1: Collect tools and materials required.
2: Examine the working place.
3: Set safety props or advance the forepoling.
4: Prepare position for girder.
5: Raise girder into position.
6: Set struts and covering material.
7: Secure girder in position.
8: Examine work.
9: Withdraw safety props, and collect tools.

1: Collect tools and materials required.

	(a)	Hammer, pick, shovel, saw, measuring tape, chalk, and string.
	(b)	Girder, struts, lids, covering materials, wedge lids.

2: Examine the working place.

(See Breakdown No. 10, "Examining the working place — in the roadway" .)

3: Set safety props or advance the forepoling.

(See Breakdown No. 19, "Forepoling" .)

4: Prepare position for girder.

(i) position of hole estimated by measuring a strut length from previous girder set; (ii) holes to be deep enough to take a lid behind the end of the girder; (iii) hole at one side to be made so that the girder may be slotted into position.

	(a)	Advance centre line of roadway.
	(b)	Square off sides of roadway.
	(c)	Cut notch holes into sides of roadway : —

5: Raise girder into position.

	(a)	Place a lid at the back of the notch hole cut squarely into the side of the roadway.
	(b)	Raise one end of the girder into the hole which has been cut squarely into the side of the roadway.
	(c)	Raise the other end of the girder and slot it into the hole on the other side of the roadway.
	(d)	Centre the girder under centre line mark on roof.

6: Set struts and covering material.

	(a)	Place covering materials above girder to secure the roof.
	(b)	Place struts between girder and one previously set.

7: Secure girder in position.

	(a)	Place lids under each end of girder and between end of girder and back of the notch hole.
	(b)	Drive in wedge lids to secure the girder in position.
	(c)	Wedge the covering material tight against the roof.

8: Examine work.

	(a)	Check that centre of girder is under centre line marked on roof.
	(b)	Check that the girder is at right angles to the line marked on the roof.

9: Withdraw safety props, and collect tools.

	(a)	Remove all surplus debris and materials.
	(b)	Withdraw safety props.
	(c)	Collect tools and place where safe.