Tree Protection Hoarding in Whitby
Built to the Town of Whitby’s Tree Protection Requirements and accepted by the Town’s Landscape Inspector before work starts.
What Whitby requires
Whitby sets its rules in the Town’s Tree Protection Requirements (2020). They require:
- Standard barrier (Detail 700): light-duty fencing wired to 2.4 m steel T-bar posts, spaced no more than 1.2 m apart.
- Heavy-duty barrier (Detail 701): plywood at least 1.2 m high and 19 mm thick, on T-bar posts or a 2×4 frame, where fill or excavated material will be stored near a protection zone.
- Where it goes: at the edge of the tree protection zone or the drip line plus 1.0 m, whichever is greater.
- Sign: at least 40 × 60 cm, weather-resistant, on each side of the fencing and no more than 20 m apart, identifying the Town of Whitby Tree Protection Zone.
- Before work starts: the Town’s Landscape Inspector confirms and accepts the fencing on site, and the arborist certifies in writing that it’s installed before demolition, building or site alteration permits are issued.
- Removing a tree: needs prior written approval from the Town, and any change to the approved Tree Protection Plan needs Town authorization.
Minimum protection distances
Minimum tree protection zone by trunk diameter (DBH), from Table 3.1 of the Town’s requirements.
| Trunk diameter | Minimum tree protection zone |
|---|---|
| Under 10 cm | 1.2 m |
| 10–29 cm | 1.8 m |
| 30–40 cm | 2.4 m |
| 41–50 cm | 3.0 m |
| 51–60 cm | 3.6 m |
| 61–70 cm | 4.2 m |
| 71–80 cm | 4.8 m |
| 81–90 cm | 5.4 m |
| 91–100 cm | 6.0 m |
The Town or the arborist can require a larger zone for significant trees.
Protected trees
- Trees to inventory: 10 cm DBH and larger on the property, on neighbouring property within 6 m of the boundary, and on public property.
Need it built in Whitby?
Send us your permit conditions or Tree Protection Plan and we’ll quote it to Whitby’s spec.
What we build in Whitby
Light-duty fencing on T-bars to Detail 700, plywood to Detail 701 where material will be stockpiled, and the Town’s TPZ signs on every side.
Whitby FAQ
Does my neighbour’s tree count?
It can. Whitby’s inventory covers trees 10 cm DBH and larger on adjacent property within 6 m of the boundary.
Who checks the fence?
The Town’s Landscape Inspector confirms and accepts it on site, and the arborist certifies it in writing before permits are issued.
Do you build to the arborist report?
Yes. We build what the arborist report states: the protection zones, the barrier type and any extra measures it calls for. Where the report asks for more than the City minimum, we build to the report.
Can you recommend an arborist?
Yes. If your permit needs an arborist report or Tree Protection Plan and you don’t have one yet, tell us when you get in touch and we’ll recommend an arborist.
From the municipality’s own documents
Requirements summarized from the documents above. Your permit conditions or approved Tree Protection Plan always take precedence. Confirm with the municipality if anything differs.
Tree protection in Whitby?
Send us your permit conditions, site plan or arborist’s Tree Protection Plan and we’ll quote it to your municipality’s spec.