If you have narrowed your shortlist to two specific designs, this is exactly the kind of decision where a side-by-side spec view saves a weekend of second-guessing. Both plans below are complete, code-aware DIY builds, but they differ on the things that matter for a backyard project — total cost, raw labor hours, footprint, and the wood species on the cut list.
Side-by-side specs
| 3x4 ft Rose Garden Arbor Plan | 10x12 ft Toolshed Overhang Lean-To Shelter Plan | |
|---|---|---|
| Category | Arbors | Lean-To Shelters |
| Style | Rose Garden | Toolshed Overhang |
| Footprint | 3x4 ft (12 sq ft) | 10x12 ft (120 sq ft) |
| Wood species | Cypress | Mahogany |
| Roof finish | corrugated polycarbonate panels | asphalt architectural shingles |
| Difficulty | Intermediate | Beginner |
| Build time | ~36 hrs | ~13 hrs |
| Materials cost | $200–$325 | $4,450–$6,950 |
| Footing depth | 36″ × 2 posts | 36″ × 2 posts |
| Concrete | 4 × 60-lb bags | 4 × 60-lb bags |
| Cut-list items | 5 | 5 |
| Build steps | 9 | 10 |
Cost & budget
The 3x4 ft Rose Garden Arbor Plan lands in the $200–$325 range for materials in Cypress, while the 10x12 ft Toolshed Overhang Lean-To Shelter Plan runs $4,450–$6,950 in Mahogany. The first plan is approximately 2120% more expensive at typical 2026 lumber-yard pricing — driven mostly by the choice of Mahogany over Cypress and the difference in cubic concrete volume between 2 and 2 footings.
Labor & difficulty
At ~36 hours, the 3x4 ft Rose Garden Arbor Plan is rated Intermediate. The 10x12 ft Toolshed Overhang Lean-To Shelter Plan takes ~13 hours and is rated Beginner. The labor delta is roughly 23 hours, or one extra working day on the 3x4 ft Rose Garden Arbor Plan. If you are newer to outdoor woodworking, the 10x12 ft Toolshed Overhang Lean-To Shelter Plan is the safer pick — it uses simpler joinery and fewer compound cuts.
Footprint & site fit
At 12 sq ft vs 120 sq ft, you are choosing between a focal-point garden structure and a generous patio cover. Allow at least 24 inches of clearance on every side for furniture and walking paths — that means the 3x4 ft Rose Garden Arbor Plan needs a clear area of approximately 7×8 ft and the 10x12 ft Toolshed Overhang Lean-To Shelter Plan needs 14×16 ft.
Material & durability
The 3x4 ft Rose Garden Arbor Plan is built from Cypress, while the 10x12 ft Toolshed Overhang Lean-To Shelter Plan calls for Mahogany. The species choice drives the cost delta and the maintenance schedule. Pressure-treated southern yellow pine is the cheapest and most rot-tolerant for in-ground posts; western red cedar is the DIY favorite for visible parts; redwood and white oak are heritage choices that command a premium.
Verdict
For a builder weighing these two specifically, 3x4 ft Rose Garden Arbor Plan is the clear budget pick. If both fit your budget and yard, default to the design whose style language matches the rest of your house — a Craftsman bungalow looks awkward beside a modern slatted pergola, and vice versa.
Read each plan in full before committing: the complete 3x4 ft Rose Garden Arbor Plan page and the complete 10x12 ft Toolshed Overhang Lean-To Shelter Plan page. Both ship with full cut lists, hardware schedules, footing specs, and step-by-step build instructions.