How to build a household wheelchair ramp - or Mother-daughter bonding through construction

This Youtube video convinced me I would be able to build a home wheelchair ramp.  Surely with the help of my teen-ager I could accomplish this project.

Step 1 - saw the top sheet of plywood.  Ooops, no saw.    Go to Home Depot and buy a sheet of plywood and have them cut it.  First 2 cuts are free.

Step 2 - put those railings on the of the ramp.  Ooops, no clamps, and no directions.  Ask my neighbors and friends for help.  Neighbor sends her husband who does some carpentry.

Step 3 - Lay out the sheet of plywood over the steps.   Have neighbor bring saw to cut wedges to support the bottom of the ramp.

Step 4 - Nail wedges to bottom of ramp.  Nail 2x4s to top of ramp so the ramp will sit on top of step to raise the ramp to the level of the door

Step 5 - Send neighbor home.  He has been a huge help in getting the ramp laid out, but I can't take his whole Saturday.

Step 6 - Go back to Home Depot to buy 2x4s to reinforce the ramp surface.  Measure before I go, so I can get them cut for free. 

Step 7 - Go back to Home Depot to buy more 2x4s.   Take daughter along so she can be the second customer and also get 2 cuts for free. 

Step 8 - Nail 2x4s to underside of ramp to reinforce.  No points for pretty.

Step 9 - Add metal handles to side of ramp so it can be lifted

Step 10 - Install ramp.  

Ramp is a little steep and a little bendy.  Makes me wonder if it will crack under extended use. 

Note:  2 years later ramp working fine.  Creaks a little, but holding up.  Won't win any awards for design or carpentry, but it does the job.