I’d say get the Preston mega side tray cos the brackets can be moved to fit your leg spacing perfect, also just add the right inserts and your away.
Good size, but not stupidly big and will fit in most carryall net pockets. (did in my preston hardcase bag)

@double red wrote:

im after a big side tray to fit a boss modulator any ideas lads~think ~think thanks lee.

fox msb side trays are big dont know whether it will fit thou but might do as the attachments are sliding ones have a look an see

have a big fox one and they are awesome, very solid and have two attachments for youre legs

try brilobox, they make a large double knuckle tray or a folding mega tray with telescopic legs.

The large fox msb tray is excellent, and very sturdy when fully loaded

The new preston Tackle and Bait tray (2piece) could be the answer. it has 2 sections both 280mm x 390mm inside, one side is a tray and the other holds a plastic tray.

a few of my mates have boss and tournament boxes the browning side tray is large and has a stabalising leg I do have preston side trays but forget the mega tray it weighs a ton, one of the lads uses a rive and has a separate fitting from the rive to the boss but again it’s heavy I think john brennan got an avanti cheap but mega big and light with side leg

matchbox mega tray come with outrigger legs just order round or square hole folds in half and fits in most big carryhalls

I used to have the folding Matchbox one, still do but for round holes. Have a Preston Megatray but never really got on with it. I think for the useable area it is bulky and the support leg is too short. Fine if you sit on commercial platforms or tow paths but for naturals and in water it is not enough.
I looked at the Brilo one – £50 in black or £45 unfinished then £10 delivery. Not clear what size but looks good and very like the Matchbox/Drennan ones.
Matchbox mega has 2 legs, as long as the seatbox legs, and if ordered on website is £59.99 delivered.
Personally I have gone back to the Matchbox one.

I use the preston mega side tray on my fox msb euro box and it’s very stable do you the extendable leg that it comes with.