Flat Roof Shelter
A free-standing open shelter with a single sloping roof of boards on a timber frame of posts, headers and rafters, with cross-braced railings between the posts. Plan size, overall height and eave height, Roof overhang and board thickness, Post, header and rafter sizes and rafter spacing, Number of posts and railed sides, Finish
Details
Category: Gazebos › Gazebos and Garden Pavilions
By Huu Khanh Nguyen · Updated November 5, 2026
Parameters
| Name | Default | Unit |
|---|---|---|
| Width | 3400 | mm |
| Depth | 3400 | mm |
| Height | 2450 | mm |
| Eave height | 2272 | mm |
| Roof overhang | 200 | mm |
| Roof board thickness | 19 | mm |
| Post size | 120 | mm |
| Header width | 203.2 | mm |
| Header depth | 203.2 | mm |
| Rafter width | 76.2 | mm |
| Rafter depth | 203.2 | mm |
| Maximum rafter spacing | 609.6 | mm |
| Posts along width | 2 | |
| Posts along depth | 2 | |
| Railed sides | 3 | |
| Knee brace length | 914.4 | mm |
| Knee brace width | 101.6 | mm |
| Knee brace depth | 203.2 | mm |
| Timber | timberSpruceUntreated | |
| Roof covering | timberSpruceUntreated | |
| slope | (sizeZ - eaveHeight) / sizeY | |
| drop | roofThickness * Math.sqrt(1 + slope * slope) | mm |