I have a customer (lawn care) who asked if I would put up a small retaining wall in her front yard to help level out the flower bed. Her main entrance sits about 3' higher then the lowest point in the yard, sloping away from the door. The wall will be about 15' long and 3' at its highest point. Building it wont be a problem, Ive done similar walls on my own property, but pricing it is my concern. Im not really sure how to estimate this job. Can someone give me some ideas. Perhaps some photos of small walls you may have done, with approximate pricing so I can get a rough idea. I get $40/hr labor for lawn care, so Im thinking cost of materials + 25%, + Labor, + any special tool rentals needed. Any help you can give would be appreciated. Im not looking to make a lot of money on this since it would be my first commercial job, but I dont want to lose any either. Looking to learn from this job for potential others. Thanks for you help in advance.