I'm looking to potentially start a construction contractor business. I'll be working with someone who has 20+ years experience in construction industry. However, this was sometime ago and in a different country.

I'm currently in the research phase. I'm looking for either basic and cheapish software that provides estimation for material and labour, or a guide book that has this information, or an online database that contains this info.

If there are other resources on or offline that you think will be useful, i'm all ears.