I am building a an English outdoor bench out of white oak and have a question about what size dominoes to use. I know i need the outdoor dominoes but my question is what size and how many to ensure good strength vs the traditional mortice and tenons that are very large on the plans. I will be joining leg post and rails that are 2 3/4 thick by 2 7/8 the also rails that are 1 7/16 thick by 3 3/4. I have the Domino 700. Can someone recommend the thickness and length of the domino to use for best results. Will 2 do it or should it be 4? Can these be pinned with a dowel or is it necessary. All of the tenons in the plans are 3/4 thick by generally 1 3/4 long of varies heights and pinned with dowels. I have never built anything with the 700 this beefy. I am proficient with the 500. Or should i bite the bullet and stick with the plans? Here is a pic so you can get an idea of the scale. Thank you in advance
Garden Bench.JPG