Just finished a bench for our patio. I had originally downloaded the free plans, then made a few modifications. Then I made some more!
Changes included custom made arm rests instead of a flat board with no character. A custom center console with cup holders instead of a plain non functioning console (boring!). Instead of individual boards for each seat, I used boards that fit lengthwise across the supports. Much easier and quicker to install. Thus the need for a revised console. I am glad I did it this way. I also widened the seats from 19 to 22 inches. Gotta have more room for the fat boy!
The angle of the seat back supports was 15 degrees but they weren't comfortable. So today we dismantled it partially and I recut the angles to 18 degrees. Much more comfortable.
For the boards used for seat bottom and backs, we used 1 1/4 deck boards (actually 1 1/6th inches thick). This made for a much stronger, and heavier bench. We moved the bench from the shop to the patio then installed the boards. The reason I went with the deck boards is the big box store was out of the treated 1x4's. Now I am glad they were out and the decision was made to go with more robust material. I shouldn't have to ever rebuild this bench.
Here are some pics of the construction techniques, and yes, a router was used on this project!
If you are interested in the original Sketchup plans, Google "DIY Pete". He has several projects. From watching his video, I can tell he was aiming his project at the homeowner with minimal tools, so just anyone with a few tools can build the bench with very little effort. I have to admit, his build video was a bit painful to watch. No clamps? What's up with that?
Hope you like the pics.