Hi Guy's, thanks for the suggestions, I think will go with dowels in an elongated hole in the tongue route..
Here's some pics of the timber and today's progress, followed by some details of the bench:
Some nice 13" wide beech boards, these three will make up the workbench top. All the boards are 2" thick, i'll be cutting them into 3" staves, the top is gonna be a whole lot of woman!
The rest of the stock; also beech - mostly 2" and 1.5" boards of varying widths:
Stock for the trestle feet ripped and cross-cut to over-length:
Face edge and face side jointed:
All stock squared and thicknessed:
Stock cross-cut to just over length, and glued to make a 3" x 3" x 22.5" pair of trestle feet!
So, some good progress today from only a couple of hours in the workshop. I really took my time today to setup my machines for square and make test cuts to ensure I don't make any silly mistakes.
The beech has come out very well from the P/T its a real joy to plane. Also, the new festool ripping blade makes very easy work, even in the 2" thick boards. Crosscutting is not half-bad either from a 12t blade.
So, the details for the bench:
The worktop is going to be 24" x 48" + 3" breadboard endcaps on each end. The staves that make up the top will be 2" x 3" deep and will be laminated together.
The bench will stand about 36" high and will feature a tool placement area at the back in the form of a series of cutouts and holes in which to place chisels, gauges, mallets etc. I'm opting for that instead of a tool-well.
The entire bench will be made from Beech and i'll be using Black Walnut as a contrasting wood in the joints, the doweling and any other small feature that I feel would add something to the design.
Initially, i'll only be having 1 vice at the front of the bench, although i may eventually have a second at the right hand side end.
There will be two rows of 20mm bench holes running the length of the workbench, I favour round holes over square ones as I feel they are more versatile in terms of work holding accessories available - and this will be compatible with my festool table that also uses 20mm holes.
Another small feature i'll be adding is a workstop that will come through the worktop on the left hand side of the bench - it will be attached to the front left leg and will have a threaded knob to lock in place - this will be used for most planing requirements.
The base will be made up of two trestles and 4 stretchers (2x5). The bottom row of stretchers will have a base added to make it into a handy shelf that will carry my waterstones, shooting board, cutting board, mitre-box etc..
Well, thats about it for a week - i'm off to the norfolk broads to stay on a house-board for 5 days, i'll start work on the legs the following weekend.