Materials Checklist for a 10x12 Greenhouse

🛠️ Materials Checklist for a 10×12 GreenhouseFoundation (choose one option)

• Gravel (3–4 tons for a 10×12 base, ~3″ deep) or

• 12–15 concrete pavers (12×12 in) or

• Concrete slab (10×12 ft, ~3–4 in thick, ~1.5 cubic yards of concrete)

• 12 pressure-treated 4×4 posts (for framing perimeter if gravel/pavers used)

Frame (wood option) – Materials Checklist for a 10×12 Greenhouse

• 24 pieces 2×4 lumber (10–12 ft long) for wall framing and rafters

• 6 pieces 4×4 lumber (8 ft long) for corner and door supports

• 2 pieces 2×6 lumber (12 ft long) for ridge beam support

Covering 

• 12 sheets polycarbonate panels (4 ft x 8 ft, UV-resistant, 6mm or thicker)

• Polycarbonate fastener screws with rubber washers (100–150 pcs)

• Aluminum tape for sealing edges (1 roll)

Doors & Windows

• 1 pre-hung exterior door (or build a wood-framed door)

• Hinges (2–3 heavy-duty for door, 2 per vent window)

• 2 vent windows (can be DIY with polycarbonate offcuts)

Fasteners & Hardware

• 3″ galvanized wood screws (5 lb box)

• 2.5″ galvanized screws (3 lb box)

• Angle brackets or joist hangers (12–16 pcs)

• L-brackets for corners (8 pcs)

Ventilation & Accessories – Materials Checklist for a 10×12 Greenhouse

• Automatic vent openers (optional, 2–4 units)

• Small oscillating fan (optional, 1–2 units)

• Shade cloth (10×12 ft, optional for hot climates)

Interior Setup – Materials Checklist for a 10×12 Greenhouse

• 2–3 wooden benches/shelves (DIY with 2x4s and plywood)

• Raised beds (optional, ~2–3 units, 3 ft x 6 ft each)

• Gravel or pavers for walkway (2 ft wide path)

🔨 Step Sequence (Quick Build Guide)

1. Foundation: Level the ground, install gravel/pavers/slab, and frame perimeter.

2. Frame: Build base frame, add vertical supports, and install rafters.

3. Covering: Attach polycarbonate panels with proper screws and seal edges.

4. Door & Vents: Install door and cut openings for vents/windows.

5. Ventilation: Add fans or automatic openers if desired.

6. Interior: Place benches, beds, and shelves.

✅ Pro Tip: If you want extra insulation for winter, consider using double-wall polycarbonate panels (8mm or thicker) instead of single-wall sheets.