8×8 Greenhouse Plans

This step by step diy project is about 8×8 small greenhouse plans. If gardening is your hobby, but you don’t have that much to allocate to it, you should check out the plans for this small greenhouse. This 8×8 wood greenhouse has a beautiful design so you can match it with the style of your property. Take a look over the rest of my woodworking plans, if you want to get more building inspiration. Premium Plans available for this project in the Shop.

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

8×8 Greenhouse Plans

Building a greenhouse

Cut & Shopping Lists

• A – 8 pieces of 2×3 lumber – 16″ long STAKES
• B – 4 pieces of 4×4 lumber – 96″ long SKIDS
• C – 2 pieces of 2×4 lumber – 96″ long, 5 pieces – 72″ long, 4 pieces – 22 1/2″ long 2xSIDE WALL
• D – 2 pieces of 2×4 lumber – 89″ long, 4 pieces – 72″ long FRONT & BACK WALL
• E – 2 piece of 2×4 lumber – 18″ long SUPPORTS
• F – 1 piece of 2×6 lumber – 96″ long TOP RIDGE
• G – 2 pieces of 2×2 lumber – 36″ long, 2 pieces – 69″ long, 1 piece – 33″ long 2xDOOR
• H – 2 pieces of 2×2 lumber – 19 1/2″ long, 2 pieces – 22 1/2″ long 4xVENT

• 4 pieces of 4×4 lumber – 8′
• 8 pieces of 2×4 lumber – 8′
• 31 pieces of 2×4 lumber – 6′
• 2 pieces of 2×3 lumber – 6′
• 10 pieces of 2×2 lumber – 6′
• 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
• 4d nails, 16d nails
• 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 day

Related

• PART 1: 8×8 Greenhouse Plans 
• PART 2: 8×8 Greenhouse Plans

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How to build a 8×8 gable greenhouse

Building the base skids

Before starting the project, you need to take care of the preliminary aspects. Therefore, you need to select the right location for the small greenhouse. The greenhouse should get at least 8 hours of direct sunlight every day, so a southern orientation is ideal.

Build the base for the greenhouse from 4×4 lumber. As you can easily notice in the diagram, you need to make notches to both ends of the beams. Make 1 3/4″ deep cuts to the marked areas and then remove the excess with a chisel. Smooth the recess with sandpaper.

Fitting the stakes

Assemble the base for the greenhouse and lock the components together tightly with 3 1/2″ screws. Use 2×3 stakes to lock the lock the base frame into place. Secure the stakes to the base with 2 1/2″ screws. Place the stakes on both sides of the greenhouse, as shown in the plans.

Building the side walls

Use 2×4 lumber for the side wall frames. Drill pilot holes through the plates then insert 3 1/2″ screws into the studs. Moreover, you need to fit the frame for side vents. Drill pocket holes at both ends of the supports and secure them to the studs with 2 1/2″ screws. Make sure the edges are flush and check if the corners are square.

Building the front and back wall

Build the front and back walls for the greenhouse from 2×4 lumber. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs as shown in the plans.

Assembling the greenhouse frame

Fit the wall frames to the base of the greenhouse. Align the edges flush, drill pilot holes through the bottom plates and insert 3 1/2″ screws into the base. Moreover, you need to lock the adjacent walls together tightly, by drilling pilot holes and insert 3 1/2″ screws.

Fitting the ridge beam

Fit the 2×6 top ridge to the top of the greenhouse, as shown in the free plans. Use 2×4 lumber for the supports. Drill pocket holes at both ends of the supports and insert 2 1/2″ screws into place. Use a spirit level to plumb the supports and a carpentry square to make sure the corners are right angled.

Building the rafters

Build the rafters for the greenhouse from 2×4 lumber. Mark the cut lines on the beams and then get the job done with a saw. Smooth the edges with sandpaper.

Fitting the rafters

Fit the rafters to the top of the greenhouse every 24″ on center. Drill pilot holes and insert 2 1/2″ screws to lock the rafters into place tightly.

Framing the vents

Build the side vents from 2×2 lumber. Cut the components at the right dimensions from 2×2 lumber. Drill pilot holes and insert 2 1/2″ screws to lock the vents together tightly. Make sure the corners are right angled.

Building the door frame

Build the doors for the greenhouse from 2×2 lumber. Drill pilot holes and insert 2 1/2″ screws to lock the frame of the doors together tightly.

8×8 Greenhouse Plans

This is a simple project you should be able to build in a few days without much effort. Don’t forget to take a look over PART 2 of the woodworking project to learn how to build the door, as well as the vents and the trims. Premium Plans available for this project in the Shop.

If you want to get PREMIUM PLANS for this project (different design with re-engineered structure), in a PDF format, please press GET PDF PLANS button bellow. Thank you for the support.

This woodworking project was about 8×8 small 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.

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