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
| 20x24 ft Hip-Roof Pavilion Plan | 20x24 ft Hot Tub Pavilion Plan | |
|---|---|---|
| Category | Pavilions | Pavilions |
| Style | Hip-Roof | Hot Tub Pavilion |
| Footprint | 20x24 ft (480 sq ft) | 20x24 ft (480 sq ft) |
| Wood species | Composite (Trex / Azek) | Composite (Trex / Azek) |
| Roof finish | aluminum louvered system | retractable canvas awning |
| Difficulty | Advanced | Intermediate |
| Build time | ~149 hrs | ~32 hrs |
| Materials cost | $50,675–$79,200 | $50,675–$79,200 |
| Footing depth | 36″ × 6 posts | 36″ × 6 posts |
| Concrete | 12 × 60-lb bags | 12 × 60-lb bags |
| Cut-list items | 7 | 7 |
| Build steps | 12 | 12 |
Cost & budget
The 20x24 ft Hip-Roof Pavilion Plan lands in the $50,675–$79,200 range for materials in Composite (Trex / Azek), while the 20x24 ft Hot Tub Pavilion Plan runs $50,675–$79,200 in Composite (Trex / Azek). The second plan is approximately 0% more expensive at typical 2026 lumber-yard pricing — driven mostly by the choice of Composite (Trex / Azek) over Composite (Trex / Azek) and the difference in cubic concrete volume between 6 and 6 footings.
Labor & difficulty
At ~149 hours, the 20x24 ft Hip-Roof Pavilion Plan is rated Advanced. The 20x24 ft Hot Tub Pavilion Plan takes ~32 hours and is rated Intermediate. The labor delta is roughly 117 hours, or one extra working day on the 20x24 ft Hip-Roof Pavilion Plan. If you are newer to outdoor woodworking, the 20x24 ft Hot Tub Pavilion Plan is the safer pick — it uses simpler joinery and fewer compound cuts.
Footprint & site fit
At 480 sq ft vs 480 sq ft, you are choosing between a full outdoor room and a full outdoor room. Allow at least 24 inches of clearance on every side for furniture and walking paths — that means the 20x24 ft Hip-Roof Pavilion Plan needs a clear area of approximately 24×28 ft and the 20x24 ft Hot Tub Pavilion Plan needs 24×28 ft.
Material & durability
The 20x24 ft Hip-Roof Pavilion Plan is built from Composite (Trex / Azek), while the 20x24 ft Hot Tub Pavilion Plan calls for Composite (Trex / Azek). Both plans share the same species, so you can buy from a single lumber order if you build them in sequence — a common move for homeowners adding both a primary structure and a complementary screen or arbor.
Verdict
For a builder weighing these two specifically, 20x24 ft Hot Tub Pavilion Plan is the faster build. 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 20x24 ft Hip-Roof Pavilion Plan page and the complete 20x24 ft Hot Tub Pavilion Plan page. Both ship with full cut lists, hardware schedules, footing specs, and step-by-step build instructions.