cuts, following the lines carefully for accuracy. If needed, clean up the cut with a handsaw or chisel for a precise fit. This notch will allow the rafters to sit securely on the frame, improving the overall stability of the roof structure.
Fitting-the-rafters
Install the rafters on top of the shed, spacing them 24 inches on center for proper support. Position each rafter securely on the support beams, making sure they sit flush in the notches. Drill pilot holes to prevent splitting, then drive 4 1/2-inch screws through the rafters into the beams for a strong connection. Double-check alignment as you go to ensure a sturdy and even roof structure.
Fitting-the-roof-purlins
Since this shed uses metal roofing, install 1×4 purlins across the rafters to provide proper support for the roofing sheets. Space the purlins 24 inches on center, ensuring even coverage across the structure. Secure each purlin to the rafters with 2 1/2-inch screws, making sure they are properly aligned and flush. This step is crucial for a strong and stable roof that can withstand the elements.
Step 4: Fitting the slats
Back-wall-slats
Attach the 1×2 slats to the back of the firewood shed, making sure they are evenly spaced for proper airflow. Use a 1-inch spacer between each slat to maintain consistent gaps. Secure the slats to the uprights with 1 5/8-inch screws, driving one screw into each joint. Take your time to align everything properly for a clean and uniform look.
Side-wall-slats
Secure the slats to the sides of the firewood shed, maintaining a 1-inch gap between each for proper airflow. Drill pilot holes to prevent splitting, then fasten the slats to the uprights using 1 5/8-inch screws. Take your time to ensure even spacing and alignment, giving the shed a clean and functional finish.
Front-wall-slats
Finally, install the slats on the front of the shed, following the same technique used for the sides and back. Maintain a 1-inch gap between each slat for airflow and drill pilot holes to prevent splitting. Secure them to the uprights with 1 5/8-inch screws, making sure everything is evenly spaced and aligned. This final step will complete the modern design while adding durability and functionality to your firewood shed.
Roof-sheets
To install the metal roofing sheets, start at one end of the shed and work your way across, overlapping the panels to ensure proper water drainage. Secure the sheets to the purlins with roofing screws, placing them along the ridges to prevent leaks. Install a drip edge along the sides of the roof to direct water away and protect the structure from moisture damage.
If the side wall panels extend higher than the lean-to roof, add flashing where they meet the roofline to prevent water from seeping behind the panels. This extra step will improve the shed’s durability and keep your firewood dry year-round.
Step 5: Finishing touches
Modern 3 cord firewood shed
For a clean and polished look, sand any rough edges on the wood to prevent splinters and ensure a smooth finish. Apply an exterior wood stain or weather-resistant paint to protect the shed from the elements and extend its lifespan. If you used pressure-treated lumber, allow it to dry for a few weeks before staining or painting for the best results. Sealing the wood will not only enhance its durability but also complement your backyard aesthetic.
To complete the build, check all the screws and fasteners to ensure everything is secure. Consider adding hooks or small shelves inside for storing kindling or fire-starting supplies. You can also place gravel or pavers under the shed to improve drainage and prevent moisture buildup around the firewood. With these final touches, your firewood shed is now ready to keep your wood dry, neatly stacked, and easily accessible all year long.
If you enjoyed this build, be sure to check out PART 1, where I walk you through the step-by-step process of constructing the floor and roof. It’s the foundation that set the stage for this entire project, and you won’t want to miss those key details!
This woodworking project was about 6×12 modern wood shed roof plans. 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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