Activity - 12937 (v4) Construct a timber pergola as a BCATS project

Student name:

Calculate the listed materials required for the following freestanding pergola. Show your workings.

Width – 2.400m

Length – 3.200m

Height – 2.400m

Concrete to posts	m3

Posts	100 x 100mm H4, 0.800m in ground

Bearers	150 x 50mm H3, overhang 0.150m

Joists	150 x 50mm H3

Coach bolts	210 x 12mm galvanised, nuts and 50 x 50mm square washers

Petroleum grease

Nails	75mm galvanised jolt head nails

Material	Amount required

Complete the order form your teacher gives you.

What method can be used to check if the corners of a rectangle are 90 degrees?

How long should you leave the concrete in the post holes to set before fixing the bearers and joists?

Describe how the bearers should be positioned.