Identify predecessors for each of your activities. Then, employ the network diagram and calculate the schedule duration using the forward and backward pass methods.

Provide in excel format.

Number	Activity	O	P	M	WA
1	Permits	48	120	72	76
2	Source Tiny Home components	24	72	36	40.6
3	Access & Logs	12	24	20	19.3
4	Leveling	18	36	24	25
5	Frame floors	8	16	12	12
6	Frame walls	8	16	12	12
7	Move in large items	4	12	8	8
8	Plan layout	12	24	16	16.6
9	Apply glue to studs	3	9	5	5.3
10	Check window dimensions	5	12	8	8.1
11	Install windows	12	24	16	16.6
12	Frame roof	36	72	50	50.6
13	Plan roof layout	3	9	5	5.3
14	Frame doorway	3	9	5	5.3
15	Paint sidings	4	12	7	7.3
16	Outside trim work	4	12	7	7.3
17	Rough Plumbing	36	120	72	74
18	Rough Electrical	48	72	50	53.3
19	Rough gas	48	72	50	53.3
20	Rough HVAC	48	72	50	53.3
21	Insulate	24	36	30	30
22	Install flooring	12	24	18	18
23	Design kitchen layout	6	12	8	8.3
24	Finish and test all HVAC, electrical and gas	3	9	5	5.3
25	Clean up debris	3	9	5	5.3