This step by step diy project is about 8×10 small lean to greenhouse plans. I have designed this small lean to greenhouse so you can grow that organic vegetables or to keep all your flowers protected from the cold during winter. 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
Small Lean to Greenhouse Plans
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- A – 2 pieces of 4×4 lumber – 96″ long, 2 pieces – 120″ long SKIDS
- B – 3 pieces of 2×4 lumber – 120″ long, 8 pieces – 94 1/2″ long SIDE WALL
- C – 2 pieces of 2×4 lumber – 120″ long, 8 pieces – 72″ long, 3 pieces – 22 1/2″ long SIDE WALL
- D – 1 pieces of 2×4 lumber – 98″ long, 1 piece – 89 1/2″ long, 1 piece – 32″ long, 2 pieces – 54″ long, 4 pieces – 72″ long FRONT WALL
- E – 2 pieces of 2×4 lumber – 89″ long, 5 pieces – 72″ long, 1 piece – 5 1/2″ long, 1 piece – 11 3/4″ long, 1 piece – 18″ long BACK WALL
- F – 8 pieces of 2×4 lumber – 100″ long, 4 pieces – 19 3/4″ long, 6 pieces – 22 1/2″ long RAFTERS
- 2 pieces of 4×4 lumber – 8′
- 2 pieces of 4×4 lumber – 10′
- 14 pieces of 2×4 lumber – 10′
- 20 pieces of 2×4 lumber – 6′
- 14 pieces of 2×4 lumber – 8′
- 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
- 4d nails, 16d nails
- wood filler , wood glue, stain/paint
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Hammer, Tape measure, Framing square, Level
Miter saw, Drill machinery, Screwdriver, Sander
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- PART 1: 8×10 Lean to greenhouse plans
- PART 2: 8×10 Lean to greenhouse trims plans
Building a Small Lean to Greenhouse
The first step of the project is to build the base for the lean to greenhouse. Use 4×4 lumber for the beams. As you can easily notice in the plans, you have to make notches to both ends of the beams. Make 1 3/4″ deep cuts to both ends of the beams and then remove the excess with a chisel. Smooth the surface with sandpaper for a professional result.
The next step of the project is to choose the location for the greenhouse. Remove the vegetation layer and then level the surface thoroughly. Align the beams with attention, making sure the corners are square and then lock them together with 3 1/2″ screws. Drill pilot holes before inserting the screws, to prevent the wood from splitting.
The next step of the wood project is to build the front wall for the greenhouse. Cut the components from 2×4 lumber at the right dimensions. Align the edges with attention and make sure the corners are square. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs as shown in the diagram.
Build the tall side wall for the lean to greenhouse from 2×4 lumber. Drill pilot holes through the plates and then insert 3 1/2″ screws into the studs. Place the studs every 24″ on center, for a professional result. Make sure the corners are square and align the edges flush. Place double studs to both ends of the walls, for a professional result.
The next step of the garden project is about framing the opposite wall for the greenhouse. Use the same techniques to get the job done in a professional manner.
Assemble the back wall for the greenhouse from 2×4 lumber at the right dimensions. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs as shown in the diagram for a professional result. Check if the corners are square and align the edges flush.
Place the wall frames to the base of the greenhouse. Align the edges flush and plumb the wall frames with a spirit level. Drill pilot holes through the bottom plates and insert 3 1/2″ screws into the base skids. Moreover, you need to lock the adjacent wall together tightly with 3 1/2″ screws. Make sure the corners are square and check if the edges are flush.
Build the rafters from 2×4 lumber. Mark the cut lines on the slats and then get the job done with a circular saw. Smooth the edges with sandpaper.
Fit the rafters to the top of the greenhouse and then place them every 24″ on center. Drill pilot holes and insert 3 1/2″ screws to secure the rafters into plates tightly.
Fit the 2×4 supports to the back end of the greenhouse. Make angle cuts to the supports and then secure them into place 2 1/2″ screws. Drill pocket holes at both ends of the supports and insert screws to lock them into place tightly.
Fit 2×4 blockings between the rafters, so you can enhance the rigidity of the greenhouse. Drill pocket holes at both ends of the supports and secure them to the rafters with 2 1/2″ screws.
You really need to take a look over PART 2 of the greenhouse, where I show you how to build the front door, the vents and how to fit the trims. The trims will lock the plastic foil into place tightly.
This lean to greenhouse is ideal if you want to build a shelter for your flowers during the cold days. You can easily attach this greenhouse to an existing building.
This woodworking project was about 8×10 small lean to greenhouse 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.
Are there any 10×10 lean to greenhouse plans? I was going to use the 8×10 plan but think a little larger plan will work better.
Also, I was going to use pretreated lumber (on dirty screen rock) for base & regular for frame. Would this be ok? Seems like Lowes & Home Depot are always short on pretreated lumber, plus the regular is cheaper.
Plans for 8×10 lean to refer to drilling through plates on front wall. What plates? The shop list doesnt have plates listed.
Plates are the horizontal beams of the wall.
On rafters for the 8’x10′ greenhouse, is the top part cut at a 14.5 degree angle similar to what is shown for bottom or is it a horizontal cut 3.5 in. long x 1 in. deep? Is just tapered from edge on both sides or would it be a birdsmouth?
No. First make the 3 1/2 x 1 1/2″ cut. Then cut the top edge at 14.5 degrees.